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Error and Warning Dictionary


Below is a full list of all possible Twilio REST API error codes. Read our guidance on debugging your Twilio application for general help. You can also download all of the error codes as JSON.


00000-09999

00000-09999 page anchor
CodeDescription
Error

Bad Request
Error

Forbidden
Error

Not Found
Error

Unknown Error Code
Error

Internal Error

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CodeDescription
Error

Account is not active
Error
Twilio Phone Numbers DocumentationPhone Numbers

Trial accounts do not support the feature you tried to use
Error

Incoming call rejected due to inactive account
Error

Call concurrency limit exceeded
Error
Twilio Voice DocumentationVoice

Voice calling has been disabled for this account
Error
Twilio Voice DocumentationVoice

Website URL doesn’t match the required format
Error
Twilio Voice DocumentationVoice

Authorized Representative must have a valid US phone number (+1).
Error
Twilio Voice DocumentationVoice

Business address must be a US address.
Error
Twilio Voice DocumentationVoice

Business Registration Validation Failed.
Error
Twilio Voice DocumentationVoice

Voice Integrity rejected as linked Business profile is not in approved status
Error
Twilio Voice DocumentationVoice

CNAM registration rejected: linked Business Profile is not approved
Error
Twilio Voice DocumentationVoice

CNAM registration rejected: display name does not match the registered business
Error
Twilio Voice DocumentationVoice

CNAM registration rejected: display name contains prohibited content
Error
Twilio Voice DocumentationVoice

CNAM registration rejected: display name does not meet requirements
Error
Twilio Voice DocumentationVoice

Letter of Authorization incomplete or invalid
Error
Twilio Voice DocumentationVoice

Company registration is less than 1 year old
Error
Twilio Voice DocumentationVoice

Display name does not match with the business
Error
Twilio Voice DocumentationVoice

Logo does not match the business
Error
Twilio Voice DocumentationVoice

Display name does not adhere to formatting guidelines
Error
Twilio Voice DocumentationVoice

Logo does not comply with branding guidelines
Error
Twilio Voice DocumentationVoice

Call reason does not adhere to the guidelines
Error
Twilio Voice DocumentationVoice

Display name contains a typographical error
Error
Twilio Voice DocumentationVoice

Display name must not be a phone number
Error
Twilio Voice DocumentationVoice

Logo does not match display name
Error
Twilio Voice DocumentationVoice

Call reason must not contain a web link
Error
Twilio Voice DocumentationVoice

Call reason must not contain personally identifiable information
Error
Twilio Voice DocumentationVoice

Brand Verification — No Customer Response
Error
Twilio Messaging DocumentationMessaging

Invalid URL format
Error
Twilio Messaging DocumentationMessaging
Twilio Voice DocumentationVoice

HTTP retrieval failure
Error

TCP connection timed out
Error

TCP connection refused
Error

HTTP communication total time out triggered
Error

HTTP connection failure
Error
Twilio Messaging DocumentationMessaging

HTTP protocol violation
Error

HTTP bad host name
Error

HTTP too many redirects
Error

HTTP invalid redirect
Error

HTTP error response code
Error

SSL/TLS Handshake Error
Error

Certificate Invalid - Domain Mismatch
Error

Certificate Invalid - Certificate Expired
Error

Certificate Invalid - Could not find path to certificate
Error

HTTP connection edge location is invalid
Error

HTTP connection edge location is not supported
Error

HTTP connection over Twilio Interconnect is not allowed
Error

HTTP retry policy is invalid
Error

Fatal protocol violation
Error

Invalid template URL
Error

Invalid template token
Error

Invalid template unclosed brackets
Warning
Twilio Messaging DocumentationMessaging

Misconfigured webhook
Warning
Twilio Messaging DocumentationMessaging

Invalid webhook method
Error
Twilio Voice DocumentationVoice

TwiML response body too large
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Media Message - Media exceeds messaging provider size limit
Error

Empty response body
Error

Document parse failure
Error

Invalid Twilio Markup XML version
Error

The root element must be Response
Warning

Schema validation warning
Error

Invalid Content-Type
Error

Invalid Upload Content-Type
Error

Internal Failure
Warning

Conference Noun cannot be mixed with Number nouns
Error

Annotate: Annotate must contain one valid nested element
Error

Annotate: Annotate must contain only one of element X
Warning

Annotate: Invalid nested element
Error
Twilio Voice DocumentationVoice

Annotate->BillingReferenceTag cannot be over 128 characters
Error

Dial: Cannot Dial out from a Dial Call Segment
Warning

Dial: Invalid method value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid ifMachine value
Warning

Dial: Invalid timeout value
Warning

Dial: Invalid hangupOnStar value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid callerId value
Warning

Dial: Invalid nested element
Warning
Twilio Voice DocumentationVoice

Invalid timeLimit value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid record value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid sequential value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid answerOnBridge value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid ringTone value
Warning

Dial->Number: Invalid method value
Warning
Twilio Voice DocumentationVoice

Dial->Number: Invalid sendDigits value
Warning
Twilio Voice DocumentationVoice

Dial: Invalid phone number format
Error

Dial: Twilio does not support calling this number or the number is invalid
Error
Twilio Voice DocumentationVoice
Twilio TrustHub DocumentationTrustHub

Dial: Call blocked by Twilio
Warning

Dial: Invalid country code
Error
Twilio Voice DocumentationVoice

Geo Permission configuration is not permitting call
Warning

Dial->Conference: Invalid muted value
Error
Twilio Voice DocumentationVoice

Dial->Conference: Invalid endConferenceOnExit value
Warning
Twilio Voice DocumentationVoice

Dial->Conference: Invalid startConferenceOnEnter value
Warning

Dial->Conference: Invalid waitUrl
Warning
Twilio Voice DocumentationVoice

Dial->Conference: Invalid waitMethod
Warning

Dial->Conference: Invalid beep value
Warning

Dial->Conference: Invalid Conference Sid
Warning

Dial->Conference: Invalid Conference Name
Error
Twilio Voice DocumentationVoice

Dial->Conference: Invalid Verb used in waitUrl, holdUrl, or announceUrl TwiML
Error
Twilio Voice DocumentationVoice

Dial->Conference: Invalid Trim Value
Error
Twilio Voice DocumentationVoice

Dial->Conference: Invalid Whisper SID
Warning

Dial->SIP: Invalid method value
Warning

Dial->SIP: Invalid sendDigits value
Warning

Dial->SIP: Invalid SIP URI
Warning

Dial: No SIP Authorization
Warning

Dial: Not allowed in this API version
Warning

Dial: SIP dialing not enabled for this account
Error
Twilio Voice DocumentationVoice

Dial: Invalid From number (caller ID)
Warning
Twilio Voice DocumentationVoice

Dial: Invalid callerID, too long
Warning

Dial: Invalid username or password attribute
Warning

Dial: Too many URIs passed
Warning

Dial: Too many headers passed
Warning
Twilio Voice DocumentationVoice

Dial: Invalid header name
Warning

Dial: Header is too long
Warning

Dial->Sip: SIP URI DNS does not resolve or resolves to an non-public IP address
Warning

Dialing .sip.twilio.com addresses is not currently allowed
Warning
Twilio Voice DocumentationVoice

Invalid recordingStatusCallback URL
Error
Twilio Voice DocumentationVoice

Invalid transcribeCallback URL
Error
Twilio Voice DocumentationVoice

Dial->Sim not supported in this realm
Error

2010 Conference API feature requested using 2008 API
Warning

Gather: Invalid finishOnKey value
Warning

Gather: Invalid finishOnKey value
Warning

Gather: Invalid method value
Warning

Gather: Invalid timeout value
Warning

Gather: Invalid numDigits value
Warning

Gather: Invalid nested verb
Warning
Twilio Voice DocumentationVoice

Gather -> Say: Invalid voice value
Warning

Gather->Say: Invalid loop value
Error

Gather->Play: Invalid Content-Type
Warning
Twilio Voice DocumentationVoice

Gather: Invalid input value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid speechTimeout value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid maxSpeechTime value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid partialResultCallbackMethod value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid hints value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid language value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid bargeIn value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid profanityFilter value
Warning
Twilio Voice DocumentationVoice

Gather: Invalid model value
Warning
Twilio Voice DocumentationVoice

Gather: speechTimeout auto cannot be used with model default
Error
Twilio Voice DocumentationVoice

Gather: callback must be over HTTPS when using gather with PCI compliance
Error
Twilio Voice DocumentationVoice

Gather: Invalid actionOnEmptyResult value
Error
Twilio Voice DocumentationVoice

Gather: Degraded Speech
Error
Twilio Voice DocumentationVoice

Gather: Invalid config for Google STT V2 provider
Error
Twilio Voice DocumentationVoice

Gather: Invalid config for speech provider
Warning

Play: Invalid loop value
Error

Play: Invalid Content-Type
Warning
Twilio Voice DocumentationVoice

Play: Invalid DTMF String
Warning

Say: Invalid loop value
Warning
Twilio Voice DocumentationVoice

Say: Invalid voice value
Warning
Twilio Voice DocumentationVoice

Gather element has an invalid "language" attribute value
Warning
Twilio Voice DocumentationVoice

Say: Invalid rate value
Warning

Say: Invalid text
Warning
Twilio Voice DocumentationVoice

`<Say>` element character limits exceeded
Warning

Record: Invalid method value
Warning

Record: Invalid timeout value
Warning

Record: Invalid maxLength value
Warning

Record: Invalid finishOnKey value
Warning

Record: Invalid transcribe value
Warning

Record: maxLength too high for transcription
Warning

Record: playBeep must be true or false
Warning

Record: Recording length is out of range for transcription
Warning

Record: Recording not available for transcription
Warning
Twilio Voice DocumentationVoice

Record: Transcription feature not available for this type of recording.
Warning
Twilio Voice DocumentationVoice

Record: Transcription not available for this recording
Error
Twilio Voice DocumentationVoice

Invalid 'recordingStatusCallbackEvent'
Warning
Twilio Voice DocumentationVoice

Record: invalid recordingTrack value
Warning
Twilio Voice DocumentationVoice

Record: Invalid trim value
Warning

Redirect: Invalid method value
Error
Twilio Voice DocumentationVoice

Twiml verb not supported by this API version.
Error
Twilio Voice DocumentationVoice

Refer not allowed on non-SIP call legs
Error
Twilio Voice DocumentationVoice

Dial: No referUrl attribute specified
Error
Twilio Voice DocumentationVoice

SMS verb not supported in this realm
Error
Twilio Voice DocumentationVoice

AddOns are not supported in this realm
Warning
Twilio Voice DocumentationVoice

Trial account call duration exceeded 10 minute limit
Error
Twilio Voice DocumentationVoice

Invalid Client Notification URL
Error
Twilio Voice DocumentationVoice

Client Notification URL Error Response
Warning
Twilio Voice DocumentationVoice

Reject: Invalid cause
Warning

Pause: Invalid length value
Warning

Invalid "To" attribute
Warning

Invalid "From" attribute
Warning

Invalid Body
Warning

Invalid Method attribute
Warning

Invalid statusCallback attribute
Warning

Document retrieval limit reached
Error
Twilio Messaging DocumentationMessaging

SMS send rate limit exceeded
Warning

From phone number not SMS capable
Warning
Twilio Messaging DocumentationMessaging

TwiML Reply message limit exceeded
Warning

Invalid Verb for SMS Reply
Warning

Invalid To phone number for Trial mode
Error

Enqueue: Invalid method value
Error

Enqueue: Invalid waitUrl
Error

Enqueue: Invalid Enqueue action url
Error

Enqueue: Queue name too short
Error

Enqueue: Queue name too long
Error

Enqueue: Invalid waitUrlMethod value
Warning
Twilio Voice DocumentationVoice

Enqueue: The targeted queue reached max queue size
Error

Dial->Queue: Invalid whisper method
Error

Dial->Queue: Invalid whisper url
Error

Dial->Queue: queue name too short
Error

Dial->Queue: queue name too long
Error

Dial->Queue: Invalid ReservationSid. Unable to dequeue
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Queue: Could not find or accept provided reservationSid
Error
Twilio Voice DocumentationVoice

Dial->Queue: Could not update worker to provided activity
Error
Twilio Voice DocumentationVoice

TaskRouter Dial Queue not supported in this realm
Error

Enqueue: Provided Workflow was not a valid sid
Error

Enqueue: Provided Attributes JSON was not valid
Error
Twilio TaskRouter DocumentationTaskRouter

Enqueue: Could not create Task
Error

Enqueue: Unable to cleanup task
Error
Twilio Voice DocumentationVoice

TaskRouter Enqueue not supported in this realm
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Invalid WorkflowSid
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Provided Attributes was not valid JSON
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Invalid Priority
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Invalid Timeout
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Unable to create task
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Unable to cleanup task
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Invalid ReservationSid
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Invalid PostWorkActivitySid
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Unable to accept Reservation
Error
Twilio TaskRouter DocumentationTaskRouter

Dial->Conference: Unable to update Worker
Error
Twilio TaskRouter DocumentationTaskRouter

Max concurrent Workers exceeded
Warning
Twilio TaskRouter DocumentationTaskRouter

start_date passed to TaskRouter statistics is older than 30 days.
Error
Twilio Voice DocumentationVoice

Start: Invalid nested noun value
Error

Call Progress: Internal Twilio Error
Error

Call Progress: Queue Timeout
Warning

Call Progress: Warning Response to Callback URL
Error
Twilio Voice DocumentationVoice

Action Callback URL must be absolute when updating in-progress calls
Error
Twilio Voice DocumentationVoice

Internal Server Error
Error
Twilio Voice DocumentationVoice

Whisper Not Available on Twilio Conference
Error
Twilio Voice DocumentationVoice

Conference is not bridged
Error
Twilio Voice DocumentationVoice

Failed to validate conference attributes
Error
Twilio Voice DocumentationVoice

Could not recognize conference sid or friendly name
Error
Twilio Voice DocumentationVoice

Conference Event: Internal Twilio Error
Warning
Twilio Voice DocumentationVoice

Conference Event: Error Response to Callback URL
Error
Twilio Voice DocumentationVoice

Conference is full
Error
Twilio Voice DocumentationVoice

Failed to join conference due to account concurrency limit exceeded
Error
Twilio Voice DocumentationVoice

Conference does not exist or is completed
Error
Twilio Voice DocumentationVoice

Conference: Participant label invalid (max 128 chars, not CallSid, no '/')
Error
Twilio Voice DocumentationVoice

Participant label invalid: max 128 chars, not a CallSid, no '/'
Error
Twilio Voice DocumentationVoice

Dial->Conference: Participant label is in use by another participant
Error
Twilio Voice DocumentationVoice

Participant label is in use by another participant
Error
Twilio Voice DocumentationVoice

Participant to be whispered is on hold
Error
Twilio Voice DocumentationVoice

Participant to be whispered is not present in the conference
Error
Twilio Voice DocumentationVoice

Participant failed to be added to the conference
Error
Twilio Voice DocumentationVoice

Unexpected conference status
Warning
Twilio Voice DocumentationVoice

Voice Recording : Unavailable because duration is too short
Warning
Twilio Voice DocumentationVoice

Voice Recording: Unavailable because recording is silent
Error
Twilio Voice DocumentationVoice

Voice Recording: Unavailable due to encryption failure
Error
Twilio Voice DocumentationVoice

Voice Recording: Unavailable due to no valid public keys
Error
Twilio Voice DocumentationVoice

Voice Recording: Unavailable due to internal encryption error
Error
Twilio Voice DocumentationVoice

Voice Recording: Encrypted with alternate public key
Error
Twilio Voice DocumentationVoice

Voice Recording: Request failed due to concurrent recordings
Error
Twilio Voice DocumentationVoice

Voice Recording: Cannot fetch .mp3 encrypted recording
Error
Twilio Voice DocumentationVoice

Internal failure when bulk deleting recordings from your account
Error
Twilio Voice DocumentationVoice

Voice Recording: Upload file to external AWS S3 bucket failed (Invalid Configuration)
Error
Twilio Voice DocumentationVoice

Voice Recording: Upload file to external AWS S3 bucket failed (Access Denied)
Warning
Twilio Voice DocumentationVoice

Voice Recording: Cannot download a dual-channel presentation of a mono recording
Error
Twilio Voice DocumentationVoice

Voice Recording: Resource not in a state to accept recording action request
Error
Twilio Voice DocumentationVoice

Forbidden to access data
Error
Twilio Voice DocumentationVoice

Completed summary for this call wasn't found
Error
Twilio Voice DocumentationVoice

This call ended more than 30 days ago
Error
Twilio Voice DocumentationVoice

Voice Insights Advanced Features not enabled
Error
Twilio Voice DocumentationVoice

Internal Server Error - Query Timeout
Error
Twilio Voice DocumentationVoice

Internal Server Error
Error
Twilio Voice DocumentationVoice

Invalid query parameter
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid document submission
Error
Twilio Phone Numbers DocumentationPhone Numbers

Illegible or blurry document submission
Error
Twilio Phone Numbers DocumentationPhone Numbers

Expired or invalid document submission
Error
Twilio Phone Numbers DocumentationPhone Numbers

Redactions in document.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing information
Error
Twilio Phone Numbers DocumentationPhone Numbers

Information does not match the supporting document
Error
Twilio Phone Numbers DocumentationPhone Numbers

Incomplete document submission.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Name mismatch (Proof of Identity)
Error
Twilio Phone Numbers DocumentationPhone Numbers

Nationality mismatch (Proof of Identity)
Error
Twilio Phone Numbers DocumentationPhone Numbers

Business registration number mismatch.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Business name mismatch
Error
Twilio Phone Numbers DocumentationPhone Numbers

Require domestic address.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Require domestic emergency address.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid or incomplete address provided.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid or incomplete emergency address provided.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Address mismatch.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Address not found
Error
Twilio Phone Numbers DocumentationPhone Numbers

PO Box not allowed.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Proof of Identity Required for Authorized Representative.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Proof of authorized representative’s association with the business required.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Name mismatch (Proof of Address)
Error
Twilio Phone Numbers DocumentationPhone Numbers

Outdated Proof of Address document
Error
Twilio Phone Numbers DocumentationPhone Numbers

Document contains an inactive business
Error
Twilio Phone Numbers DocumentationPhone Numbers

Failed to upload an unprocessable document
Error
Twilio Phone Numbers DocumentationPhone Numbers

Document rejected (number type restricted)
Error
Twilio Phone Numbers DocumentationPhone Numbers

One or more of the required information is missing.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing information in the form
Error
Twilio Phone Numbers DocumentationPhone Numbers

Information does not match the supporting document
Error
Twilio Phone Numbers DocumentationPhone Numbers

The phone number type you selected requires a valid domestic address.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Issue with the Supporting Document(s)
Error
Twilio Phone Numbers DocumentationPhone Numbers

Issue with the inputs you provided
Error
Twilio Phone Numbers DocumentationPhone Numbers

Under age Individual
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to verify association between business name and website
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid phone number
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid email
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing Work Email for Authorized Representative
Error
Twilio Phone Numbers DocumentationPhone Numbers

Validation Issue for Authorized Representative
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing Tax ID
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing/Invalid Photo ID
Error
Twilio Phone Numbers DocumentationPhone Numbers

Commercial registration copy not submitted
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid excerpt from the commercial register
Error
Twilio Phone Numbers DocumentationPhone Numbers

Business Details contain an inactive business
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number purchase restricted
Error
Twilio Phone Numbers DocumentationPhone Numbers

Ineligible for business bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

Rejected test bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

The association between business name and website cannot be verified
Error
Twilio Phone Numbers DocumentationPhone Numbers

The Business ID you provided could not be verified
Error
Twilio Phone Numbers DocumentationPhone Numbers

The address could not be verified
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to verify Authorized representative #1
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to verify Authorized representative #2.
Error
Twilio Phone Numbers DocumentationPhone Numbers

The Email domain doesn't match the website domain
Error
Twilio Phone Numbers DocumentationPhone Numbers

Customer Profile or Trust Product is not eligible to be copied
Error
Twilio Phone Numbers DocumentationPhone Numbers

Customer Profile or Trust Product is already copied
Error
Twilio Phone Numbers DocumentationPhone Numbers

Ineligible Business Registration Authority
Error
Twilio Phone Numbers DocumentationPhone Numbers

Customer Profile or Trust Product cannot be copied due to a deleted Address
Error
Twilio Phone Numbers DocumentationPhone Numbers

Authorized Representative Mismatch
Error
Twilio Phone Numbers DocumentationPhone Numbers

LOA Signer Invalid
Error
Twilio API Documentation and Error CodesAPI

Contact with the unique_customer_provided_id provided already exists
Error
Twilio API Documentation and Error CodesAPI

Invalid or missing Contact input
Error

Contact validation error
Error

Invalid contact search request
Error
Twilio Messaging DocumentationMessaging
Twilio General Usage DocumentationGeneral Usage

Contact update failed: invalid JSON or non-updatable field
Error
Twilio API Documentation and Error CodesAPI

When updating a contact at least one field should be updated
Error
Twilio Messaging DocumentationMessaging

Contact requires at least one name, unique_customer_provided_id, or channel
Error

Can fetch contact either by unique_customer_provided_id or channel
Error

Contact with the provided channel value already exists
Error

Only one channel can be set as primary
Error

Invalid channel
Error
Twilio Messaging DocumentationMessaging

Invalid channel type
Error

Invalid channel input
Error

Channel validation error
Error

Maximum number of channels allowed reached
Error

Invalid Channel Description
Error

Channel value can not be updated
Error
Twilio API Documentation and Error CodesAPI

When updating a channel at least one field should be updated
Error

Invalid location type
Error
Twilio API Documentation and Error CodesAPI

Maximum number of locations allowed reached
Error

Invalid location input
Error

Location validation error
Error

Invalid country code
Error

Invalid page size, it must be between 1 and 25 if specified
Error

Invalid page token
Error
Twilio API Documentation and Error CodesAPI

When updating a location at least one field should be updated
Error
Twilio Chat DocumentationChat

Page token must be bigger than or equal to 0
Error

Custom Field provided is not defined
Error

Invalid or missing Custom Field input
Error

Custom Field validation error
Error
Twilio API Documentation and Error CodesAPI
Twilio SendGrid DocumentationSendGrid

Field definition name already exists
Error
Twilio API Documentation and Error CodesAPI

Field definition name exceeded maximum length
Error
Twilio API Documentation and Error CodesAPI

Invalid field type. Supported types: text, date, number
Error
Twilio API Documentation and Error CodesAPI

Number of custom field definitions exceeded limit
Error
Twilio API Documentation and Error CodesAPI

Field definition name cannot be empty
Error
Twilio API Documentation and Error CodesAPI

Input request body is not properly json formatted
Error
Twilio API Documentation and Error CodesAPI

Custom field definition provided is not defined
Error

Internal Server Error
Error
Twilio API Documentation and Error CodesAPI

Invalid page size for custom field definition
Error
Twilio API Documentation and Error CodesAPI

Field definition name cannot be a duplicate of an existing Twilio-defined field
Error
Twilio API Documentation and Error CodesAPI

Expected Unique form key in input request is missing
Error
Twilio API Documentation and Error CodesAPI

Channel update failed: invalid JSON or non-updatable field
Error
Twilio API Documentation and Error CodesAPI

Input request content type is invalid
Error
Twilio API Documentation and Error CodesAPI

Server unavailable or busy

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CodeDescription
Warning

Unknown parameters
Error

Invalid FriendlyName
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM

Permission Denied
Error

Method not allowed
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM
Twilio General Usage DocumentationGeneral Usage
Twilio Phone Numbers DocumentationPhone Numbers

Account not active
Error

Access Denied
Error

Page size too large
Error

Test Credentials
Error

Cannot delete this resource before it is complete
Error

Action disabled for account
Error

Invalid TLS version
Error

Invalid TLSv1.2 Cipher Suite
Error

No update/state change is observed for the data entered
Error

Phone number rejected by T-Mobile SDG Service Provisioning API
Error

Phone number is not correct: it cannot be null or have non-decimal symbols
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM
Twilio Voice DocumentationVoice
Twilio Video DocumentationVideo
Twilio Conversations DocumentationConversations
Twilio Sync DocumentationSync

Invalid Access Token
Error
Twilio API Documentation and Error CodesAPI

Invalid Access Token header
Error
Twilio API Documentation and Error CodesAPI

Invalid Access Token issuer/subject
Warning
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM

Access Token expired or expiration date invalid
Error
Twilio API Documentation and Error CodesAPI
Twilio Video DocumentationVideo

Access Token not yet valid
Error
Twilio API Documentation and Error CodesAPI

Invalid Access Token grants
Error
Twilio API Documentation and Error CodesAPI

Invalid Access Token signature
Error
Twilio API Documentation and Error CodesAPI

Authentication Failed
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM

Invalid Header
Error
Twilio API Documentation and Error CodesAPI

Invalid Issuer Or Subject
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM

Invalid Claim Set
Error
Twilio API Documentation and Error CodesAPI

Expiration Time In The Future
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM

Expired or Invalid Expiration in Token
Error
Twilio API Documentation and Error CodesAPI
Twilio Identity Access Management DocumentationIAM

Expiration Time Exceeds Maximum Time Allowed
Error
Twilio API Documentation and Error CodesAPI

Invalid Signature
Error
Twilio API Documentation and Error CodesAPI

Invalid Token
Error
Twilio Chat DocumentationChat

Programmable Chat: Parameters are not specified for update request
Error
Twilio API Documentation and Error CodesAPI

A conflicting resource update is in progress
Error
Twilio API Documentation and Error CodesAPI

403 Forbidden
Error
Twilio API Documentation and Error CodesAPI

Not Found
Error
Twilio API Documentation and Error CodesAPI

Conflict
Error
Twilio Messaging DocumentationMessaging

Gone
Error

Precondition Failed
Error

Request Entity Too Large
Error

Invalid Parameter
Error

Invalid SID
Error

Upgrade Required
Error
Twilio API Documentation and Error CodesAPI

Too many requests
Error

Internal Server Error
Error

Service unavailable
Error
Twilio Messaging DocumentationMessaging

Twilio Internal Error
Error

Accounts Resource
Error

Subaccounts cannot contain subaccounts
Error
Twilio API Documentation and Error CodesAPI

Reached maximum number of Services
Error

Calls Resource
Error

No Called number specified
Error

Called number is a premium number
Error

International calling not enabled
Error

Call already initiated
Error

Invalid URL
Error
Twilio Voice DocumentationVoice

Invalid SendDigits
Error

Invalid IfMachine
Error

Invalid Timeout
Error

Invalid Method
Error

'From' phone number not verified
Error
Twilio Messaging DocumentationMessaging
Twilio Voice DocumentationVoice

Invalid 'To' Phone Number
Error

Invalid 'From' Number
Error

Caller phone number is required
Error

'To' phone number cannot be reached
Error
Twilio Voice DocumentationVoice

Geo Permission configuration is not permitting call
Error
Twilio Voice DocumentationVoice
Twilio TrustHub DocumentationTrustHub

API: Call blocked by Twilio
Error

Phone number does not appear to be valid
Error

Invalid ApplicationSid
Error

'To' phone number not verified
Error

Invalid call state
Warning

Invalid SipAuthUsername. Must be fewer than 256 chars
Warning

Invalid SipAuthUsername. Illegal chars
Warning

Invalid SipAuthPassword. Must be fewer than 256 chars
Warning

Invalid SipAuthPassword. Illegal chars
Warning

SipAuthPassword is required when providing SipAuthUsername
Warning

SIP calling not enabled for this account
Warning

Headers portion of SIP URI must be fewer than 1024 chars
Warning

Invalid SIP Header. Illegal chars in header name
Warning

Invalid SIP Header. Illegal chars in header value
Error

Maximum Domains Reached
Error

Domain Validation Error
Error

Invalid Domain
Error

Domain still has subdomains
Error
Twilio Voice DocumentationVoice

Invalid Machine Detection configuration value
Error

IP Access Control List Validation Error
Error

IP Access Control List Dependencies Violation
Error

Maximum IP Addresses Reached for List
Error

Address Validation Error
Error

Maximum Credential Lists Reached
Error

Credential List Validation Error
Error

Credential List Dependencies Violation
Error

Maximum Credentials Reached for List
Error

Credential Validation Error
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Maximum Number of Trunks reached
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Trunk Validation Error
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Trunk Dependencies
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Trunk Domain already taken
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Maximum Origination URIs reached
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Trunking CPS change not allowed
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Invalid Region
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Max Connection Policies Reached
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Max Connection Policy Entries Reached
Error

Maximum IP Access Control Lists reached
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Invalid ruleset
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Invalid SIP Manipulation Policy SID
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Invalid SIP Manipulation Policy
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Maximum number of SIP Manipulation Polies per account reached
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Maximum number of actions per rule reached
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Maximum number of conditions per rule reached
Warning
Twilio Voice DocumentationVoice

No AMD status callback URL provided
Warning
Twilio Voice DocumentationVoice

Invalid Answering Machine Detection Parameters
Error

‘From’ phone number not verified
Error
Twilio Messaging DocumentationMessaging

'To' number cannot be a Short Code
Error
Twilio Messaging DocumentationMessaging

'To' and 'From' numbers cannot be the same
Error
Twilio Messaging DocumentationMessaging

Alphanumeric Sender ID cannot be used as the 'From' number on trial accounts
Error
Twilio Messaging DocumentationMessaging

Sending to Premium rate or Information Service numbers is not allowed
Error
Twilio Voice DocumentationVoice

Invalid BYOC trunk SID
Error
Twilio Voice DocumentationVoice

Cannot create application: application limit exceeded
Warning
Twilio Voice DocumentationVoice

Approaching application creation limit
Error

Invalid Phone Number
Error

Invalid Url
Error

Invalid Method
Error

Inbound Phone number not available to trial account
Error

Cannot set VoiceFallbackUrl without setting Url
Error

Cannot set SmsFallbackUrl without setting SmsUrl
Error

This Phone Number type does not support SMS
Error
Twilio Messaging DocumentationMessaging

Message blocked: permissions disabled for the destination region
Error

VoiceCallerIdLookup cannot be set for this phone number
Error

ApplicationSid is not accessible
Error

Phone Number is invalid
Error

PhoneNumber is not available
Error
Twilio Phone Numbers DocumentationPhone Numbers

Number already can be used for outgoing calls and messages
Error

Phone number already validated on your account
Error

Invalid area code
Error

No phone numbers found in area code
Error

Phone number already validated on another account
Error

Invalid CallDelay
Error

Invalid PlayUrl
Error

Invalid CallbackUrl
Error

AreaCode Parameter not Supported
Error

PhoneNumber Provisioning Type Mismatch
Error

Invalid AccountSid
Error

Account does not exist
Error

Account is not active
Error
Twilio Phone Numbers DocumentationPhone Numbers
Twilio Identity Access Management DocumentationIAM

Transfer target AccountSid is not related to the phone number owner
Error

API User must be the parent account to transfer phone numbers.
Error

Unable to update Status, invalid Status.
Error

Unable to update Status for subaccount, parent account is suspended.
Error

Unable to update Status for parent accounts
Error

Unable to update Status for subaccount, subaccount has been suspended by Twilio
Error

Unable to update Status for subaccount, subaccount has been closed.
Error

Reached maximum number of subaccounts
Error
Twilio API Documentation and Error CodesAPI

Invalid PageToken
Error

Resource not available
Error

Invalid callback url
Error

Invalid transcription type
Error

RecordingSid is required.
Error

Phone number is not a valid SMS-capable inbound phone number
Error

Message body is required
Error
Twilio Messaging DocumentationMessaging

A 'From' or 'MessagingServiceSid' parameter is required to send a message
Error

The destination 'To' phone number is required to send an SMS
Error
Twilio Messaging DocumentationMessaging

Maximum body length is 160 characters (old API endpoint)
Error
Twilio Messaging DocumentationMessaging
Twilio Identity Access Management DocumentationIAM

'From' number is not a valid message-capable Twilio number for this account
Error

The 'from' phone number must be the sandbox phone number for trial accounts.
Error

The 'to' phone number provided is not yet verified for this account.
Error
Twilio Messaging DocumentationMessaging

Invalid 'StatusCallback'
Error
Twilio Messaging DocumentationMessaging

Attempt to send to unsubscribed recipient
Error
Twilio Messaging DocumentationMessaging

This 'From' number has exceeded the maximum number of queued messages
Error
Twilio Messaging DocumentationMessaging

Message cannot be sent with the current combination of "To" and/or "From" parameters
Error

PhoneNumber Requires Certification
Error
Twilio Messaging DocumentationMessaging

'To' number is not a valid mobile number
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Requires a Local Address
Error

The 'From' number matches multiple numbers for your account
Error
Twilio Messaging DocumentationMessaging

The concatenated message body exceeds the 1600 character limit
Error

The message body cannot be sent
Error
Twilio Messaging DocumentationMessaging

A Message Body, Media URL or Content SID is required
Error

Invalid media URL(s)
Error

The 'From' number has not been enabled for MMS
Error

MMS has not been enabled for your account
Error

Number of media files exceeds allowed limit
Error
Twilio Messaging DocumentationMessaging

Invalid validity period value
Error

Invalid 'StatusCallbackEvent'
Error
Twilio Messaging DocumentationMessaging

Max Price must be a valid float
Error
Twilio Phone Numbers DocumentationPhone Numbers

Address Validation Error
Error
Twilio Phone Numbers DocumentationPhone Numbers

Address Validation Error - Check Suggested Address
Error
Twilio Phone Numbers DocumentationPhone Numbers

Cannot mutate Address that is linked to a verified Document.
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Requires an Address
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP Trunk is in use for emergency calling
Error
Twilio Messaging DocumentationMessaging

'To' number cannot be a landline
Error
Twilio Phone Numbers DocumentationPhone Numbers

End-User cannot be deleted due to an active assignment to a Bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

Supporting Document cannot be deleted due to active Regulatory Bundle assignment
Error
Twilio Phone Numbers DocumentationPhone Numbers

Supporting Document is not eligible for deletion
Error
Twilio Phone Numbers DocumentationPhone Numbers

Regulatory Bundle is not eligible for deletion
Error
Twilio Phone Numbers DocumentationPhone Numbers

Regulatory Bundle cannot be deleted due to active number assignment
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Requires a Bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Requires a Verified Identity Document
Error
Twilio Phone Numbers DocumentationPhone Numbers

Document does not satisfy regulatory requirement
Error
Twilio Messaging DocumentationMessaging

Maximum subject length is 40 characters
Error

There are more recipient addresses than allowed
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

ContentSid Required
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

The ContentSid is Invalid
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

The ContentVariables Parameter is invalid
Error
Twilio Messaging DocumentationMessaging

The Sender ID is invalid
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

Parameter exceeded character limit
Error
Twilio Messaging DocumentationMessaging

'From' is not a Twilio phone number or Short Code country mismatch
Error
Twilio Messaging DocumentationMessaging

Mismatch between the 'From' number and the account
Error
Twilio Messaging DocumentationMessaging

'From' number is not SMS-capable
Error
Twilio Messaging DocumentationMessaging

Current combination of 'From' and 'To' parameters cannot be used in Ireland region
Error
Twilio Messaging DocumentationMessaging

'From' phone number routing configuration is incorrect
Error
Twilio Messaging DocumentationMessaging

'FallbackFrom' cannot be used with a 'From' sender
Error
Twilio Messaging DocumentationMessaging

Invalid 'FallbackFrom' sender
Error
Twilio Messaging DocumentationMessaging

'FallbackFrom' requires MessagingServiceSid
Error
Twilio Messaging DocumentationMessaging

'FallbackFrom' requires the Messaging Service to have an RCS Sender
Error
Twilio Messaging DocumentationMessaging

Phone number type is not supported for messaging in the Ireland (IE1) region.
Error

The Messaging Service does not exist
Error

The Messaging Service is not available to send new messages
Error
Twilio Messaging DocumentationMessaging

The Messaging Service does not have a phone number available to send a message
Error
Twilio Messaging DocumentationMessaging

The Messaging Service contains no phone numbers
Error
Twilio Messaging DocumentationMessaging

The Messaging Service is invalid
Warning
Twilio Messaging DocumentationMessaging

Alpha Sender ID Missing from the request
Error
Twilio Messaging DocumentationMessaging

Alpha Sender ID is Invalid or Not Authorized for this Messaging Service
Warning
Twilio Messaging DocumentationMessaging

Phone Number Already Exists in Messaging Service
Warning
Twilio Messaging DocumentationMessaging

Sender is not associated with the specified Messaging Service
Error
Twilio Messaging DocumentationMessaging

Phone Number or Short Code is associated with another Messaging Service.
Error
Twilio Messaging DocumentationMessaging

Messaging Service Use Case is Invalid
Error
Twilio Messaging DocumentationMessaging

Messaging Service Number Pool size limit reached
Error
Twilio Messaging DocumentationMessaging

Phone Number Does Not Have Correct Messaging Service Capabilities
Error
Twilio Messaging DocumentationMessaging

Brand Registration SID for US A2P Campaign Use Case is Not Registered or Not Valid
Error
Twilio Messaging DocumentationMessaging

Incompatible Messaging Service/A2P Use Cases
Error
Twilio Messaging DocumentationMessaging

A2P Use Case is Invalid
Error
Twilio Messaging DocumentationMessaging

Cannot import Campaign Verify token due to incompatible A2P brand
Error
Twilio Messaging DocumentationMessaging

Invalid Campaign Verify token
Error
Twilio Messaging DocumentationMessaging

Campaign Verify token import already in progress
Error
Twilio Messaging DocumentationMessaging

Brand update count exceeded
Error
Twilio Messaging DocumentationMessaging

Brand can only be updated when in FAILED state
Error
Twilio Messaging DocumentationMessaging

Starter brand registrations and updates are temporarily disabled
Error
Twilio Messaging DocumentationMessaging

Campaign registration failed due to missing parameter(s)
Error
Twilio Messaging DocumentationMessaging

Campaign registration failed due to length validation failures
Error
Twilio Messaging DocumentationMessaging

Cannot perform operation on suspended campaign
Error
Twilio Messaging DocumentationMessaging

System under maintenance. Please try again later.
Error
Twilio Messaging DocumentationMessaging

Cannot perform operation on suspended brand
Error
Twilio Messaging DocumentationMessaging

Campaign limit reached on the Brand
Warning
Twilio Messaging DocumentationMessaging

Default Messaging Service Not Found
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Domain Ownership Could Not Be Verified
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: 2FA Verification Expired
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: 2FA Email Undeliverable
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: 2FA Verification Failed or Timed Out
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Invalid Brand Contact Email Domain
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: 2FA Code Expired
Error

DltPEId is invalid
Error

DltTemplateId is invalid
Error
Twilio Messaging DocumentationMessaging

InvoiceTag length must be between 0 and 32
Error
Twilio Messaging DocumentationMessaging

Invalid 'From' and 'To' pair. 'From' and 'To' should be of the same channel
Error
Twilio Voice DocumentationVoice

Call timed out
Error
Twilio Voice DocumentationVoice

Call Queue Full
Error
Twilio Phone Numbers DocumentationPhone Numbers

Reached Maximum Verification Attempts
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Hosted Number Order SIDs
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Phone Number
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unsupported Iso Country
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Email Format
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid URL format
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Method
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to Update Authorization Document
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Application SID
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Address SID
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Not Hostable
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Hosted Number Order Status
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to Update Hosted Number Order Status
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Verification Incorrect
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to Verify Code
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Unique Name
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Friendly Name
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Extension
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Verification Document SID
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Capabilities
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Verification Type
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to Transfer Hosted Number
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Authorization Document Status
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to Initiate Verification Call
Error
Twilio Phone Numbers DocumentationPhone Numbers

Not Portable - Unsupported
Error
Twilio Phone Numbers DocumentationPhone Numbers

Not Portable - Already in your Twilio Account
Error
Twilio Phone Numbers DocumentationPhone Numbers

Not Portable - Already in Twilio different owner
Error
Twilio Phone Numbers DocumentationPhone Numbers

Not Portable API - Manual porting available
Error
Twilio Phone Numbers DocumentationPhone Numbers

Error - Internal Server Error
Error
Twilio Phone Numbers DocumentationPhone Numbers

Not Portable - Already in one of your Twilio Accounts
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port is already in progress with one of your Twilio accounts
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Contact support required
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Number with carrier restrictions
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Phone number is inactive or disconnected
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid end user name
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid Address
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid Pin
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid Account Number
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid Subscription Right
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Port Date Rejected
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Not Portable
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid Bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Missing required fields
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Contains numbers for multiple countries
Error
Twilio Phone Numbers DocumentationPhone Numbers

Port In Error - Invalid Address
Error
Twilio Phone Numbers DocumentationPhone Numbers

Configuration Retrieval Error
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid End-User Type or Number Type
Error
Twilio Phone Numbers DocumentationPhone Numbers

No regulation sid found for the given number group
Error
Twilio Phone Numbers DocumentationPhone Numbers

No regulation sid or phone number country and type was provided
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to parse bundle status
Error
Twilio Phone Numbers DocumentationPhone Numbers

Bundle status and properties cannot be updated in the same request
Error
Twilio Phone Numbers DocumentationPhone Numbers

Attempting to assign invalid object_sid to Bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

Attempting to add invalid object type to bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

Unable to parse attributes JSON
Error
Twilio Phone Numbers DocumentationPhone Numbers

Supporting Document status and attributes cannot be updated in the same request
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid status enum in Supporting Document update request
Error
Twilio Phone Numbers DocumentationPhone Numbers

Cannot create a Supporting Document with no Type
Error
Twilio Phone Numbers DocumentationPhone Numbers

Cannot create a Supporting Document with no FriendlyName
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid End-User Type in request
Error
Twilio Phone Numbers DocumentationPhone Numbers

Invalid Number Type in request
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing End User
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing End-User field
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing Supporting Document
Error
Twilio Phone Numbers DocumentationPhone Numbers

Missing Supporting Document field
Error
Twilio Phone Numbers DocumentationPhone Numbers

The Supporting Document field does not match the field in the End-User
Error
Twilio Phone Numbers DocumentationPhone Numbers

An Address is missing
Warning
Twilio Phone Numbers DocumentationPhone Numbers

Emergency address is not registered
Warning
Twilio Phone Numbers DocumentationPhone Numbers

Emergency Status cannot be updated
Error

Regulatory Bundle is not eligible to be Copied
Error
Twilio Phone Numbers DocumentationPhone Numbers

Regulatory Bundle cannot transfer Item Assignments
Error
Twilio Phone Numbers DocumentationPhone Numbers

From Bundle to Replace Items does not exist
Error
Twilio Phone Numbers DocumentationPhone Numbers

Cannot replace Items from Bundle to same Bundle
Error
Twilio Phone Numbers DocumentationPhone Numbers

From Bundle does not meet the latest Regulation requirements
Error
Twilio Phone Numbers DocumentationPhone Numbers

Supporting Document Bundle Assignment cannot be removed
Error
Twilio Phone Numbers DocumentationPhone Numbers

Regulatory Bundle cannot be copied due to a deleted Address
Error
Twilio Phone Numbers DocumentationPhone Numbers

This account is restricted from provisioning new long code phone numbers
Error
Twilio Phone Numbers DocumentationPhone Numbers

The Phone Number cannot be released because it is being ported out of Twilio
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number linked to Active Route Configuration
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Instance fields are not supported within region
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Operation not permitted within Region
Error
Twilio Phone Numbers DocumentationPhone Numbers

Phone Number Operation not permitted within Region
Error
Twilio Phone Numbers DocumentationPhone Numbers

Starter profile creation and updates are temporarily disabled
Error
Twilio Phone Numbers DocumentationPhone Numbers

Twilio phone number using deprecated API version
Error
Twilio Phone Numbers DocumentationPhone Numbers

Regulatory changes necessitate new information
Error
Twilio Phone Numbers DocumentationPhone Numbers

Rejected due to outdated regulatory information
Error
Twilio Phone Numbers DocumentationPhone Numbers

Individual registration phone number limit reached
Warning
Twilio Messaging DocumentationMessaging

Message Redaction Incompatible Configuration: Long code STOP filtering
Warning
Twilio Messaging DocumentationMessaging

Message Redaction Incompatible Configuration: Short code "STOP" filtering
Warning
Twilio Messaging DocumentationMessaging

Message Redaction Incompatible Configuration: Sticky Sender
Warning
Twilio Messaging DocumentationMessaging

Message Redaction Incompatible Configuration: Advanced Opt-Out
Warning
Twilio Messaging DocumentationMessaging

Phone Number Redaction Incompatible Configuration: Fallback to Long Code
Warning
Twilio Messaging DocumentationMessaging

Message Redaction Incompatible Configuration: Inbound Webhook GET Requests
Error

The specified filter for listing organization users is invalid
Error

The provided user's first name is invalid
Error

The provided user's last name is invalid
Error

The provided user's external ID is invalid
Error

The provided user's username is invalid
Error

The SCIM schema syntax is invalid
Error

The organization has reached its limit for managed users
Error

The requested SCIM user was not found
Error

The user's is in an unupdatable status.
Error

The primary email address is missing for the user
Error

The value for the primary email address is invalid
Error

Updating the email address is unsupported
Error

Updating the username is unsupported
Error

The primary email address does not match the username
Error

The SCIM PATCH request is invalid
Error

Updating the organization owner is not allowed
Error

The email domain is unverified
Error

The request is not authorized
Error

Failed to complete request due to a business rule violations
Error

Version conflict in SCIM header
Error

Rate limit exceeded
Error

Duplicate username or externalId
Error

Invalid page token
Error

The organization was not found
Error

The organization's account was not found
Error

The organization's account limit has been reached
Error

The organization's account owner is not a managed user
Error

The organization's account owner was not set during creation
Error

The request is not authorized
Error

Failed to complete request due to a bad request
Error

The Request does not contain any authorization information
Error

Request is rate limited
Error

The scope for role assignments must be a managed account
Error

The identity for role assignments must be a managed user
Error

The role assignment has an invalid role
Error

Listing role assignments requires query parameters

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CodeDescription
Error
Twilio Messaging DocumentationMessaging

Queue overflow
Error
Twilio Messaging DocumentationMessaging

Account suspended
Error
Twilio Messaging DocumentationMessaging

Unreachable destination handset
Error
Twilio Messaging DocumentationMessaging

Message blocked
Error
Twilio Messaging DocumentationMessaging

Unknown destination handset
Error
Twilio Messaging DocumentationMessaging

Landline or unreachable carrier
Error
Twilio Messaging DocumentationMessaging

Message filtered
Error
Twilio Messaging DocumentationMessaging
Twilio Lookup DocumentationLookup

Unknown error
Error
Twilio Messaging DocumentationMessaging

Missing inbound segment
Error
Twilio Messaging DocumentationMessaging

Message price exceeds max price
Error
Twilio Messaging DocumentationMessaging

MMS not supported by the receiving phone number in this region
Error

TTL is too small
Error

TTL is too big
Error

'To' attributes are Invalid
Error

Non-supported channel type is used
Error

'To' and 'From' channel types are incompatible
Error
Twilio Messaging DocumentationMessaging

Carrier network congestion
Warning
Twilio Messaging DocumentationMessaging

Destination carrier requires sender ID pre-registration
Error
Twilio Messaging DocumentationMessaging

Content size exceeds carrier limit
Error
Twilio Messaging DocumentationMessaging

Internal Failure with Message Scheduling
Error
Twilio Messaging DocumentationMessaging

Internal Failure with messaging service orchestrator
Error
Twilio Messaging DocumentationMessaging

US A2P 10DLC - Rate Limits Exceeded
Error
Twilio Messaging DocumentationMessaging

US A2P 10DLC - Daily Message Cap Reached
Error
Twilio Messaging DocumentationMessaging

Numeric Sender ID Not Provisioned on Carrier
Warning
Twilio Messaging DocumentationMessaging

US A2P 10DLC - 50% T-Mobile Daily Message Limit Consumed
Warning
Twilio Messaging DocumentationMessaging

US A2P 10DLC - 70% T-Mobile Daily Message Limit Consumed
Error
Twilio Messaging DocumentationMessaging

US A2P 10DLC - T-Mobile Daily Message Limit Reached
Error
Twilio Messaging DocumentationMessaging

Invalid API version
Error
Twilio Messaging DocumentationMessaging

Invalid ContentRetention
Error
Twilio Messaging DocumentationMessaging

Invalid AddressRetention
Error
Twilio Messaging DocumentationMessaging

Invalid MaxRate
Error
Twilio Messaging DocumentationMessaging

Toll-Free Number Has Not Been Verified
Error
Twilio Messaging DocumentationMessaging

US A2P 10DLC - Campaign Suspended
Error
Twilio Messaging DocumentationMessaging

US A2P 10DLC - Message from an Unregistered Number
Error
Twilio Messaging DocumentationMessaging

US A2P 10DLC - Message from a number still being configured
Error
Twilio Messaging DocumentationMessaging

Validity Period Expired
Error
Twilio Messaging DocumentationMessaging

Outbound Messaging Disabled
Error
Twilio Messaging DocumentationMessaging

OTP Message Body Filtered
Warning
Twilio Messaging DocumentationMessaging

Filtered to Prevent Message Loops
Error
Twilio Messaging DocumentationMessaging

Destination carrier requires Sender ID pre-registration
Error
Twilio Messaging DocumentationMessaging

Sender is restricted or unregistered in a country requiring registration
Error
Twilio Messaging DocumentationMessaging

Alphanumeric Sender ID is generic or unauthorized for this account
Error
Twilio Messaging DocumentationMessaging

International SMS via Domestic Gateway
Error
Twilio Messaging DocumentationMessaging

Trial Message Length Exceeded
Warning
Twilio Messaging DocumentationMessaging

Validity Period is less than zero or greater than maximum allowed
Error
Twilio Messaging DocumentationMessaging
Twilio RCS DocumentationRCS

Message delivery not confirmed
Error
Twilio Messaging DocumentationMessaging

Failed to schedule message for a compliant time window
Error
Twilio Messaging DocumentationMessaging

Domain SID is invalid
Error
Twilio Messaging DocumentationMessaging

Domain is unverified
Error
Twilio Messaging DocumentationMessaging

TLS certificate for your Domain has expired.
Error
Twilio Messaging DocumentationMessaging

Links not shortened due to application failure.
Warning
Twilio Messaging DocumentationMessaging

Shortened link not found. Click redirected to fallback Url
Warning
Twilio Messaging DocumentationMessaging

Shortened link not found and no fallback URL found
Error
Twilio Messaging DocumentationMessaging

Domain has not been set up for this account
Error
Twilio Messaging DocumentationMessaging

Domain private certificate has not been uploaded
Error
Twilio Messaging DocumentationMessaging

Twilio account does not belong to an organization
Error
Twilio Messaging DocumentationMessaging

Callback URL is invalid
Error
Twilio Messaging DocumentationMessaging

Domain is blocked
Error
Twilio Messaging DocumentationMessaging

Url is on a deny list
Error

Account is not found
Error
Twilio Messaging DocumentationMessaging

Specified date is too old
Error
Twilio Messaging DocumentationMessaging

Specified date is not available yet
Error
Twilio Messaging DocumentationMessaging

Date format is incorrect
Error
Twilio Messaging DocumentationMessaging

Certificate or private key or both are missing
Error
Twilio Messaging DocumentationMessaging

Certificate cannot be parsed
Error
Twilio Messaging DocumentationMessaging

Private key is invalid
Error
Twilio Messaging DocumentationMessaging

Certificate and private key pair is invalid
Error
Twilio Messaging DocumentationMessaging

Domain certificate and private key are not uploaded
Error
Twilio Messaging DocumentationMessaging

Fallback URL is missing
Error
Twilio Messaging DocumentationMessaging

Fallback URL is invalid
Error
Twilio Messaging DocumentationMessaging

Callback URL is missing
Error
Twilio Messaging DocumentationMessaging

MessagingServiceSID cannot be empty or null
Warning
Twilio Messaging DocumentationMessaging

Your phone number could not be registered with US A2P 10DLC
Error
Twilio Messaging DocumentationMessaging

Your 10DLC number failed to be registered
Error
Twilio Messaging DocumentationMessaging

MessagingServiceSID is invalid.
Error
Twilio Messaging DocumentationMessaging

MessagingServiceSidsAction is invalid
Error
Twilio Messaging DocumentationMessaging

Certificate is self signed
Error
Twilio Messaging DocumentationMessaging

Messaging Service SID already belongs in another domain configuration.
Warning
Twilio Messaging DocumentationMessaging

Domain's certificate will expire soon
Error
Twilio Messaging DocumentationMessaging

Certificate cannot be validated.
Error
Twilio Messaging DocumentationMessaging

The certificate could not be uploaded.
Error
Twilio Messaging DocumentationMessaging

Invalid Dns Setup for Link shortening
Error
Twilio Messaging DocumentationMessaging

Unable to issue certificate
Error
Twilio Messaging DocumentationMessaging

Unable to renew certificate
Error

Domain messaging service mapping not found
Error
Twilio Messaging DocumentationMessaging

URL not valid for link shortening
Error
Twilio Messaging DocumentationMessaging

Certificates with OCSP required are not supported
Error
Twilio Messaging DocumentationMessaging

Parameters are not valid
Error
Twilio Messaging DocumentationMessaging

Not Found
Error
Twilio Messaging DocumentationMessaging

This message cannot be canceled
Error
Twilio Messaging DocumentationMessaging

Provider Timeout Error
Error
Twilio Messaging DocumentationMessaging

Invalid Phone Number SID
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Edit time expired
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Unknown Error
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification rejection - Disallowed: SHAFT - Sex
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification rejection - Disallowed: Spam
Error
Twilio Messaging DocumentationMessaging

Toll-Free verification rejection - Disallowed: Loan Marketing
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Fraud
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Could not validate business information
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in not sufficient: express consent required
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - phone number not provisioned to Twilio
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification rejection - Age Gate
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - URL issues in sample message
Error
Twilio Messaging DocumentationMessaging

Message delivery blocked
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification unable to process - address invalid
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification unable to process - email invalid
Error
Twilio Messaging DocumentationMessaging

Message couldn't be delivered
Error
Twilio Messaging DocumentationMessaging

Account exceeded the messages limit
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification rejection - Disallowed: SHAFT - Hate
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: SHAFT - Alcohol
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: SHAFT - Firearms
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: SHAFT - Tobacco / Vape
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Cannabis/CBD
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Third Party Debt Collection
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Gambling
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Sweepstakes
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Stock Alerts/Platforms
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Cryptocurrency
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Risk Investment/Get Rich Quick Schemes
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed - Debt Reduction
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Credit Repair
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Third-party Lead Generation
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Illegal substances/articles
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - High Risk: Deceptive Marketing
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - High Risk - Non-secured URL in sample message
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Could not verify Business
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Cannot validate business website URL
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Need end business
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Cannot combine messaging consent with service requirement
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in not provided
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Third-party information sharing not allowed
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - single phone number used for multiple businesses
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Justification required for more than 5 numbers
Error
Twilio Messaging DocumentationMessaging

Toll-Free phone number verification rejection - Disallowed - Phishing
Error
Twilio Messaging DocumentationMessaging

Toll Free verification - Requested Cancellation
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Business email requires an official domain
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Contact must be a business representative
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Business name and office record mismatch
Error
Twilio Messaging DocumentationMessaging

Message couldn't be delivered
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - HELP keyword response must meet requirements
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Charity must provide 501(c)(3) verification
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - DBA name must be accurately provided
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Website must be established and active
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Social platform must be established and active
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Website is password protected or requires login
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Business website URL must display branding
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Privacy policy or terms URL missing or inaccessible
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - ISV or reseller name must be provided
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Projected message volume exceeds use case limits
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Use case and use case summary inconsistent
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in workflow must match submission details
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Message content doesn't align with use case
Error
Twilio Messaging DocumentationMessaging

Twilio Internal Error
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Political campaigns require a Campaign Verify token
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Political campaigns must submit FEC ID
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Confirmation message missing required details
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Single opt-in cannot cover multiple use cases
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in must be optional, not required
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-ins must clearly reflect end business
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in does not match use case
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Pre-selected opt-in checkbox is not allowed
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in URL not accessible
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in example must be complete and branded
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Verbal consent script must be provided
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Age gate required for age-restricted content
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in not sufficient: Language Unclear
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Valid opt-in required for all submissions
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Double opt-in required for this use case
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Shopping cart reminders must follow specific guidelines
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Call-to-action missing required disclosures
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Privacy policy required for personal data collection
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Privacy policy mentions sharing opt-in data
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Opt-in data cannot be shared with third parties
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - SMS terms must be accessible and compliant
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - High-risk domain reputation
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Potential fraud risk
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Public URL shorteners not allowed
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - High-risk domain issues
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Business Registration Number is Missing or Invalid
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Disallowed: Non-federally compliant use case
Error
Twilio Messaging DocumentationMessaging

Toll Free rejection: Alcohol promotions require age verification
Error
Twilio Messaging DocumentationMessaging

Toll Free verification rejection - Official business registration documents required
Error
Twilio Messaging DocumentationMessaging

Toll-Free verification rejection - HELP keyword response must meet requirements
Error
Twilio Messaging DocumentationMessaging

Message couldn't be delivered
Error
Twilio Messaging DocumentationMessaging

Message couldn't be delivered
Error
Twilio Messaging DocumentationMessaging

Message couldn't be delivered
Error
Twilio Messaging DocumentationMessaging

Attempt to send to unsubscribed recipient
Error
Twilio Messaging DocumentationMessaging

Message couldn't be delivered
Error
Twilio Messaging DocumentationMessaging

Failed to Upsert Consent
Error
Twilio Messaging DocumentationMessaging

Failed to Upsert Contact
Error
Twilio Messaging DocumentationMessaging

Geo Permissions update restricted for subaccounts
Error
Twilio Messaging DocumentationMessaging

Failed to Update Geo Permissions
Error
Twilio Messaging DocumentationMessaging

Advanced messaging features are not available in this region.
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Invalid input parameters
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Registration not found
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Duplicate record detected
Error

Subscribers Must Be Opted In When Providing an Opt-In Message
Error
Twilio Messaging DocumentationMessaging

Deleting a Brand with Active Campaigns is Not Allowed
Error

Deleting a Brand with Active Brand Sharing is Not Allowed
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Max registration limit reached
Error
Twilio Messaging DocumentationMessaging

Invalid Vetting Token
Error

Vetting Token Rejected by TCR
Error
Twilio Messaging DocumentationMessaging

Vetting Token Not Allowed for Sole Proprietor Brands
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Country code not allowed
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Sole Proprietor brands are not enabled
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Address duplicate threshold reached
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Phone number duplicate threshold reached
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Email address duplicate threshold reached
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Mobile phone number duplicate threshold reached
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Unsupported mobile phone number
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Invalid or expired OTP
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Unsupported email address
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Invalid postal address
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Unsupported country code
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Obfuscation check failure
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Missing Business Registration Number
Error
Twilio Messaging DocumentationMessaging

Unknown Error Code
Error
Twilio Messaging DocumentationMessaging

US A2P Registration: Insufficient Permissions to Perform Operation
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Internal system error
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: Temporary system error
Error
Twilio Messaging DocumentationMessaging

Brand Registration Failure: General error
Error
Twilio Messaging DocumentationMessaging
Twilio TrustHub DocumentationTrustHub

Brand Registration Failure: Validation problems with connected bundles
Error
Twilio Messaging DocumentationMessaging

US A2P Registration: General error
Error
Twilio Messaging DocumentationMessaging

Brand Registration: Tax ID data mismatch
Error
Twilio Messaging DocumentationMessaging

Brand Registration: Entity type or stock information mismatch
Error
Twilio Messaging DocumentationMessaging

Brand Registration: Must be a U.S. government entity to register as government
Error
Twilio Messaging DocumentationMessaging

Brand Registration Feedback: No IRS 501c tax-exempt status found.
Error
Twilio Messaging DocumentationMessaging

Brand Registration: Unable to verify registration details
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Business email requires an official domain
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Contact must be a business representative
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Business name and office record mismatch
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Official business registration documents required
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Need end business
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Could not validate business information
Error
Twilio Messaging DocumentationMessaging

Verification rejection - single phone number used for multiple businesses
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Justification required for more than 5 numbers
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Could not verify Business
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Charity must provide 501(c)(3) verification
Error
Twilio Messaging DocumentationMessaging

Verification rejection - DBA name must be accurately provided
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Business Registration Number is Missing or Invalid
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Website must be established and active
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Social platform must be established and active
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Website is password protected or requires login
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Cannot validate business website URL
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Business website URL must display branding
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Privacy policy or terms URL missing or inaccessible
Error
Twilio Messaging DocumentationMessaging

Verification rejection - ISV or reseller name must be provided
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Projected message volume exceeds use case limits
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Use case and use case summary inconsistent
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Use case summary is incomplete
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in workflow must match submission details
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Message content doesn't align with use case
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Edit time expired
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Age Gate
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Political campaigns require a Campaign Verify token
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Political campaigns must submit FEC ID
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Confirmation message missing required details
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Single opt-in cannot cover multiple use cases
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Cannot combine messaging consent with service requirement
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in not sufficient: express consent required
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in must be optional, not required
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-ins must clearly reflect end business
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in does not match use case
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Pre-selected opt-in checkbox is not allowed
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in URL not accessible
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in example must be complete and branded
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Verbal consent script must be provided
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Third-party information sharing not allowed
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Age gate required for age-restricted content
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in not sufficient: Language Unclear
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in not provided
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Valid opt-in required for all submissions
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Double opt-in required for this use case
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Shopping cart reminders must follow specific guidelines
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Call-to-action missing required disclosures
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Privacy policy required for personal data collection
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Privacy policy mentions sharing opt-in data
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Opt-in data cannot be shared with third parties
Error
Twilio Messaging DocumentationMessaging

Verification rejection - SMS terms must be accessible and compliant
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Spam
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Fraud
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed - Phishing
Error
Twilio Messaging DocumentationMessaging

Verification rejection - High-risk domain reputation
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Potential fraud risk
Error
Twilio Messaging DocumentationMessaging

Verification rejection - High Risk: Deceptive Marketing
Error
Twilio Messaging DocumentationMessaging

Verification rejection - URL issues in sample message
Error
Twilio Messaging DocumentationMessaging

Verification rejection - High Risk - Non-secured URL in sample message
Error
Twilio Messaging DocumentationMessaging

Verification rejection - High-risk domain issues
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Cannabis/CBD
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Illegal substances/articles
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Loan Marketing
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Third Party Debt Collection
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Gambling
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Sweepstakes
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Stock Alerts/Platforms
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Cryptocurrency
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Risk Investment/Get Rich Quick Schemes
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Debt Reduction
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Credit Repair
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Third-party Lead Generation
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: Non-federally compliant use case
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: SHAFT - Sex
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: SHAFT - Hate
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: SHAFT - Alcohol
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Alcohol promotions require age verification
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: SHAFT - Firearms
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Disallowed: SHAFT - Tobacco / Vape
Error
Twilio Messaging DocumentationMessaging

Verification rejection - Phone number not provisioned to Twilio
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Unknown Error
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Invalid Brand Support Email
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Terms & Conditions
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Content Violation
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Spam/Phishing
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - High Risk
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Invalid Campaign Description
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Opt-out Error
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Age Gate Not Present / Not Acceptable
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Embedded Phone Number
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Subscriber Help
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Invalid Website URL
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Invalid Sample Message - Public URL Shorteners
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Inconsistency between Sample Message and Use-case
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Invalid Brand Information
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Direct Lending - Campaign and Content Attribute Error
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Opt-in Error
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Disallowed Content
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Excessive EIN
Error
Twilio Messaging DocumentationMessaging

Campaign registration failed due to carrier rejection(s)
Error
Twilio Messaging DocumentationMessaging

Campaign rejection - The campaign use case is ineligible for registration.
Error
Twilio Messaging DocumentationMessaging

Campaign rejection - The campaign registration request timed out.
Error
Twilio Messaging DocumentationMessaging

Campaign rejection - A DCA2 rejected this campaign registration request.
Error
Twilio Messaging DocumentationMessaging
Twilio TrustHub DocumentationTrustHub

Campaign rejection - Incorrect Sole Prop Brand Registration
Error
Twilio Messaging DocumentationMessaging

Campaign Not Shared with Twilio
Error
Twilio Messaging DocumentationMessaging

Campaign Review Pending by Twilio
Error
Twilio Messaging DocumentationMessaging

Campaign Rejected by Twilio
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Website URL Validation Issue
Error
Twilio Messaging DocumentationMessaging

Campaign vetting rejection - Compliant Privacy Policy Required
Error
Twilio Messaging DocumentationMessaging

Campaign rejected: Message Flow or Call to Action incomplete/unverified
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: A2P 10DLC campaigns must be submitted in English
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Duplicate template text; each field must be unique
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: A2P 10DLC is for application-to-person messaging only
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Marketing and informational consent must be separate
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: sole proprietor campaign title does not match sole proprietor name
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Sole proprietor must use individual's name, not business name
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Use case mismatch between lead generation and lead nurture
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: All opt-in methods must include complete workflow descriptions
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: DBA name does not match the legal business name on file
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Website lacks sufficient business or messaging use case info
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Website is only a form; insufficient business context
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Website requires authentication and cannot be reviewed
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Website does not meet campaign verification requirements
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Message consent cannot be required for service use
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Missing or non-compliant consent agreement language in opt-in flow
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Opt-in must be unchecked by default; active consent required
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Multiple companies cannot share a single campaign
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Opt-in evidence is for a different company
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Social influencer/public figure use case not permitted
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Emergency alert notifications are not a permitted use case
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Brand campaign limit of 100 reached
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Opt-in process must allow consumers to decline
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Privacy policy must disclose third-party data sharing
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign registration rejected: Privacy Policy URL is required for A2P 10DLC campaign registration
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign registration rejected: Terms and Conditions URL is required for A2P 10DLC campaign registration
Error
Twilio Messaging DocumentationMessaging

Verification - Requested Cancellation
Error
Twilio Messaging DocumentationMessaging

Verification rejection - HELP keyword response must meet requirements
Error
Twilio Messaging DocumentationMessaging

Phone number association rejection - Phone number limit exceeded for registration
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Cannabis, CBD, or illegal substance content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Prescription drug or controlled substance content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Loan marketing content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Third-party debt collection content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Gambling or betting content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Sweepstakes or contest content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Stock alert content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Cryptocurrency content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: High-risk investment content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Debt reduction or consolidation content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Credit repair content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Third-party lead generation or MLM content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Non-federally compliant use case detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: sex or adult content violation detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: hate speech or violent content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: alcohol promotion content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: alcohol content without required age verification detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: firearms or explosives content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: tobacco or vape content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: fraudulent or misleading content detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: known phishing campaign detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: high-risk domain reputation detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: deceptive marketing practices detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: public URL shortener detected in campaign
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: non-secured URL (http://) detected
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Business email must use official domain
Error
Twilio Messaging DocumentationMessaging
Twilio Phone Numbers DocumentationPhone Numbers

Campaign rejected: Contact must be an authorized business representative
Error
Twilio Messaging DocumentationMessaging

Campaign Suspension
Error
Twilio Messaging DocumentationMessaging

Campaign Registration Failed
Error
Twilio Messaging DocumentationMessaging

Campaign Registration Failed
Error
Twilio Messaging DocumentationMessaging

Campaign Registration Failed
Error
Twilio Messaging DocumentationMessaging

Campaign Registration Failed
Error
Twilio Messaging DocumentationMessaging

Messaging Service size limit reached
Error
Twilio Voice DocumentationVoice

Generic error
Error
Twilio Voice DocumentationVoice

Application not found.
Error
Twilio Voice DocumentationVoice

Connection declined.
Error
Twilio Voice DocumentationVoice

Connection timeout
Error
Twilio Voice DocumentationVoice

Connection error
Error
Twilio Voice DocumentationVoice

Audio device error
Error
Twilio Voice DocumentationVoice

Twilio Client: Voice JavaScript SDK version not supported
Error
Twilio Voice DocumentationVoice

Call cancelled
Error
Twilio Voice DocumentationVoice

Transport error
Error
Twilio Voice DocumentationVoice

Malformed request
Error
Twilio Voice DocumentationVoice

Missing parameter array in request
Error
Twilio Voice DocumentationVoice

Authorization token missing in request
Error
Twilio Voice DocumentationVoice

Length of parameters cannot exceed MAX_PARAM_LENGTH.
Error
Twilio Voice DocumentationVoice

Invalid bridge token.
Error
Twilio Voice DocumentationVoice

Invalid client name
Error
Twilio Voice DocumentationVoice

Invalid data
Error
Twilio Voice DocumentationVoice

Twilio Client: Error occurred while accessing microphone
Error
Twilio Voice DocumentationVoice

Signature validation failed.
Error
Twilio Voice DocumentationVoice

No valid account.
Error
Twilio Voice DocumentationVoice

Invalid JWT token.
Error
Twilio Voice DocumentationVoice

JWT token has expired
Error
Twilio Voice DocumentationVoice

Rate exceeded authorized limit.
Error
Twilio Voice DocumentationVoice

JWT token expiration interval is too long
Error
Twilio Voice DocumentationVoice

User denied access to microphone.
Error
Twilio Voice DocumentationVoice

Reconnect attempt error.
Error
Twilio Voice DocumentationVoice

Call Message Event Type is invalid.
Error
Twilio Voice DocumentationVoice

Call is not in the expected state.
Error
Twilio Voice DocumentationVoice

Call Message Event Payload size exceeded authorized limit.
Error
Twilio Voice DocumentationVoice

Registration error
Error
Twilio Voice DocumentationVoice

Unsupported Cancel Message Error
Error
Twilio Voice DocumentationVoice

Bad Request
Error
Twilio Voice DocumentationVoice

UserMedia Permission Denied
Error
Twilio Voice DocumentationVoice

UserMedia Acquisition Failed
Error
Twilio Voice DocumentationVoice

Forbidden
Error
Twilio Voice DocumentationVoice

Not Found
Error
Twilio Voice DocumentationVoice

Request Timeout
Error
Twilio Voice DocumentationVoice

Conflict
Error
Twilio Voice DocumentationVoice

Upgrade Required
Error
Twilio Voice DocumentationVoice

Too Many Requests
Error
Twilio Voice DocumentationVoice

Temporarily Unavailable
Error
Twilio Voice DocumentationVoice

Call/Transaction Does Not Exist
Error
Twilio Voice DocumentationVoice

Address Incomplete
Error
Twilio Voice DocumentationVoice

Busy Here
Error
Twilio Voice DocumentationVoice

Request Terminated
Error
Twilio Voice DocumentationVoice

Internal Server Error
Error
Twilio Voice DocumentationVoice

Bad Gateway
Error
Twilio Voice DocumentationVoice

Service Unavailable
Error
Twilio Voice DocumentationVoice

Gateway Timeout
Error
Twilio Voice DocumentationVoice

DNS Resolution Error
Error
Twilio Voice DocumentationVoice

Busy Everywhere
Error
Twilio Voice DocumentationVoice

Decline
Error
Twilio Voice DocumentationVoice

Does Not Exist Anywhere
Error
Twilio Voice DocumentationVoice

Stream - Unknown Error
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Connection Timeout
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Connection Refused
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Connection Broken Pipe
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Host Unreachable
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - SSL Protocol Error
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Handshake Error
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Close Error
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - URL Schema Not Supported
Error
Twilio Voice DocumentationVoice

Stream - WebSocket - Malformed URL
Error
Twilio Voice DocumentationVoice

Stream - Websocket - Protocol Error
Warning
Twilio Voice DocumentationVoice

Stream - Media - Buffer Overflow
Warning
Twilio Voice DocumentationVoice

Stream - Media - Media Discarded
Error
Twilio Voice DocumentationVoice

Stream - Invalid connectorName attribute in TwiML.
Error
Twilio Voice DocumentationVoice

Stream - Invalid Track configuration
Error
Twilio Voice DocumentationVoice

Stream - Invalid connector configuration
Warning
Twilio Voice DocumentationVoice

Stream - Protocol - Malformed Message
Warning
Twilio Voice DocumentationVoice

Stream - Protocol - Invalid Message
Error
Twilio Voice DocumentationVoice

Stream Extension not found:
Warning
Twilio Voice DocumentationVoice

Stream - Media - RTP timeout
Error
Twilio Voice DocumentationVoice

Stream Extension: Unsupported status
Error
Twilio Voice DocumentationVoice

Stream Extension: Unsupported operation
Error
Twilio Voice DocumentationVoice

Stream - Quota exceeded
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Trunk CPS limit exceeded
Warning
Twilio Voice DocumentationVoice

SIP: Dial failure - Twilio SIP Domain not found
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Voice calling has been disabled for this account
Warning

SIP: Too many hops
Warning
Twilio Voice DocumentationVoice

SIP: Too many endpoints/bindings for the Address-of-record (AOR)
Warning
Twilio Voice DocumentationVoice

SIP: Registration per second limit reached
Warning
Twilio Voice DocumentationVoice

The user you tried to dial is not registered with the corresponding SIP Domain
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: No valid Origination URIs configured
Warning
Twilio Elastic SIP Trunking DocumentationSIP Trunking

Error communicating with your SIP communications infrastructure
Warning
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Parent account pooled Trunking CPS limit exceeded
Error
Twilio Voice DocumentationVoice

SIP: Parent account SIP Interface CPS limit exceeded
Warning
Twilio Voice DocumentationVoice

Call is terminated because of no audio received
Warning
Twilio Voice DocumentationVoice

Call is terminated due to exceeding maximum call duration
Error

PSTN PDD timeout
Error

PSTN: Carrier blocked call due to calling number (caller ID)
Error
Twilio Voice DocumentationVoice

Twiml size exceeded maximum allowed value
Warning
Twilio Voice DocumentationVoice

Twiml and Voice URL are both set. Using Voice URL.
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking
Twilio Voice DocumentationVoice

SHAKEN/STIR call verification failed due to invalid passport from customer
Warning
Twilio Elastic SIP Trunking DocumentationSIP Trunking
Twilio Voice DocumentationVoice

SHAKEN/STIR call verification failed
Error
Twilio Voice DocumentationVoice

ACK not received from your SIP endpoint
Warning
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Trial accounts can only call verified caller IDs
Warning
Twilio Voice DocumentationVoice

SIP: Invalid phone number
Warning

SIP: Bad SDP
Warning
Twilio Voice DocumentationVoice

SIP: Empty body
Warning
Twilio Voice DocumentationVoice

SIP: Invalid contact header
Error
Twilio Voice DocumentationVoice

SIP: Authentication Error
Warning

SIP: URI is formatted incorrectly
Warning

SIP: Invalid header name
Warning

SIP: Invalid header value
Warning

SIP: Header name is not allowed
Warning

SIP: Unsupported parameter value
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

X-Branded-CallReason header contains an invalid value.
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Insufficient permissions
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Source IP address not in ACL
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Bad user credentials
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking
Twilio TrustHub DocumentationTrustHub
Twilio Voice DocumentationVoice

SIP: Call blocked by Twilio
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: 'From' phone number not verified
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP Trunking: Geo Permission configuration is not permitting call
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Invalid From number (caller ID)
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Secure media not accepted
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Secure media required
Error

SIP: Secure transport required
Error
Twilio Voice DocumentationVoice

SIP: Register not supported
Warning
Twilio Voice DocumentationVoice

SIP: Registration Authentication problem
Warning
Twilio Voice DocumentationVoice

SIP: Invalid <Dial><Sip>
Warning
Twilio Voice DocumentationVoice

Dial failure calling a SIP Domain without specifying a region
Error

SIP: SIP Address is on a deny list
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Transfer not allowed
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

SIP: Redirect failed
Error
Twilio Voice DocumentationVoice

Specifying an edge is not allowed when dialing SIP registered endpoints
Error
Twilio Voice DocumentationVoice

Dialing SIP Endpoint failure - No devices registered in specified edge
Error
Twilio Elastic SIP Trunking DocumentationSIP Trunking

TLS version not allowed
Error
Twilio Voice DocumentationVoice

There is no username in the SIP URI when calling a SIP registered endpoint
Warning
Twilio Interconnect DocumentationInterconnect

Interconnect: Invalid Connection (TNX) SID
Warning
Twilio Interconnect DocumentationInterconnect

Interconnect: Connection (TNX) SID not found
Warning
Twilio Interconnect DocumentationInterconnect

Interconnect: Multiple SIP Dials with Interconnect Connection (TNX) SID
Warning
Twilio Interconnect DocumentationInterconnect

Interconnect: Connection (TNX) SID is not Active
Error
Twilio Voice DocumentationVoice

BYOC Trunk routing failure - failover routing disabled.
Warning
Twilio Voice DocumentationVoice

BYOC Trunk routing failure - failover to Twilio default routing.
Error
Twilio Voice DocumentationVoice

Voice Conversation: Generic error.
Error
Twilio Voice DocumentationVoice

Voice Conversation: TwiML attributes validation error.
Warning
Twilio Voice DocumentationVoice

Voice Conversation: Callback event internal error.
Warning
Twilio Voice DocumentationVoice

Voice Conversation: Callback event response error.
Error
Twilio Voice DocumentationVoice
Twilio Conversations DocumentationConversations

Voice Conversation: Incomplete Conversation.
Error
Twilio Voice DocumentationVoice

Voice Conversation: Invalid data inside existing conversation.
Error
Twilio Voice DocumentationVoice

Voice Conversation: Failed to get worker assigned to a newly created Conversation.
Error
Twilio Voice DocumentationVoice

Virtual Agent: Configuration Error
Error
Twilio Voice DocumentationVoice

Virtual Agent: Provider Error
Error
Twilio Voice DocumentationVoice

Virtual Agent: Invalid Connector
Warning
Twilio Voice DocumentationVoice

Virtual Agent: Unsupported <Config> attribute(s) in TwiML
Error
Twilio Voice DocumentationVoice

Virtual Agent: Internal Error
Error
Twilio Voice DocumentationVoice

Virtual Agent: PCI Error
Error
Twilio Voice DocumentationVoice

Virtual Agent: Resume Error
Error
Twilio Voice DocumentationVoice

Real-time Transcriptions: Configuration Error
Error
Twilio Voice DocumentationVoice

Real-time Transcriptions: Provider Error
Warning
Twilio Voice DocumentationVoice

Real-time Transcriptions: Unsupported <Config> attribute(s) in TwiML
Error
Twilio Voice DocumentationVoice

Real-time Transcriptions: Internal Error
Error
Twilio Voice DocumentationVoice

Real-time Transcriptions: PCI Error
Warning
Twilio Voice DocumentationVoice

Real-time Transcriptions: Intelligence Service Unreachable
Warning

Conversation Relay & Intelligence Language Mismatch
Error
Twilio Voice DocumentationVoice

Voice User-Defined Message: Internal Twilio Error
Warning
Twilio Voice DocumentationVoice

Voice User-Defined Message: Invalid Content-Type
Warning
Twilio Voice DocumentationVoice

Voice User-Defined Message: Invalid Content
Warning
Twilio Voice DocumentationVoice

Voice User-Defined Message: Content body exceeded max length
Warning
Twilio Voice DocumentationVoice

Voice User-Defined Message: Subscription Callback Internal Error
Warning
Twilio Voice DocumentationVoice

Voice User-Defined Message: Request to subscription callback URL encountered error
Error
Twilio Voice DocumentationVoice

Provisioning Failure
Error
Twilio Internet of Things DocumentationIoT

Generic Error
Error
Twilio Internet of Things DocumentationIoT

Service is unavailable
Error
Twilio Internet of Things DocumentationIoT

Conflicting update
Error
Twilio Internet of Things DocumentationIoT

Invalid Parameter Value
Error
Twilio Internet of Things DocumentationIoT

Parameter missing
Error
Twilio Internet of Things DocumentationIoT

Paging information invalid
Error
Twilio Internet of Things DocumentationIoT

Configuration incomplete
Error
Twilio Internet of Things DocumentationIoT

Transition invalid
Error
Twilio Internet of Things DocumentationIoT

SIM not found
Error
Twilio Internet of Things DocumentationIoT

Rate Plan not found
Error
Twilio Internet of Things DocumentationIoT

Command exceeded max length
Error
Twilio Internet of Things DocumentationIoT

Number of Commands exceeded
Error
Twilio Internet of Things DocumentationIoT

SIM connectivity reset not allowed
Error
Twilio Internet of Things DocumentationIoT

SIM connectivity reset in progress
Error
Twilio Internet of Things DocumentationIoT

Invalid Parameter Combination
Error
Twilio Internet of Things DocumentationIoT

Rate Plan Is Not Allowed
Error
Twilio Internet of Things DocumentationIoT

Unauthorized
Error
Twilio Internet of Things DocumentationIoT

Messaging not allowed
Error
Twilio API Documentation and Error CodesAPI

Callee Busy
Error
Twilio API Documentation and Error CodesAPI

Callee did not answer
Error
Twilio API Documentation and Error CodesAPI

Error during fax transmission
Error
Twilio API Documentation and Error CodesAPI

Programmable Fax is no longer available
Error
Twilio API Documentation and Error CodesAPI

No Fax TwiML action specified
Error
Twilio API Documentation and Error CodesAPI

Other End Incompatible
Error
Twilio Messaging DocumentationMessaging

SendAt timestamp is missing
Error
Twilio Messaging DocumentationMessaging

Scheduling does not support this timestamp
Error
Twilio Messaging DocumentationMessaging

Scheduling does not support this timestamp
Error
Twilio Messaging DocumentationMessaging

Scheduling does not support this timestamp
Error
Twilio Messaging DocumentationMessaging

MessagingServiceSid is required to schedule a message
Error
Twilio Messaging DocumentationMessaging

Maximum limit reached in the account for scheduling messages
Error
Twilio Messaging DocumentationMessaging

The ScheduleType value provided is not supported for this channel
Error
Twilio Messaging DocumentationMessaging

'Messages' Body and ContentVariables cannot be provided together
Error
Twilio Messaging DocumentationMessaging

Bulk : Provided Attributes JSON is not valid
Error
Twilio Messaging DocumentationMessaging

Invalid 'Messages' array provided in the request
Error
Twilio Messaging DocumentationMessaging

`Messages` array contains duplicate `To` numbers.
Error
Twilio Messaging DocumentationMessaging

Broadcast SID Not Found
Error
Twilio Messaging DocumentationMessaging

Broadcast Request Limit Reached
Error
Twilio Messaging DocumentationMessaging

Broadcast Upload File Size Exceeded
Error
Twilio Messaging DocumentationMessaging

Error Retrieving File
Error
Twilio Messaging DocumentationMessaging

Broadcast File Type Invalid
Error
Twilio Messaging DocumentationMessaging

Broadcast Cannot Be Canceled
Error
Twilio Messaging DocumentationMessaging

Broadcast Upload Status Check Failure
Error
Twilio Messaging DocumentationMessaging

Invalid Page Token
Error
Twilio Messaging DocumentationMessaging

Stats for Broadcast SID Not Found
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Call permission not granted by consumer
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Outbound calls are not supported in this region
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Calling is not enabled on the business number
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Duplicated call
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Call rate limit exceeded
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Could not change calling status on the WhatsApp Sender
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Max business-initiated calls to this number in 24 hours reached
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Business-initiated calling is not available in the country
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Outbound call fails due to invalid from number
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Voice application not configured
Error
Twilio Voice DocumentationVoice

WhatsApp Voice: Voice Call Permanent Permission Exists

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CodeDescription
Error
Twilio TaskRouter DocumentationTaskRouter

Content-Type of 'application/json' not set
Warning
Twilio TaskRouter DocumentationTaskRouter

Assignment Instruction response is not valid JSON. Ensure it is not escaped
Warning
Twilio TaskRouter DocumentationTaskRouter

Assignment Callback response does not contain Instruction
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Reject
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Call
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Call
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Call
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Call
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Call
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Direct
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Direct
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Direct
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Redirect
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Dequeue
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Dequeue
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Dequeue
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Dequeue
Error
Twilio TaskRouter DocumentationTaskRouter

Dequeue Instruction does not have a valid 'status_callback_events' parameter
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Dequeue
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Conference
Error
Twilio TaskRouter DocumentationTaskRouter

Missing 'to' parameter when issuing Conference instruction
Error
Twilio TaskRouter DocumentationTaskRouter

Missing 'from' parameter when issuing Conference instruction
Error
Twilio TaskRouter DocumentationTaskRouter

Failed to issue Conference Instruction due to invalid ActivitySid
Error
Twilio TaskRouter DocumentationTaskRouter

Failed to issue Dequeue instruction due to missing 'call_sid' property
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Conference
Error
Twilio TaskRouter DocumentationTaskRouter

Conference instruction failed: missing 'call_sid' or 'outbound_to'
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Conference
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Conference
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Conference
Error
Twilio TaskRouter DocumentationTaskRouter

Failed to issue Supervise Instruction due to invalid Reservation state
Error
Twilio TaskRouter DocumentationTaskRouter

Supervise instruction failed: missing or invalid 'contact_uri'
Error
Twilio TaskRouter DocumentationTaskRouter

Failed to issue Supervise instruction due to missing ‘from’ property
Error
Twilio TaskRouter DocumentationTaskRouter

Failed to issue Conference instruction due to missing ‘conference_sid’
Error
Twilio TaskRouter DocumentationTaskRouter

TaskRouter->Invalid instruction
Error
Twilio TaskRouter DocumentationTaskRouter

Invalid Queue for Known Worker
Warning
Twilio TaskRouter DocumentationTaskRouter

Absolute Paging used when iterating TaskRouter resources
Error
Twilio TaskRouter DocumentationTaskRouter

Invalid Known Worker information
Error
Twilio TaskRouter DocumentationTaskRouter

Invalid Workspace for Known Worker
Error
Twilio TaskRouter DocumentationTaskRouter

Dequeue Instruction does not have a valid 'status_callback_url' parameter
Error
Twilio TaskRouter DocumentationTaskRouter

Call Instruction does not have a valid 'status_callback_url' parameter
Error
Twilio TaskRouter DocumentationTaskRouter

Conference Instruction does not have a valid 'status_callback_url' parameter
Error
Twilio Flex DocumentationFlex

General Service Error
Error
Twilio Flex DocumentationFlex

Authentication Error
Error
Twilio Flex DocumentationFlex

Authorization Error
Error
Twilio Flex DocumentationFlex

Validation Error
Error
Twilio Flex DocumentationFlex

Service Unavailable
Error
Twilio Flex DocumentationFlex

Resource Not Found
Error
Twilio Flex DocumentationFlex

Resource Conflict Error
Error
Twilio Flex DocumentationFlex

Unprocessable Request
Error
Twilio Flex DocumentationFlex

Configuration Error
Error
Twilio Flex DocumentationFlex

Rate Limit Exceeded
Error
Twilio Flex DocumentationFlex

Authentication error - Missing User Attributes
Error
Twilio Flex DocumentationFlex

Configuration Not Found
Error
Twilio Flex DocumentationFlex

Collision On Configuration Change
Error
Twilio Flex DocumentationFlex

Workspace Not Configured
Error
Twilio Flex DocumentationFlex

Skills Limit Exceeded
Error
Twilio Flex DocumentationFlex

Resource Not Found
Error
Twilio Flex DocumentationFlex

Resource Already Exists
Error
Twilio Flex DocumentationFlex

Requested Chat User not found
Warning
Twilio Flex DocumentationFlex

Requested Flex Chat Channel is not found
Error
Twilio Flex DocumentationFlex

Requested Flex Flow is not found
Warning
Twilio Flex DocumentationFlex

Chat User is already a member of the Chat Channel
Error
Twilio Flex DocumentationFlex

Chat User per Chat Channel limit reached. User is part of too many Chat Channels.
Warning
Twilio Flex DocumentationFlex

Chat Channel with this unique name already exists
Error
Twilio Flex DocumentationFlex

Adding user to Chat Channel timed out
Error
Twilio Flex DocumentationFlex

Flex Flow creation failed
Error
Twilio Flex DocumentationFlex

Provided identity is reserved by system
Error
Twilio Flex DocumentationFlex

Flex Flow creation failed
Error
Twilio Flex DocumentationFlex

Error occurred when connecting to a Meeting Participant
Warning
Twilio Flex DocumentationFlex

Participant was disconnected before setting up Meeting
Warning
Twilio Flex DocumentationFlex

Participant was busy
Error
Twilio Flex DocumentationFlex

Internal timeout error
Warning
Twilio Flex DocumentationFlex

No answer from Participant
Warning
Twilio Flex DocumentationFlex

Meeting was canceled
Warning
Twilio Flex DocumentationFlex

Add Participant Not Allowed
Warning
Twilio Flex DocumentationFlex

Add Participant Not Allowed
Error
Twilio Flex DocumentationFlex

Modify Participant Not Allowed
Error
Twilio Flex DocumentationFlex

Participant Not Found
Error
Twilio Flex DocumentationFlex

Remove Participant Request Failed
Error
Twilio Flex DocumentationFlex

Transfer Failed
Error
Twilio Flex DocumentationFlex

An unexpected error occurred.
Error
Twilio Flex DocumentationFlex

Invalid Channel Participant properties.
Error
Twilio Flex DocumentationFlex

Failed to create an outbound Channel.
Warning
Twilio Flex DocumentationFlex

A duplicate create Channel request was dropped.
Error
Twilio Flex DocumentationFlex

Cannot create a Channel for a closed Conversation.
Error
Twilio Flex DocumentationFlex

Failed to create a channel. No Participants found.
Error
Twilio Flex DocumentationFlex

Failed to create a channel. Downstream error.
Error
Twilio Flex DocumentationFlex

Downstream error configuring Channel.
Error
Twilio Flex DocumentationFlex

Failed to close Channel. Missing status parameter.
Error
Twilio Flex DocumentationFlex

Failed to close Channel. Invalid status parameter.
Error
Twilio Flex DocumentationFlex

Failed to close or delete Conversation. Downstream error.
Error
Twilio Flex DocumentationFlex

Failed to add Participant. Downstream error.
Warning
Twilio Flex DocumentationFlex

Failed to remove Participant. Not found.
Error
Twilio Flex DocumentationFlex

Failed to remove Participant. Downstream error.
Error
Twilio Flex DocumentationFlex

Failed to create Channel. Invalid request parameters.
Error
Twilio Flex DocumentationFlex

Failed to add Participant. Invalid request parameters.
Warning
Twilio Flex DocumentationFlex

Failed to delete Channel. Not found.
Error
Twilio Flex DocumentationFlex

Failed to create inbound Channel. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to create outbound Channel. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to close Channel. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to add Participant. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to remove Participant. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to delete Channel. Internal error.
Warning
Twilio Flex DocumentationFlex

Failed to delete Channel. Invalid Account sid.
Warning
Twilio Flex DocumentationFlex

Failed to add a participant. Conversation was closed or not found.
Error
Twilio Flex DocumentationFlex

Account SID not authorized.
Error
Twilio Flex DocumentationFlex

Failed to inactivate Channel. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to inactivate Channel. Downstream error.
Error
Twilio Flex DocumentationFlex

Failed to activate Channel. Internal error.
Error
Twilio Flex DocumentationFlex

Failed to activate Channel. Downstream error.
Warning
Twilio Flex DocumentationFlex

RTA feed callback returned not successful response code
Warning
Twilio Flex DocumentationFlex

RTA feed callback response time exceeded the threshold
Error
Twilio Flex DocumentationFlex

Flex UI error
Error
Twilio Flex DocumentationFlex

Custom Flex UI error
Error
Twilio Flex DocumentationFlex

Unexpected error occurred. Unable to process WebChat request.
Error
Twilio Flex DocumentationFlex

Unexpected error occurred. Service unavailable.
Warning
Twilio Flex DocumentationFlex

Failed to create webchat participant. Unauthorized
Warning
Twilio Flex DocumentationFlex

Failed to create webchat participant. Invalid request parameters.
Warning
Twilio Flex DocumentationFlex

Failed to create webchat participant. Too many requests
Error
Twilio Flex DocumentationFlex

Pre-engagement data too large.
Error
Twilio Flex DocumentationFlex

Pre-engagement data is not in valid JSON format.
Error
Twilio Flex DocumentationFlex

Failed to create webchat conversation. Account not authorized
Error
Twilio Flex DocumentationFlex

Failed to create webchat conversation. A resource provided could not be found.
Error
Twilio Flex DocumentationFlex

Invalid or missing parameters in the create conversation request.
Error
Twilio Flex DocumentationFlex

Unable to validate address configuration. Auto create data missing.
Error
Twilio Flex DocumentationFlex

Failed to validate address configuration. Auto create not enabled.
Error
Twilio Flex DocumentationFlex

Failed to validate address configuration. Auto create type is empty or invalid.
Error
Twilio Flex DocumentationFlex

Unable to validate address configuration. Auto create studio flow SID missing.
Error
Twilio Flex DocumentationFlex

Unable to validate address configuration. Auto create webhook URL missing.
Error
Twilio Flex DocumentationFlex

Address configuration data not found
Error
Twilio Flex DocumentationFlex

Failed to create InteractionChannel. Downstream Error.
Error
Twilio Flex DocumentationFlex

Failed to create InboundConversation. Internal Error.
Warning
Twilio Flex DocumentationFlex

Failed to perform operation. Required header is either missing or incorrect.
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to create token.
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to refresh token.
Warning
Twilio Flex DocumentationFlex

Failed to refresh token. Invalid token provided.
Error
Twilio Flex DocumentationFlex

Failed to fetch Configuration for deployment key.
Warning
Twilio Flex DocumentationFlex

Address Configuration not found for deployment key.
Warning
Twilio Flex DocumentationFlex

Configuration not found for provided Deployment Key.
Warning
Twilio Flex DocumentationFlex

Operation failed: too many concurrent API requests
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to create deployment key.
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to delete deployment key.
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to get deployment keys.
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to delete deployment keys.
Error
Twilio Flex DocumentationFlex

Internal Error. Failed to update deployment key.
Warning
Twilio Flex DocumentationFlex

Deployment key is already linked to other address configuration sid.
Warning
Twilio Flex DocumentationFlex

Max deployment keys limit reached for this account.
Warning
Twilio Flex DocumentationFlex

Friendly name must be between 1 and 64 characters long.
Warning
Twilio Flex DocumentationFlex

Operation failed: conflict with current resource state
Warning
Twilio Flex DocumentationFlex

Support Access Token Generated
Error
Twilio Flex DocumentationFlex

Error processing SCIM request - internal server error
Warning
Twilio Flex DocumentationFlex

Error processing SCIM request - client error
Error
Twilio Voice DocumentationVoice

Invalid Request Body
Error
Twilio Voice DocumentationVoice

Invalid Schema
Error
Twilio Voice DocumentationVoice

Invalid Unique Name
Error
Twilio Voice DocumentationVoice

Configuration Not Found
Error
Twilio Voice DocumentationVoice

Invalid Use of Unique Name
Error
Twilio Voice DocumentationVoice

Internal Error
Error
Twilio Voice DocumentationVoice

Forbidden Access
Warning
Twilio Voice DocumentationVoice

TwiML/API attributes ignored
Error

Invalid request payload
Warning

Callback URL is not set
Error

Callback URL is invalid
Error

Callback returned an invalid response
Error

Callback returned an error
Error

Callback failed due to timeout
Error

Custom Routing Callback failed to execute successfully
Error

Custom Routing Callback failed due to an internal error
Error

Frontline user conversation limit exceeded
Error

Contact conversation limit exceeded
Error

Outgoing conversation: Invalid contact address
Error

Outgoing conversation: Invalid proxy address
Error

Outgoing conversation: Proxy address equals contact address
Error

Outgoing conversation: Unauthorized use of the proxy address
Error

Outgoing conversation: Contact address type does not match proxy address type
Error

Outgoing conversation: Proxy address is not WhatsApp-enabled sender
Error
Twilio Conversations DocumentationConversations

Outgoing conversation already exists for this contact and proxy address
Error

Outgoing conversation: Missing Messaging service
Error

Outgoing conversation: Invalid contact identity
Error

Internal service error
Error
Twilio Flex DocumentationFlex

Profile Connector Installation Not Found
Error
Twilio Flex DocumentationFlex

Credentials Malformed

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CodeDescription
Error
Twilio Chat DocumentationChat

Programmable Chat: FriendlyName not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Account SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Resource is being deleted
Error
Twilio Chat DocumentationChat

Programmable Chat: Friendly name too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Unique Name too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid Account SID
Error
Twilio Chat DocumentationChat

Programmable Chat: Service Instance not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Service SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid consumption interval format
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid typing indicator format
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid webhook format
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid webhook method
Error
Twilio Chat DocumentationChat

Programmable Chat: Webhook disabled processing of command
Error
Twilio Chat DocumentationChat

Programmable Chat: Webhook call failed to execute successfully
Error
Twilio Chat DocumentationChat

Programmable Chat: Notification template too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Notification sound name too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid user channels limit format
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid channel members limit format
Error
Twilio Chat DocumentationChat

Programmable Chat: Actions per second limit exceeded
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid webhook retry count
Error

Programmable Chat: Service instance unique name invalid
Error

Programmable Chat: Service instance with provided unique name already exists
Error
Twilio Chat DocumentationChat

Global actions per second limit exceeded
Error
Twilio Chat DocumentationChat

Webhook failed to execute successfully due to timeout
Error
Twilio Chat DocumentationChat

Invalid pre-webhook url
Error
Twilio Chat DocumentationChat

Invalid post-webhook url
Error
Twilio Chat DocumentationChat

Programmable Chat: Role not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel role not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Deployment role not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Role SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Permission not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid role type
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel creator role not found
Error
Twilio Chat DocumentationChat

Programmable Chat: User not authorized for command
Error
Twilio Chat DocumentationChat

Conversation role not found
Error
Twilio Chat DocumentationChat

Programmable Chat: User not found
Error
Twilio Chat DocumentationChat

Programmable Chat: User already exists
Error
Twilio Chat DocumentationChat

Programmable Chat: User SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Identity reserved
Error
Twilio Chat DocumentationChat

Programmable Chat: Identity not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: User unauthorized to set role
Error
Twilio Chat DocumentationChat

Programmable Chat: Identity should not match user SID pattern
Error
Twilio Chat DocumentationChat

Programmable Chat: Identity too long
Error
Twilio Chat DocumentationChat

Programmable Chat: User channel limit exceeded
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid binding type
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid notification level
Error
Twilio Chat DocumentationChat

Identity parameter not acceptable for this Participant
Error
Twilio Chat DocumentationChat

Programmable Chat: User already invited
Error
Twilio Chat DocumentationChat

Conflicting user modification
Error
Twilio Chat DocumentationChat

User conversation limit exceeded
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel key not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Unknown channel command
Error
Twilio Chat DocumentationChat

Programmable Chat: Attributes too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Attributes not valid JSON
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Unique name should not match channel SID pattern
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel with provided unique name already exists
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid Date Created parameter
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid Date Updated parameter
Error
Twilio Chat DocumentationChat

Programmable Chat: Author parameter is too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel webhook not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Too many channel webhooks
Error
Twilio Chat DocumentationChat

Programmable Chat: Too many channel webhook triggers
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid channel webhook sid
Error
Twilio Chat DocumentationChat

Invalid channel webhook type
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid channel webhook filter
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid channel webhook trigger
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid channel webhook flow sid
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel webhook type not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel webhook url not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel webhook filter not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel webhook trigger not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel webhook url too long
Error
Twilio Chat DocumentationChat

Channel deletion operation is in progress
Error
Twilio Chat DocumentationChat

Messaging service SID not provided
Error
Twilio Chat DocumentationChat

Invalid messaging service SID
Error
Twilio Chat DocumentationChat

Messaging service does not belong to account
Error
Twilio Chat DocumentationChat

Parameters are missing for channel update request
Error
Twilio Chat DocumentationChat

Conflicting channel modification
Error
Twilio Chat DocumentationChat

Conversation not found
Error
Twilio Chat DocumentationChat

Conversation SID not provided
Error

Conversation with provided unique name already exists
Error
Twilio Chat DocumentationChat

Conversation webhook not found
Error
Twilio Chat DocumentationChat

Too many conversation webhooks
Error
Twilio Chat DocumentationChat

Too many conversation webhook triggers
Error
Twilio Chat DocumentationChat

Invalid conversation webhook SID
Error
Twilio Chat DocumentationChat

Invalid conversation webhook type
Error
Twilio Chat DocumentationChat

Invalid conversation webhook filter
Error
Twilio Chat DocumentationChat

Invalid conversation webhook trigger
Error
Twilio Chat DocumentationChat

Invalid conversation webhook flow SID
Error
Twilio Chat DocumentationChat

Conversation webhook type not provided
Error
Twilio Chat DocumentationChat

Conversation webhook URL not provided
Error
Twilio Chat DocumentationChat

Conversation webhook filter not provided
Error
Twilio Chat DocumentationChat

Conversation webhook trigger not provided
Error
Twilio Chat DocumentationChat

Conversation webhook URL is too long
Error
Twilio Chat DocumentationChat

No Messaging Service assigned to Conversation
Error
Twilio Chat DocumentationChat

'State' field can't be empty
Error
Twilio Chat DocumentationChat

TimeToInactive should be greater or equal to 1 minute
Error
Twilio Chat DocumentationChat

TimeToClosed should be greater or equal to 10 minutes
Error
Twilio Chat DocumentationChat

Can't update conversation as it's in final closed state
Error
Twilio Chat DocumentationChat

'State' parameter value is invalid
Error
Twilio Chat DocumentationChat

TimeToInactive format is invalid
Error
Twilio Chat DocumentationChat

TimeToClosed format is invalid
Error
Twilio Chat DocumentationChat

Timer can't be set without state
Error
Twilio Chat DocumentationChat

Initial state can't be 'closed
Error
Twilio Chat DocumentationChat

Conversations are disabled in this region
Error

Conversation in 'initializing' state may not be updated or used for message sending
Error
Twilio Chat DocumentationChat

Unique name should not match conversation sid pattern
Error
Twilio Chat DocumentationChat

Conflicting conversation modification
Error
Twilio Chat DocumentationChat

PreWebhookTimeout should be greater than 0ms
Error
Twilio Chat DocumentationChat

Type value should be 'private'.
Error

EndDate parameter should be greater than StartDate parameter
Error
Twilio Chat DocumentationChat

Programmable Chat: User not member of channel
Error
Twilio Chat DocumentationChat

Programmable Chat: Member SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Member not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Channel member limit exceeded
Error
Twilio Chat DocumentationChat

Programmable Chat: Member already exists
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid last consumption timestamp format
Error
Twilio Chat DocumentationChat

Programmable Chat: Invalid last consumed message index format
Error
Twilio Chat DocumentationChat

Invalid messaging binding address
Error
Twilio Chat DocumentationChat

Invalid participant proxy address
Error
Twilio Chat DocumentationChat

Participant address equals proxy address
Error
Twilio Chat DocumentationChat

Participant address is empty
Error
Twilio Chat DocumentationChat

Participant proxy address is empty
Error
Twilio Chat DocumentationChat

Account is not authorized to use proxy address
Error
Twilio Chat DocumentationChat

Participant address type does not match proxy address type
Error
Twilio Chat DocumentationChat

Proxy address is not WhatsApp enabled sender
Error
Twilio Chat DocumentationChat

Participant and proxy address pair is already in use
Error
Twilio Chat DocumentationChat

Participants limit exceeded
Error
Twilio Chat DocumentationChat

Non-Chat participants limit exceeded
Error
Twilio Chat DocumentationChat

Conflicting member modification
Error
Twilio Conversations DocumentationConversations

Messaging Binding type does not support the provided parameters
Error
Twilio Chat DocumentationChat

Invalid last read message index format
Error
Twilio Chat DocumentationChat

Non-chat conversation participants limit exceeded
Error

One of the JSON requests for participant creation is invalid.
Error

Participant and proxy address pairs for one or more participants already in use.
Error

Request contains too many participants.
Error

Errors occurred during multiple participants creation.
Error
Twilio Chat DocumentationChat

Participant is not a member of conversation
Error
Twilio Chat DocumentationChat

Participant SID not provided
Error
Twilio Chat DocumentationChat

Participant not found
Error
Twilio Chat DocumentationChat

Participant already exists
Error
Twilio Chat DocumentationChat

Participant projected address not provided
Error
Twilio Chat DocumentationChat

Group MMS activation failed.
Error
Twilio Chat DocumentationChat

Participant limit exceeded for group conversation
Error
Twilio Chat DocumentationChat

Group Participant already exists
Error
Twilio Chat DocumentationChat

Group conversation with given participant list already exists
Error
Twilio Chat DocumentationChat

Account is not authorized to use the projected address
Error
Twilio Chat DocumentationChat

Failed to remove the proxy address of a participant.
Error
Twilio Chat DocumentationChat

Failed to add a proxy address to a participant.
Error
Twilio Chat DocumentationChat

Failed to remove the projected address of a participant.
Error
Twilio Chat DocumentationChat

Failed to add a projected address to a participant.
Error
Twilio Chat DocumentationChat

Failed to add an identity to a participant.
Error
Twilio Chat DocumentationChat

Conflicting channel modification
Error
Twilio Chat DocumentationChat

Only one identifier allowed for lookup: use either Identity or Address
Error

Group MMS is not enabled for this Account
Error

Proxy Address of participant is not supported for this channel
Error
Twilio Chat DocumentationChat

Programmable Chat: Message not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Message SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Message index not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Message body not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Message body parameter is too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Last Updated By parameter is too long
Error
Twilio Chat DocumentationChat

Programmable Chat: Media SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Media not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Media already sent with another message
Error
Twilio Chat DocumentationChat

Programmable Chat: Media message body cannot be updated
Error
Twilio Chat DocumentationChat

Invalid message media SID
Error
Twilio Chat DocumentationChat

Invalid message media content type
Error
Twilio Chat DocumentationChat

Message media size is too large
Error
Twilio Chat DocumentationChat

Message author should be among Group MMS participants.
Error

Conflicting message modification
Error
Twilio Chat DocumentationChat

Programmable Chat: Message index is not a number
Error

Invalid content SID
Error

Invalid content variables format
Error

Content SID is missing
Error

Content variables are too long
Warning

Channel Metadata not found
Error

Not Authorized to make this request
Error

Failed to create Channel Metadata
Error

Failed to parse ChannelMetadata Json
Error

Failed to Read ChannelMetadata
Error

Content variable key is too long
Error

Content variable value is too long
Error

Unsupported Content Template Type
Error
Twilio Chat DocumentationChat

Programmable Chat: Invite SID not provided
Error
Twilio Chat DocumentationChat

Programmable Chat: Invite not found
Error
Twilio Chat DocumentationChat

Programmable Chat: Cannot decline invite when already channel member.
Warning
Twilio Chat DocumentationChat

Address configuration deleted
Warning
Twilio Chat DocumentationChat

Address data cleaned up
Error

Virtual Agent provider is invalid.
Error

Only one Virtual Agent participant is allowed per conversation.
Error

Verify Agent participant must not have identity or address fields
Error

DialogflowCX provider must contain module sid and addon sid.
Error

Provided addon sid should have prefix XB.
Error

Provided module sid should have prefix XE.
Error

Updating Virtual Agent participant information is not allowed.
Error

Virtual Agent participant creation is not available for your account.
Error

ChatbotConfiguration.FriendlyName is required parameter.
Error

ChatbotConfiguration.FriendlyName is invalid.
Error

ChatbotConfiguration.InitialContext is invalid.
Error

ChatbotConfiguration.FriendlyName is reserved.
Error

Conversation Export failed
Error

Transcript creation failed
Error

Client Connection: Connections resource limit exceeded
Error

Client Connection: Request rate limit exceeded
Error

Client Connection: identity too long
Error

Client Connection: endpoint_id too long
Error

Client Connection: Command or keepalive acknowledgement not received
Error

Client Connection: Connection expired
Error

Client Connection: Token authentication is rejected
Error

Twilsock: Service instance not found
Error

Twilsock: Service instance SID not specified
Error

Twilsock: Token doesn't contain required grants section
Error

Twilsock: Token doesn't contain service instance
Error

Twilsock: Token doesn't contain identity
Error

Twilsock: Active product doesn't match with service instance product
Error

Twilsock: Service can't be used
Error

Twilsock: Service instance disabled
Error

Twilsock: Service instance is under legal hold
Error

Twilsock: Token contains multiple grants of same product
Error

Twilsock: Service instance limit reached
Error

Twilsock: Product usage disabled
Error

Twilsock: Product usage is not enabled
Error

Twilsock: Invalid access token header
Error

Twilsock: Invalid access token subject
Error

Twilsock: Invalid access token grants
Error

Twilsock: Invalid access token signature
Error

Twilsock: Invalid claim set
Error

Twilsock: Token expired
Error

Twilsock: Token is not valid yet
Error

Twilsock: Token expiration time exceeds maximum
Error

Twilsock: Authentication failed
Error

Twilsock: Upstream not resolved
Error

Twilsock: Too many connections
Error

Twilsock: Too many updates
Error

Twilsock: DNC limit has been reached
Error

Twilsock: PNC limit has been
Error

Twilsock: Too many messages per connection
Error

Twilsock: Too many messages per account
Error

Twilsock: Token is invalid!
Error

Twilsock: Authentication failed
Error
Twilio Conversations DocumentationConversations

Twilsock : CPS, Init per Account
Error

Twilsock : CPS, Too many requests
Error

Twilsock: Unauthorized
Error

Internal notification error
Error

Invalid destination binding
Error

Invalid Credential Sid
Error

Invalid Credential Type
Error

Credential SID not specified
Error

Invalid credential content
Error

Internal error when sending notification via client connection
Warning

Client connection not created or closed
Error

Internal error when sending notification via mqtt client connection
Warning

Client mqtt connection not created or closed
Error

Invalid GCM Api Key or FCM Secret
Error

Invalid GCM/FCM registration token
Error

GCM/FCM client uninstalled or turned off notifications
Error

Mismatched GCM/FCM sender ID
Error

Invalid GCM/FCM package name
Error

Notification too large for GCM/FCM
Error

Invalid custom key for GCM/FCM
Error

GCM/FCM device message rate exceeded
Error

GCM/FCM unauthorized error
Error

GCM/FCM service unavailable
Error

GCM/FCM unknown error
Error
Twilio Notify DocumentationNotify

Service account does not have permission to send FCM messages
Warning

Legacy FCM server key credential used to send notifications
Error
Twilio Notify DocumentationNotify

Deprecated GCM/FCM API is used to send notifications
Error
Twilio Notify DocumentationNotify

FCM Bad Request
Error

Invalid APNs credentials
Error

Invalid APNs device token size
Error

Invalid APNs device token
Error

Missing subject in APNs certificate
Error

Missing payload for APNs delivery
Error

Invalid size of subject in APNs certificate
Error

APNs payload too large
Error

APN service shutdown
Error

Unknown APNs error
Error

The provided APNs device token has been unregistered
Error

The provided APNs device token is not correct
Error
Twilio Voice DocumentationVoice
Twilio Verify DocumentationVerify

The push notification was rejected by APNs
Error

APNs experienced an internal error
Error

Failed to authenticate with APNs
Warning

Too many APNs provider token updates
Error

Expired APNs provider token used
Error

Invalid APNs provider token used
Error

Empty Credentials
Error

Credentials do not belong to used account
Error

Incorrect URL used to retrieve Webhook Credentials
Error

No Credentials found for the supplied Binding Type
Error

No Credentials found for the supplied Identifier
Error

Webhook Credentials endpoint responded with Internal Error
Error

Invalid Webhook Credentials response
Error

Webhook Credentials request timed out
Error

Too many Webhook Credential requests
Error

Webhook Credentials request signature was not verified
Warning

Unexpected Binding Type used for Webhook Credentials request
Warning

Unexpected Identifier used for Webhook Credentials request
Warning

Unexpected error response received for Webhook Credentials request
Error

Too many SMS notification requests
Error

Messaging Service not specified
Error

Too many Facebook messenger notification requests
Error

Facebook page is not connected to Twilio
Error

Missing body for Facebook Messenger delivery attempt
Error

Too many Alexa notifications
Error

Missing Alexa skill ID
Error

Invalid Alexa user ID
Error

Alexa skill is not connected to Twilio
Error

Missing Title parameter for Alexa
Warning

Resulted destination list for requested parameters is empty
Error

Too many recipients
Warning

Concurrent User update
Warning

User already exists
Warning

User already belongs to the segment
Error

Cannot delete User resource with Bindings
Warning

No users with provided segments
Error

Channel provider replied with an error
Error
Twilio Notify DocumentationNotify

Notification TTL has expired
Error
Twilio Notify DocumentationNotify

Delivery callback invocation failed
Error
Twilio Notify DocumentationNotify

Exceeded maximum iterations in template rendering
Warning

Too many notification log events
Error
Twilio Notify DocumentationNotify

General rendering problem with variables in a parsed template
Error
Twilio Notify DocumentationNotify

Provided text template in the notification request cannot be parsed
Error
Twilio Notify DocumentationNotify

Undefined variable within the notification payload template
Error
Twilio Video DocumentationVideo

Signaling connection error
Error
Twilio Video DocumentationVideo

Signaling connection disconnected
Error
Twilio Video DocumentationVideo

Signaling connection timed out
Error
Twilio Video DocumentationVideo

Client received an invalid signaling message
Error
Twilio Video DocumentationVideo

Client sent an invalid signaling message
Error
Twilio Video DocumentationVideo

Video server is busy
Error
Twilio Video DocumentationVideo

Room name is invalid
Error
Twilio Video DocumentationVideo

Room name is too long
Error
Twilio Video DocumentationVideo

Room name contains invalid characters
Error
Twilio Video DocumentationVideo

Unable to create Room
Error
Twilio Video DocumentationVideo

Unable to connect to Room
Error
Twilio Video DocumentationVideo

Room contains too many Participants
Error
Twilio Video DocumentationVideo

Room not found
Error
Twilio Video DocumentationVideo

MaxParticipants is out of range
Error
Twilio Video DocumentationVideo

RoomType is not valid
Error
Twilio Video DocumentationVideo

Timeout is out of range
Error
Twilio Video DocumentationVideo

StatusCallbackMethod is invalid
Error
Twilio Video DocumentationVideo

StatusCallback is invalid
Error
Twilio Video DocumentationVideo

Status is invalid
Error
Twilio Video DocumentationVideo

Room creation failed
Error
Twilio Video DocumentationVideo

Room Completed Error
Error
Twilio Video DocumentationVideo

The concurrent Rooms quota was exceeded
Error
Twilio Video DocumentationVideo

Invalid Recording Rule(s)
Warning
Twilio Video DocumentationVideo

Approaching room or participant concurrency quota
Error
Twilio Video DocumentationVideo

The recording operation requested is not supported for the Room type
Error
Twilio Video DocumentationVideo

MaxParticipantDuration is out of range
Error
Twilio Video DocumentationVideo

The AudioOnly flag is not supported for the Room type
Error
Twilio Video DocumentationVideo

The track kind is not supported by the Room
Error
Twilio Video DocumentationVideo

Legacy room type no longer supported
Error
Twilio Video DocumentationVideo

audioOnly no longer supported
Error
Twilio Video DocumentationVideo

Participant identity is invalid
Error
Twilio Video DocumentationVideo

Participant identity is too long
Error
Twilio Video DocumentationVideo

Participant identity contains invalid characters
Error
Twilio Video DocumentationVideo

Room has reached the maximum number of published tracks
Error
Twilio Video DocumentationVideo

Participant not found
Error
Twilio Video DocumentationVideo

Participant disconnected because of duplicate identity
Error
Twilio Video DocumentationVideo

The Participant concurrency quota was exceeded
Error
Twilio Video DocumentationVideo

MaxPublishedTracks is out of range
Error
Twilio Video DocumentationVideo

Participant's bandwidth profile configuration is invalid
Error
Twilio Video DocumentationVideo

Participant status is invalid
Error
Twilio Video DocumentationVideo

Invalid Subscribe Rule(s)
Error
Twilio Video DocumentationVideo

Participant session length exceeded
Error
Twilio Video DocumentationVideo

maxAudioTracks or maxVideoTracks configuration is out of range
Error
Twilio Video DocumentationVideo

Track is invalid
Error
Twilio Video DocumentationVideo

Track name is invalid
Error
Twilio Video DocumentationVideo

Track name is too long
Error
Twilio Video DocumentationVideo

Track name contains invalid characters
Error
Twilio Video DocumentationVideo

Track name is duplicated
Error
Twilio Video DocumentationVideo

Client is unable to create or apply a local media description
Error
Twilio Voice DocumentationVoice

Server is unable to create or apply a local media description
Error
Twilio Video DocumentationVideo

Client is unable to apply a remote media description
Error
Twilio Video DocumentationVideo

Server is unable to apply a remote media description
Error
Twilio Voice DocumentationVoice

No supported codec
Error
Twilio Video DocumentationVideo

Media connection failed or Media activity ceased
Error
Twilio Video DocumentationVideo

The data channel used by the Data Track had a problem
Error
Twilio Video DocumentationVideo

Media connection failed due to DTLS handshake failure
Error
Twilio Video DocumentationVideo

ICE connection restart was attempted, but it is not allowed
Error
Twilio Video DocumentationVideo

Unable to acquire configuration
Error
Twilio Video DocumentationVideo

Unable to acquire TURN credentials
Error
Twilio Video DocumentationVideo

S3 URL for recording upload is invalid
Error
Twilio Video DocumentationVideo

AWS credentials for recording upload are invalid
Error
Twilio Video DocumentationVideo

AWS encryption key for recording upload is invalid
Error
Twilio Video DocumentationVideo

Internal failure while processing a recording
Warning
Twilio Video DocumentationVideo

Failed to upload the recording to S3
Warning
Twilio Video DocumentationVideo

Internal failure when retrieving your account's recording settings
Warning
Twilio Video DocumentationVideo

Internal failure when creating the recording resource
Warning
Twilio Video DocumentationVideo

Internal failure when updating the recording resource
Warning
Twilio Video DocumentationVideo

Invalid URL for external S3 bucket in recording settings
Warning
Twilio Video DocumentationVideo

Invalid AWS credentials to access external S3 bucket in recording settings
Warning
Twilio Video DocumentationVideo

Invalid public key for media tracks encryption in recording settings
Warning
Twilio Video DocumentationVideo

AWS credentials to access external S3 bucket could not be loaded
Warning
Twilio Video DocumentationVideo

Public key credentials for media tracks encryption could not be loaded
Warning
Twilio Video DocumentationVideo

Access denied to external S3 bucket configured in recording settings
Warning
Twilio Video DocumentationVideo

Deleted a recording with custom configuration as time for retries was depleted
Error
Twilio Video DocumentationVideo

Internal failure when bulk deleting compositions from your account
Warning
Twilio Video DocumentationVideo

Invalid URL for external S3 bucket in composition settings
Warning
Twilio Video DocumentationVideo

Invalid AWS credentials to access external S3 bucket in composition settings
Warning
Twilio Video DocumentationVideo

Invalid public key for media tracks encryption in composition settings
Warning
Twilio Video DocumentationVideo

AWS credentials to access external S3 bucket could not be loaded
Warning
Twilio Video DocumentationVideo

Public key credentials for media tracks encryption could not be loaded
Warning
Twilio Video DocumentationVideo

Access denied to external S3 bucket configured in composition settings
Error
Twilio Video DocumentationVideo

Internal failure while processing media composition
Error
Twilio Video DocumentationVideo

Internal failure when updating the composition resource
Error
Twilio Video DocumentationVideo

Room recordings deleted
Error
Twilio Video DocumentationVideo

Empty track list for composition
Warning
Twilio Video DocumentationVideo

Failed to enqueue a room composition from a configured composition hook
Warning
Twilio Video DocumentationVideo

Failed to enqueue a room composition
Error
Twilio Video DocumentationVideo

Composition is too large
Warning
Twilio Video DocumentationVideo

Status Callback response timed out
Warning
Twilio Video DocumentationVideo

StatusCallbackMethod is invalid
Warning
Twilio Video DocumentationVideo

StatusCallback is invalid
Error
Twilio Video DocumentationVideo

Internal failure when bulk deleting recordings from your account
Error
Twilio Video DocumentationVideo

Invalid URL for external S3 bucket in composition settings
Error
Twilio Video DocumentationVideo

Invalid AWS credentials to access external S3 bucket in composition settings
Error
Twilio Video DocumentationVideo

Invalid public key for media tracks encryption in composition settings
Error
Twilio Video DocumentationVideo

AWS credentials to access external S3 bucket could not be loaded
Error
Twilio Video DocumentationVideo

Public key credentials for media tracks encryption could not be loaded
Error
Twilio Video DocumentationVideo

Access denied to external S3 bucket configured in composition settings
Error
Twilio Video DocumentationVideo

Video Room Realtime Transcriptions: Configuration Error
Error
Twilio Video DocumentationVideo

Video Room Realtime Transcriptions: Provider Error
Error
Twilio Video DocumentationVideo

Video Room Transcriptions: Unsupported attribute(s) in TranscriptionsConfiguration
Error
Twilio Video DocumentationVideo

Video Room Realtime Transcriptions: Internal Error
Warning
Twilio Video DocumentationVideo

Video Room Realtime Transcriptions: Intelligence Service Error
Warning
Twilio Video DocumentationVideo

Video Room Realtime Transcriptions: Approaching transcription concurrency quota
Error
Twilio Video DocumentationVideo

Video Room Realtime Transcriptions: Transcription concurrency quota exceeded
Error
Twilio Sync DocumentationSync

Invalid If-Match header
Error
Twilio Sync DocumentationSync

Request entity too large
Error
Twilio Sync DocumentationSync

Access forbidden for identity
Error
Twilio Sync DocumentationSync

Invalid JSON
Error
Twilio Sync DocumentationSync

Rate limit exceeded
Error
Twilio Sync DocumentationSync

No parameters specified
Error
Twilio Sync DocumentationSync

Invalid TTL
Error
Twilio Sync DocumentationSync

Service Instance not found
Error
Twilio Sync DocumentationSync

Invalid webhook URL
Error
Twilio Sync DocumentationSync

Invalid friendly name
Error
Twilio Sync DocumentationSync

Account cannot access requested Service Instance
Error
Twilio Sync DocumentationSync

Document not found
Error
Twilio Sync DocumentationSync

Invalid Document data
Error
Twilio Sync DocumentationSync

Document revision mismatch
Error
Twilio Sync DocumentationSync

List not found
Error
Twilio Sync DocumentationSync

List Item not found
Error
Twilio Sync DocumentationSync

List Item revision mismatch
Error
Twilio Sync DocumentationSync

Invalid List Item data
Error
Twilio Sync DocumentationSync

Map not found
Error
Twilio Sync DocumentationSync

Map Item not found
Error
Twilio Sync DocumentationSync

Map Item revision mismatch
Error
Twilio Sync DocumentationSync

Invalid Map Item data
Error
Twilio Sync DocumentationSync

Map Item already exists
Error
Twilio Sync DocumentationSync

Invalid Map Item key
Error
Twilio Sync DocumentationSync

Message Stream not found
Error
Twilio Sync DocumentationSync

Invalid Message Stream Message data
Error
Twilio Sync DocumentationSync

Unique name not found
Error
Twilio Sync DocumentationSync

Unique name already exists
Error
Twilio Sync DocumentationSync

Invalid unique name
Error
Twilio Sync DocumentationSync

Invalid identity
Error
Twilio Sync DocumentationSync

Permission not found
Error
Twilio Sync DocumentationSync

Number of subscriptions per connection is over the limit
Error
Twilio Sync DocumentationSync

Invalid 'Direction' query parameter
Error
Twilio Sync DocumentationSync

Invalid 'Order' query parameter
Error
Twilio Sync DocumentationSync

Invalid 'Bounds' query parameter
Error
Twilio Sync DocumentationSync

Invalid 'PageToken' query parameter
Error
Twilio Sync DocumentationSync

Sync: Invalid 'PageSize' query parameter
Error
Twilio Sync DocumentationSync

Invalid List Item index
Error
Twilio Sync DocumentationSync

Invalid index name
Error
Twilio Sync DocumentationSync

Invalid query
Error
Twilio Sync DocumentationSync

Query expression contains too many operators
Error
Twilio Sync DocumentationSync

Query expression contains an array with too many items
Error
Twilio TaskRouter DocumentationTaskRouter

Invalid Instruction passed to TaskRouter
Error
Twilio Messaging DocumentationMessaging

'Secret id' is empty
Error
Twilio Messaging DocumentationMessaging

'Secret id' is too long
Error
Twilio Messaging DocumentationMessaging

'Secret id' is invalid for this Partner
Error
Twilio Messaging DocumentationMessaging

'Category' is empty
Error
Twilio Messaging DocumentationMessaging

'Category' is too long
Error
Twilio Messaging DocumentationMessaging

'EventType' is empty
Error
Twilio Messaging DocumentationMessaging

'EventType' is absent
Error
Twilio Messaging DocumentationMessaging

'EventType' format must be String
Error
Twilio Messaging DocumentationMessaging

'EventType' is too long
Error
Twilio Messaging DocumentationMessaging

'PartnerName' is absent
Error
Twilio Messaging DocumentationMessaging

Unsupported Partner name
Error
Twilio Messaging DocumentationMessaging

Signature invalid
Error
Twilio Messaging DocumentationMessaging

'Topic' is absent
Error
Twilio Messaging DocumentationMessaging

'Event' data in payload is absent
Error
Twilio Messaging DocumentationMessaging

'Topic' is empty
Error
Twilio Messaging DocumentationMessaging

'Topic' is too long
Error
Twilio Messaging DocumentationMessaging

'Event' value type must be Map
Error
Twilio Messaging DocumentationMessaging

'Authorization' header is missing or is invalid
Error
Twilio Messaging DocumentationMessaging

Authorization failed
Error
Twilio Messaging DocumentationMessaging

Token invalid
Error
Twilio Messaging DocumentationMessaging

Required header is missing or invalid

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CodeDescription
Error

Downstream Authentication Failed
Error

End User Identification Timeout
Error

End User Data is Not Available
Error

Invalid Configuration
Error

Downstream Carrier Error
Error
Twilio Verify DocumentationVerify

Invalid Phone Number
Error

Downstream Verification Failed
Error

Unsupported Carrier
Error
Twilio Verify DocumentationVerify

Invalid parameter
Error
Twilio Verify DocumentationVerify

Selected template translation is not approved
Error
Twilio Verify DocumentationVerify

Max check attempts reached
Error
Twilio Verify DocumentationVerify

Max send attempts reached.
Error
Twilio Verify DocumentationVerify

Service does not support this feature
Error
Twilio Verify DocumentationVerify

SMS is not supported by landline phone number
Error
Twilio Verify DocumentationVerify

'Amount' & 'Payee' params are required
Error
Twilio Verify DocumentationVerify

Max rate limits per service reached
Error
Twilio Verify DocumentationVerify

Rate limit with that UniqueName already exists
Error
Twilio Verify DocumentationVerify

UniqueName format is invalid
Error
Twilio Verify DocumentationVerify

Max Buckets per Rate limit reached
Error
Twilio Verify DocumentationVerify

Bucket with the given Interval already exists
Error
Twilio Verify DocumentationVerify

Too many concurrent requests for phone number
Error
Twilio Verify DocumentationVerify

A Messaging Configuration already exists for the given country
Error
Twilio Verify DocumentationVerify

Call channel is not supported when using PSD2
Error
Twilio Verify DocumentationVerify

Max number of mailers per account reached
Error
Twilio Verify DocumentationVerify

Invalid Service configuration
Error
Twilio Verify DocumentationVerify

SendGrid Template is not active
Error
Twilio Verify DocumentationVerify

SendGrid Template does not contain required placeholders
Error
Twilio Verify DocumentationVerify

Messages to China require use case vetting
Error
Twilio Verify DocumentationVerify

No target verification specified
Error
Twilio Verify DocumentationVerify

SendGrid The from address does not match a verified Sender Identity
Error
Twilio Verify DocumentationVerify

Delivery channel disabled
Error
Twilio Verify DocumentationVerify

Missing substitutions for selected template
Error
Twilio Verify DocumentationVerify

Translation already exists for the provided template
Error
Twilio Verify DocumentationVerify

Messages sent to china require friendly_name
Error
Twilio Verify DocumentationVerify

The selected channel for template is not supported
Error
Twilio Verify DocumentationVerify

Template was not found
Error
Twilio Verify DocumentationVerify

Template translation was not found
Error
Twilio Verify DocumentationVerify

Sender id already exists for account
Error
Twilio Verify DocumentationVerify

Sender id does not exist
Error
Twilio Verify DocumentationVerify

Default sender id can't be deleted
Error
Twilio Verify DocumentationVerify

Sender id can not be set as not default
Error
Twilio Verify DocumentationVerify

Sender Definitions does not match with requirements
Error
Twilio Verify DocumentationVerify

The domain could not be obtained from the given email
Error
Twilio Verify DocumentationVerify

The given domain is on a deny list
Error
Twilio Verify DocumentationVerify

Verification Creation Attempt blocked by Twilio
Warning
Twilio Verify DocumentationVerify

BYOT feature is not enabled
Warning
Twilio Verify DocumentationVerify

Templates not allowed
Warning
Twilio Verify DocumentationVerify

Static message required
Error
Twilio Verify DocumentationVerify

WhatsApp template not found
Error
Twilio Verify DocumentationVerify

Custom messages are not supported
Warning
Twilio Verify DocumentationVerify

Custom messages are not supported
Error
Twilio Verify DocumentationVerify

You have exceeded your messaging limits
Error
Twilio Verify DocumentationVerify

Service already exists
Error
Twilio Verify DocumentationVerify

Message Length Exceeded
Error
Twilio Verify DocumentationVerify

Friendly Name contains a restricted word
Error
Twilio Verify DocumentationVerify

Missing Registration for Australia
Error
Twilio Verify DocumentationVerify

Invalid Param
Error
Twilio Verify DocumentationVerify

Entity already exists
Error
Twilio Verify DocumentationVerify

FactorType already exists
Error
Twilio Verify DocumentationVerify

Access Token parameters are invalid
Error
Twilio Verify DocumentationVerify

Invalid Request
Error
Twilio Verify DocumentationVerify

Cannot resend push notifications to 'none' notification platform
Error
Twilio Verify DocumentationVerify

Challenge verification attempts limit reached
Error
Twilio Verify DocumentationVerify

Push notifications limit reached for a Challenge
Error
Twilio Verify DocumentationVerify

Factor verification attempts reached
Error
Twilio Verify DocumentationVerify

Factor verification failed
Error
Twilio Verify DocumentationVerify

Challenge creation limit reached
Error
Twilio Verify DocumentationVerify

Unauthorized factor creation
Error
Twilio Verify DocumentationVerify

Factors binding format is invalid
Error
Twilio Verify DocumentationVerify

Reached max limit of 20 push Factors associated per Entity
Error
Twilio Verify DocumentationVerify

Factor already exists
Error
Twilio Verify DocumentationVerify

Factor is unverified
Error
Twilio Verify DocumentationVerify

Challenge already responded
Error
Twilio Verify DocumentationVerify

Challenge expired
Error
Twilio Verify DocumentationVerify

Challenge verification failed
Warning
Twilio Verify DocumentationVerify

Translation for locale not found, using default
Error
Twilio Verify DocumentationVerify

Too many requests to create factors for the entity
Warning
Twilio Verify DocumentationVerify

Channel not supported by template; Verify falling back to static message
Error
Twilio Verify DocumentationVerify

Entities rate limit exceeded
Error
Twilio Verify DocumentationVerify

Verify SNA does not work with `psd2_enabled`
Error
Twilio Verify DocumentationVerify

Failed to invoke the webhook
Error
Twilio Verify DocumentationVerify

Locale requested is not supported by Verify Text-To-Speech conversion
Warning
Twilio Verify DocumentationVerify

The SMS message was sent using a brandless template.
Warning
Twilio Verify DocumentationVerify

The SMS message was sent using a brandful template.
Warning
Twilio Verify DocumentationVerify

The SMS message was sent using a brandless template.
Error
Twilio Verify DocumentationVerify

Account SID is invalid or not provided
Error
Twilio Verify DocumentationVerify

Factor SID invalid or not provided
Error
Twilio Verify DocumentationVerify

Service SID invalid or not provided
Error
Twilio Verify DocumentationVerify

Challenge SID invalid or not provided
Error
Twilio Verify DocumentationVerify

Entity SID invalid or not provided
Error
Twilio Verify DocumentationVerify

Entity invalid or not provided
Error
Twilio Verify DocumentationVerify

Invalid entity identity
Error
Twilio Verify DocumentationVerify

Challenge details invalid or not provided
Error
Twilio Verify DocumentationVerify

Factor type invalid or not provided
Error
Twilio Verify DocumentationVerify

Factor config invalid or not provided
Error
Twilio Verify DocumentationVerify

Relying party invalid or not provided
Error
Twilio Verify DocumentationVerify

Relying party id invalid or not provided
Error
Twilio Verify DocumentationVerify

Invalid page size
Error
Twilio Verify DocumentationVerify

Invalid page token
Error
Twilio Verify DocumentationVerify

Invalid id
Error
Twilio Verify DocumentationVerify

Invalid rawId
Error
Twilio Verify DocumentationVerify

Authenticator attachment invalid or not provided
Error
Twilio Verify DocumentationVerify

Authenticator response invalid or not provided
Error
Twilio Verify DocumentationVerify

Authenticator data invalid or not provided
Error
Twilio Verify DocumentationVerify

Client data invalid or not provided
Error
Twilio Verify DocumentationVerify

Signature invalid or not provided
Error
Twilio Verify DocumentationVerify

Factor does not match the relying party of the challenge
Error
Twilio Verify DocumentationVerify

Illegal factor status
Error
Twilio Verify DocumentationVerify

Invalid challenge timeout
Error
Twilio Verify DocumentationVerify

Public key invalid or not provided
Error
Twilio Verify DocumentationVerify

Attestation object invalid or not provided
Error
Twilio Verify DocumentationVerify

Attested credential data invalid or not provided
Error
Twilio Verify DocumentationVerify

User display name not provided
Error
Twilio Verify DocumentationVerify

Factor not found
Error
Twilio Verify DocumentationVerify

Challenge not found
Error
Twilio Verify DocumentationVerify

Entity not found
Error
Twilio Verify DocumentationVerify

Network Error
Error
Twilio Verify DocumentationVerify

Mapper Error
Error
Twilio Verify DocumentationVerify

Storage Error
Error
Twilio Verify DocumentationVerify

Input Error
Error
Twilio Verify DocumentationVerify

Key Storage Error
Error
Twilio Verify DocumentationVerify

Initialization Error
Error
Twilio Verify DocumentationVerify

Authentication Token Error
Error
Twilio Verify DocumentationVerify

TemplateSid is only supported for the SMS channel
Warning
Twilio Verify DocumentationVerify

Custom message did not match any template
Error
Twilio Verify DocumentationVerify

Verification delivery attempt blocked
Error
Twilio Verify DocumentationVerify

Phone Number or Phone Number Prefix already exists in Safelist
Error
Twilio Verify DocumentationVerify

Verification blocked by Fraudulent Signup Prevention
Error
Twilio Verify DocumentationVerify

Invalid Contact ID format
Error
Twilio Verify DocumentationVerify

Unexpected result when creating contact
Error
Twilio Verify DocumentationVerify

Contact not found
Error
Twilio Verify DocumentationVerify

Multiple contacts were found
Error
Twilio Verify DocumentationVerify

Contact address not found
Error
Twilio Verify DocumentationVerify

Verification SID invalid or not provided
Error
Twilio Verify DocumentationVerify

Verification ID invalid or not provided
Error
Twilio Verify DocumentationVerify

Factor ID invalid or not provided
Error
Twilio Verify DocumentationVerify

Unsupported channel
Error
Twilio Verify DocumentationVerify

Verification not found
Error
Twilio Verify DocumentationVerify

Unsupported passkeys relying party
Error
Twilio Verify DocumentationVerify

Unsupported passkeys approval content type
Error
Twilio Verify DocumentationVerify

Unsupported passkeys verification content type
Error
Twilio Verify DocumentationVerify

Recipient invalid or not provided
Error
Twilio Verify DocumentationVerify

Recipient type unsupported
Error
Twilio Verify DocumentationVerify

Unsupported verification content type
Error
Twilio Verify DocumentationVerify

Illegal status
Error
Twilio Verify DocumentationVerify

SNA Phone Number Mismatch
Error
Twilio Verify DocumentationVerify

SNA Error
Error
Twilio Verify DocumentationVerify

SNA Downstream Error
Error
Twilio Verify DocumentationVerify

SNA User-Agent Mismatch Error
Error
Twilio Verify DocumentationVerify

SNA Verification Result Pending
Error
Twilio Verify DocumentationVerify

SNA URL Failed
Error
Twilio Verify DocumentationVerify

SNA Carrier Not Detected
Error
Twilio Verify DocumentationVerify

SNA Potential Dual SIM Detected
Error
Twilio Verify DocumentationVerify

SNA Carrier Header Error
Error
Twilio Verify DocumentationVerify

SNA Downstream Carrier Error
Error
Twilio Verify DocumentationVerify

SNA Carrier Identified Invalid Phone Number
Error
Twilio Verify DocumentationVerify

Auto Channel Failed: No channels selected due to validation errors. Check console.
Error
Twilio Lookup DocumentationLookup

Unprovisioned or out of coverage
Error
Twilio Lookup DocumentationLookup

Authorization required for Canada lookups
Error
Twilio Verify DocumentationVerify

App hash can only be used with SMS channel
Error
Twilio Verify DocumentationVerify

SendGrid maximum credits exceeded
Error
Twilio Verify DocumentationVerify

SendGrid Authenticated user is not authorized to send mail
Error
Twilio Verify DocumentationVerify

Verification delivery attempt blocked
Error
Twilio Lookup DocumentationLookup

Lookup Package is Not Enabled
Error
Twilio Lookup DocumentationLookup

Lookup Unsupported Country
Error
Twilio Lookup DocumentationLookup

Lookup Error
Error
Twilio Lookup DocumentationLookup

Live activity not enabled
Error
Twilio Lookup DocumentationLookup

Phone number outside of coverage
Error
Twilio Lookup DocumentationLookup

Lookup Package Quota Reached
Error
Twilio Lookup DocumentationLookup

Requested phone number not mobile
Error
Twilio Lookup DocumentationLookup

Lookup Provider Degradation
Error
Twilio Lookup DocumentationLookup

Lookup Request Must Be Completed in Different Twilio Region
Error
Twilio Lookup DocumentationLookup

Lookup rate limit exceeded
Error
Twilio Lookup DocumentationLookup

Lookup Not Enough Request Parameters
Error
Twilio Lookup DocumentationLookup

Lookup Malformed Request Parameter
Error
Twilio Lookup DocumentationLookup

Lookup Request Cannot be Completed in Twilio Region
Error
Twilio Lookup DocumentationLookup

Lookup SIM Swap Information is Incomplete From Carrier
Error
Twilio Lookup DocumentationLookup

Lookup Carrier Information Not Available
Error
Twilio Lookup DocumentationLookup

Invalid Magic Number
Warning
Twilio Lookup DocumentationLookup

Verification Not Found
Error
Twilio Lookup DocumentationLookup

Maximum rate limit for Trial Accounts
Error
Twilio Lookup DocumentationLookup

Phone Number is Cancelled
Error
Twilio Lookup DocumentationLookup

Phone number rate limit exceeded
Error
Twilio Lookup DocumentationLookup

Lookup Usage Disabled
Error
Twilio Messaging DocumentationMessaging

Something went wrong. Try again later
Error
Twilio Messaging DocumentationMessaging

Invalid request
Warning
Twilio Messaging DocumentationMessaging

Business Profile not found
Error
Twilio Messaging DocumentationMessaging

Invalid phone numbers format
Error
Twilio Messaging DocumentationMessaging

Phone number not branded by Twilio
Error
Twilio Messaging DocumentationMessaging

Invalid Push Token
Warning
Twilio Messaging DocumentationMessaging

Branded Channel not found
Warning
Twilio Messaging DocumentationMessaging

Phone record number not found
Warning
Twilio Messaging DocumentationMessaging

Business Profile already exists
Warning
Twilio Messaging DocumentationMessaging

Phone number CPS not found
Error
Twilio Messaging DocumentationMessaging

Business status does not allow updates
Error
Twilio Messaging DocumentationMessaging

Error communicating with Regulatory Compliance API
Error
Twilio Messaging DocumentationMessaging

Error communicating with Regulatory Identification API
Warning
Twilio Messaging DocumentationMessaging

Brand not found
Error
Twilio Messaging DocumentationMessaging

Error reading logo file
Error
Twilio Messaging DocumentationMessaging

Selected logo is not a valid PNG file
Error
Twilio Messaging DocumentationMessaging

Error uploading logo to the storage
Warning
Twilio Messaging DocumentationMessaging

Branded Call not found
Warning
Twilio Messaging DocumentationMessaging

Phone Number(s) already used in a Branded Channel
Warning
Twilio Messaging DocumentationMessaging

Business status does not allow dismissal
Warning
Twilio Messaging DocumentationMessaging

Brand status does not allow updates
Warning
Twilio Messaging DocumentationMessaging

Brand status does not allow dismissal
Warning
Twilio Messaging DocumentationMessaging

Brand status does not allow to have branded channels
Warning
Twilio Messaging DocumentationMessaging

Business status does not allow to have brands
Warning
Twilio Messaging DocumentationMessaging

Channel not found
Error
Twilio Verify DocumentationVerify

Account exceeded the hourly messages limit
Error

Add-ons: Internal server error
Error

Add-ons: Request timed out
Error

Add-ons: Provider could not complete request
Error

Add-ons: Requirements to invoke AddOns have not been met
Warning

Add-ons: No results
Error

Add-ons: Bad request
Warning

Add-ons: Add-ons unavailable for GET callbacks
Error

Add-ons: Response body too large
Error

Add-ons: HTTP too many redirects
Error

Add-ons: Could not fulfill request with available data
Error
Twilio Interconnect DocumentationInterconnect

Failed to write to the database.
Error
Twilio Interconnect DocumentationInterconnect

Invalid SID
Error
Twilio Interconnect DocumentationInterconnect

Exchange not found
Error
Twilio Interconnect DocumentationInterconnect

MPLS carrier not found.
Error
Twilio Interconnect DocumentationInterconnect

Direct connect not found.
Error
Twilio Interconnect DocumentationInterconnect

Bandwidth reserve not found.
Error
Twilio Interconnect DocumentationInterconnect

MPLS carrier is not associated with the exchange.
Error
Twilio Interconnect DocumentationInterconnect

Direct connect is not associated with the exchange.
Error
Twilio Interconnect DocumentationInterconnect

Bandwidth reserve is not associated with the exchange.
Error
Twilio Interconnect DocumentationInterconnect

Account SID was not found.
Error
Twilio Interconnect DocumentationInterconnect

No authentication was provided.
Error
Twilio Interconnect DocumentationInterconnect

Unauthorized
Error
Twilio Interconnect DocumentationInterconnect

Connection not found.
Error
Twilio Interconnect DocumentationInterconnect

Unable to identify account owner of connection.
Error
Twilio Interconnect DocumentationInterconnect

Connection not ready
Error
Twilio Interconnect DocumentationInterconnect

Connection in transition
Error
Twilio Interconnect DocumentationInterconnect

Connection not active
Error
Twilio Interconnect DocumentationInterconnect

No IP route specified
Error
Twilio Interconnect DocumentationInterconnect

Invalid IP route
Error
Twilio Interconnect DocumentationInterconnect

IP route exceeds permitted IP range
Error
Twilio Interconnect DocumentationInterconnect

Connection pending deletion.
Error
Twilio Interconnect DocumentationInterconnect

IP Gateway Invalid
Error
Twilio Interconnect DocumentationInterconnect

Missing account SID
Error
Twilio Interconnect DocumentationInterconnect

Missing exchange
Error
Twilio Interconnect DocumentationInterconnect

Missing connection type
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: Invalid connection type
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: Missing MPLS carrier SID
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: Extra MPLS parameter
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: Connection expired.
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: No useful parameters provided.
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: No bandwidth was specified in the request
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: Account is not a subaccount of the Connection owner
Error
Twilio Interconnect DocumentationInterconnect

Interconnect: The subaccount is not authorized to access this connection.
Error
Twilio Interconnect DocumentationInterconnect

IP address(es) already linked to another connection
Error
Twilio Interconnect DocumentationInterconnect

Provisioning failure - Network-API is unavailable!
Error
Twilio Interconnect DocumentationInterconnect

Provisioning failure - Requested bandwidth not available on the network device.
Error
Twilio Messaging DocumentationMessaging

Channel authentication failed. See Channel-specific error for details
Error
Twilio Messaging DocumentationMessaging

Channel could not find the From address
Error
Twilio Messaging DocumentationMessaging

Channel could not find To address
Error
Twilio Messaging DocumentationMessaging

Channel rejected content. See Channel-specific error for details
Error
Twilio Messaging DocumentationMessaging

Content could not be formatted for this channel. See Channel-specific error
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Twilio could not find a Channel with the specified 'From' address
Error
Twilio Messaging DocumentationMessaging

Request failed: channel module misconfigured. Check Channel config in Twilio
Error
Twilio Messaging DocumentationMessaging

Channel provider returned HTTP 5xx error. See Channel-specific error for details
Error
Twilio Messaging DocumentationMessaging

Twilio's platform encountered an internal error processing this message
Error
Twilio Messaging DocumentationMessaging

Invalid Request: Twilio encountered an error while processing your request
Error
Twilio Messaging DocumentationMessaging

Channel provider returned an internal service error
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Channel policy violation
Error
Twilio Messaging DocumentationMessaging

Channel message blocked by user action
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Channel Sandbox can only send messages to phone numbers that have joined the Sandbox
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Outside messaging window. For WhatsApp, use a Message Template instead
Error
Twilio Messaging DocumentationMessaging

Rate limit exceeded
Error
Twilio Messaging DocumentationMessaging

Rate limit exceeded for Channel
Error
Twilio Messaging DocumentationMessaging

Media failed to download
Error
Twilio Messaging DocumentationMessaging

Twilio encountered a Business Manager account error
Error
Twilio Messaging DocumentationMessaging

Channel invalid content error
Error
Twilio Messaging DocumentationMessaging

Invalid vname certificate
Error
Twilio Messaging DocumentationMessaging

Channel generic error
Error
Twilio Messaging DocumentationMessaging

Invalid message recipient
Error
Twilio Messaging DocumentationMessaging

Media already exists
Error
Twilio Messaging DocumentationMessaging

Channel sender content flagged as spam
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp
Twilio Content DocumentationContent

Template does not exist for a language and locale
Error
Twilio Messaging DocumentationMessaging

Number of parameters provided does not match the expected number of parameters
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp
Twilio Content DocumentationContent

The receiver failed to download the template
Error
Twilio Messaging DocumentationMessaging

Unsupported parameter for type of channels message
Error
Twilio Messaging DocumentationMessaging

Channels message cannot have same 'From' and 'To'
Error
Twilio Messaging DocumentationMessaging

We cannot send this message to this user because of a WhatsApp limitation.
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Recipient opted out to receive message
Error
Twilio Messaging DocumentationMessaging

Media exceeds size limit
Error
Twilio Messaging DocumentationMessaging
Twilio RCS DocumentationRCS

The RCS sender does not have permission to send to this recipient.
Error
Twilio Messaging DocumentationMessaging

The specified phone number cannot be reached using RCS at this time.
Warning
Twilio Messaging DocumentationMessaging

Channel Media Upload Error
Error
Twilio Messaging DocumentationMessaging

Account exceeded the daily messages limit
Error
Twilio Messaging DocumentationMessaging

Facebook warning: reduce message rate outside 24-hour window to avoid restrictions
Error
Twilio Messaging DocumentationMessaging

Template Rejected
Error
Twilio Messaging DocumentationMessaging

Template paused
Error
Twilio Messaging DocumentationMessaging

Template disabled
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

Link to a sample media file returns 403 Forbidden
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

Link to a sample media file returns 404 Not Found
Error
Twilio Messaging DocumentationMessaging

Link to a sample media file returned an unexpected error status
Warning
Twilio Messaging DocumentationMessaging

Template approved
Error
Twilio Messaging DocumentationMessaging

Link to a sample media file returned an invalid Content-Type
Error
Twilio Messaging DocumentationMessaging

Meta chose not to deliver this WhatsApp marketing message
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

WhatsApp User Opted Out of Receiving Marketing Messages
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

WhatsApp Sender or Account is Locked
Warning
Twilio Messaging DocumentationMessaging

Legacy WhatsApp Template Used
Error
Twilio Messaging DocumentationMessaging

Template sync can take up to 10 minutes. Wait, then retry sending your message.
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp
Twilio Content DocumentationContent

Template unavailable for use
Error
Twilio Messaging DocumentationMessaging

Only marketing messages supported on MM Lite API
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Ineligible account type
Error

Template Submission Rate Limit Exceeded
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Business is restricted from messaging users in this country
Error
Twilio Messaging DocumentationMessaging

Phone number migrated to a different WhatsApp Business Account
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Validation Error
Error
Twilio Messaging DocumentationMessaging

WABA ID provided is not valid or unable to be used
Error
Twilio Messaging DocumentationMessaging

Account already linked to another WABA ID
Error
Twilio Messaging DocumentationMessaging

Cannot assign payment method to WABA provided
Error
Twilio Messaging DocumentationMessaging

Maximum number of phone numbers reached for your WABA
Error
Twilio Messaging DocumentationMessaging

Channel does not support this action
Error
Twilio Messaging DocumentationMessaging
Twilio RCS DocumentationRCS

phone_number is not a RCS capable number
Error
Twilio Messaging DocumentationMessaging

phone_number must be a valid E.164 formatted phone number
Error
Twilio Messaging DocumentationMessaging
Twilio RCS DocumentationRCS

Sender is not ready to add test device
Error
Twilio Messaging DocumentationMessaging

This Sender has been migrated into a different account
Error
Twilio Messaging DocumentationMessaging

The phone number registration error
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Sender's phone number or WABA returned "not found"
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Meta disabled the WhatsApp Business Account connected to this Sender
Error
Twilio Messaging DocumentationMessaging

Sender Cannot Be Verified
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

Too Many Verification Codes
Error
Twilio Messaging DocumentationMessaging

Could not update Whatsapp business profile on the WhatsApp Sender
Error
Twilio Messaging DocumentationMessaging

WhatsApp Sender failed to be automatically registered as OTP was not received
Error
Twilio Messaging DocumentationMessaging

Downstream Service Unavailable at the moment
Error
Twilio Messaging DocumentationMessaging
Twilio WhatsApp Business Platform DocumentationWhatsApp

PIN not retrieved due to sender configuration not being found
Error
Twilio Messaging DocumentationMessaging

Meta rate limit exceeded
Error
Twilio Messaging DocumentationMessaging

Meta Business Account locked. Contact Meta Business Support to unlock
Error
Twilio Voice DocumentationVoice

Pay: Configuration Error
Error
Twilio Voice DocumentationVoice

Pay: Service unavailable.
Error
Twilio Voice DocumentationVoice

Pay: Invalid charge amount.
Error
Twilio Voice DocumentationVoice

Pay: Invalid paymentConnector attribute in TwiML.
Error
Twilio Voice DocumentationVoice

Pay: Connector does not support tokenization.
Error
Twilio Voice DocumentationVoice

Pay: Connector does not support token type.
Error
Twilio Voice DocumentationVoice

Pay: Connector does not support creating charge.
Error
Twilio Voice DocumentationVoice

Pay: Payment Gateway rejected charge creation.
Error
Twilio Voice DocumentationVoice

Pay: Twilio is no longer authorized to initiate transactions on your behalf.
Error
Twilio Voice DocumentationVoice

Pay: Payment Gateway rejected token creation.
Error
Twilio Voice DocumentationVoice

Pay: Connector does not support the requested currency.
Error
Twilio Voice DocumentationVoice

Pay: Payment Gateway rejected the card.
Error
Twilio Voice DocumentationVoice

Pay: Connector does not support supplied paymentMethod attribute.
Error
Twilio Voice DocumentationVoice

Pay: ECP/ACH requires AVSName Parameter in the <Pay> verb.
Error
Twilio Voice DocumentationVoice

Pay: `<Pay>` verb is missing a needed Parameter
Error
Twilio Voice DocumentationVoice

Pay: Invalid Action URL
Error
Twilio Voice DocumentationVoice

Pay: BankAccountType Parameter not supported with PaymentMethod = "credit-card"
Error
Twilio Voice DocumentationVoice

Pay: Value needed for either Capture or Status parameters
Error
Twilio Voice DocumentationVoice

Pay: Required payment information incomplete
Error
Twilio Voice DocumentationVoice

Pay: Invalid Parameter Value
Error
Twilio Voice DocumentationVoice

Pay: Invalid Operation
Error
Twilio Voice DocumentationVoice

Pay: Invalid Test Card Number
Error
Twilio Voice DocumentationVoice

Pay: Invalid Test Bank Account Number
Error
Twilio Voice DocumentationVoice

Pay: Connector Instance Not Approved
Error
Twilio Voice DocumentationVoice

ConversationRelay: Invalid Parameter
Error
Twilio Voice DocumentationVoice

ConversationRelay: Unable to Connect to Websocket URL
Error
Twilio Voice DocumentationVoice

ConversationRelay: Internal Server Error
Error
Twilio Voice DocumentationVoice

ConversationRelay: Max call duration reached
Error
Twilio Voice DocumentationVoice

ConversationRelay: Websocket ended
Error
Twilio Voice DocumentationVoice

ConversationRelay: Invalid argument
Error
Twilio Voice DocumentationVoice

ConversationRelay: Invalid Message Received
Error
Twilio Voice DocumentationVoice

ConversationRelay: RTP Timeout
Error
Twilio Voice DocumentationVoice

ConversationRelay: Concurrency limit reached
Error
Twilio Voice DocumentationVoice

ConversationRelay: Account has been opted out
Error
Twilio Voice DocumentationVoice

ConversationRelay: TTS provider service error
Error
Twilio Voice DocumentationVoice

ConversationRelay: TTS conversion error
Error
Twilio Verify DocumentationVerify

Network Error
Error
Twilio Verify DocumentationVerify

Mapper Error
Error
Twilio Verify DocumentationVerify

Storage Error
Error
Twilio Verify DocumentationVerify

Input Error
Error
Twilio Verify DocumentationVerify

Key Storage Error
Error
Twilio Verify DocumentationVerify

Initialization Error
Error
Twilio Verify DocumentationVerify

Authentication Token Error
Error
Twilio Verify DocumentationVerify

Verify WhatsApp channel not configured

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CodeDescription
Error

Validation Failed
Error

Bad request
Error

Outdated Entity
Error

Unauthorized
Error

Failure Threshold Exceeded
Error

Authorization Failed
Error

Public Key Client Validation Required For Account
Error

Public Key Client Validation Not Enabled For Account
Error

Unsupported Public Key Algorithm
Error

Unsupported Public Key Length
Error

Unsupported Public Key Exponent
Error

Invalid Public Key
Error

Invalid Type Specified in the Request
Error

Invalid AWS credentials
Error

Maximum Number Of API Keys Exceeded
Error

Request Contains Invalid Flags
Error

Public Key Specified Does Not Exist
Error

Public Key Is Invalid
Error

Request Is Missing Required HTTP Headers
Error

Request Hash Is Invalid
Error

Bad SSO Settings
Error

Bad Saml Response
Error

Invalid User Grants
Error

Usage API version not eligible
Error
Twilio Messaging DocumentationMessaging

Account Not Ready

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CodeDescription
Error
Twilio Proxy DocumentationProxy

Number Already Added to Another Service
Warning
Twilio Flex DocumentationFlex

Participant Already In Interaction
Error
Twilio Proxy DocumentationProxy

Participant Already In Session
Warning
Twilio Proxy DocumentationProxy

Phone Number Already In Service
Warning
Twilio Messaging DocumentationMessaging

Short Code Already In Service
Warning
Twilio Proxy DocumentationProxy

No Available Voice Proxy
Warning
Twilio Proxy DocumentationProxy

No Available Message Proxy
Error
Twilio Proxy DocumentationProxy

No Available Proxy For Country
Warning
Twilio Proxy DocumentationProxy

No Proxies For Service
Warning
Twilio Proxy DocumentationProxy

No Available Proxy
Error
Twilio Proxy DocumentationProxy

No unreserved numbers in proxy pool.
Error
Twilio Proxy DocumentationProxy

No Available Unused Proxy
Error
Twilio Proxy DocumentationProxy

Not Found Phone Number SID
Warning
Twilio Messaging DocumentationMessaging

Not Found Short Code Sid
Warning
Twilio Proxy DocumentationProxy

Not Found Unmanaged Identifier
Error
Twilio Proxy DocumentationProxy

Not Found Unmanaged Identifier Sid
Error
Twilio Proxy DocumentationProxy

Not Found Chat Service
Warning

Record to be updated was not found in database.
Error
Twilio Proxy DocumentationProxy

Session with the unique name not found.
Warning
Twilio Proxy DocumentationProxy

Account Sid Invalid
Warning
Twilio Proxy DocumentationProxy

Identifier Proxy Pair Invalid
Warning
Twilio Proxy DocumentationProxy

Interaction Sid Invalid
Error
Twilio Proxy DocumentationProxy

Participant Identifier Invalid
Warning
Twilio Proxy DocumentationProxy

Participant Sid Invalid
Warning
Twilio Proxy DocumentationProxy

Phone Number Did Invalid
Warning
Twilio Proxy DocumentationProxy

Phone Number Sid Invalid
Warning
Twilio Proxy DocumentationProxy

Service Sid Invalid
Warning
Twilio Proxy DocumentationProxy

Session Sid Invalid
Error
Twilio Proxy DocumentationProxy

Storage Operation Failed
Error
Twilio Proxy DocumentationProxy

Internal Server Error from Downstream
Warning
Twilio Proxy DocumentationProxy

No Records Updated
Error
Twilio Proxy DocumentationProxy

An internal server error has occurred.
Error
Twilio Flex DocumentationFlex

Flex Configuration Error
Error
Twilio Proxy DocumentationProxy

Service Creation is restricted for new customers
Warning
Twilio Proxy DocumentationProxy

Phone Number Not Available
Warning
Twilio Proxy DocumentationProxy

Non Unique Service Name
Error

Non Unique Session Name
Warning
Twilio Proxy DocumentationProxy

Proxy Identifier In Use
Warning
Twilio Proxy DocumentationProxy

Proxy Identifier Not In Service
Warning
Twilio Proxy DocumentationProxy

Proxy Identifier Not Owned By Account
Warning
Twilio Proxy DocumentationProxy

Session Closed
Error
Twilio Proxy DocumentationProxy

Session Status Invalid
Warning
Twilio Proxy DocumentationProxy

Too Many Added Participants
Warning
Twilio Proxy DocumentationProxy

Unauthorized Operation
Error
Twilio Proxy DocumentationProxy

Proxy Number In Active Sessions
Error
Twilio Proxy DocumentationProxy

Duplicate Entry
Error
Twilio Proxy DocumentationProxy

Downstream Request Rejected
Warning
Twilio Proxy DocumentationProxy

No Partner Participant Found
Error
Twilio Proxy DocumentationProxy

Account Sid on Legal Hold
Error
Twilio Proxy DocumentationProxy

Unsupported Identifier Type For Session Mode
Error
Twilio Proxy DocumentationProxy

Flex Configuration Error
Error
Twilio Proxy DocumentationProxy

Chat Integration Error
Error
Twilio Proxy DocumentationProxy

Chat Channel Attribute Error
Error
Twilio Proxy DocumentationProxy

Chat Configured Proxy Identifier Not Found
Warning
Twilio Proxy DocumentationProxy

Requests Rate Limited on Endpoint
Error
Twilio Proxy DocumentationProxy

Maximum Pool Size Error
Error
Twilio Proxy DocumentationProxy

Duplicate Participant Request
Warning
Twilio Proxy DocumentationProxy

Approaching Maximium Number Pool Size
Error
Twilio Proxy DocumentationProxy

Unauthorized Request. Signature is missing or is invalid
Warning
Twilio Proxy DocumentationProxy

Parameter Validation Failed
Error
Twilio Proxy DocumentationProxy

Invalid attempt to Re-Open a Session
Error
Twilio Proxy DocumentationProxy

Simultaneous requests to create the same Identifier in one or more Sessions
Warning
Twilio Proxy DocumentationProxy

Message Matched Stop Word
Error
Twilio Proxy DocumentationProxy

No Active Session
Warning
Twilio Proxy DocumentationProxy

Unknown Participant
Warning
Twilio Proxy DocumentationProxy

Expired Proxy Session
Warning
Twilio Proxy DocumentationProxy

Unknown Scenario
Warning
Twilio Flex DocumentationFlex

Interaction Not Open
Warning
Twilio Flex DocumentationFlex

Open Interaction Not Found
Warning
Twilio Proxy DocumentationProxy

Callback Error
Warning
Twilio Proxy DocumentationProxy

Inbound Contact Rejected
Warning
Twilio Proxy DocumentationProxy

Message To Voice Only Session Rejected
Warning
Twilio Proxy DocumentationProxy

Call To Message Only Session Rejected
Error
Twilio Proxy DocumentationProxy

Out-Of-Session Callback Error
Warning
Twilio Studio DocumentationStudio

The Execution has exceeded max steps allowed for a flow
Warning
Twilio Studio DocumentationStudio

The Widget has exceeded max steps in a loop
Warning
Twilio Studio DocumentationStudio

Unexpected event while processing Widget
Error
Twilio Studio DocumentationStudio

Failed to add member to Chat Channel
Warning
Twilio Studio DocumentationStudio

Failed to transition because no match was found
Error
Twilio Studio DocumentationStudio

Failed to create Chat Channel
Error
Twilio Studio DocumentationStudio

Connecting to a Call timed out
Error
Twilio Studio DocumentationStudio

Failed to connect to outgoing Call
Error
Twilio Studio DocumentationStudio

Timed out enqueueing Call
Error
Twilio Studio DocumentationStudio

There was an internal error while processing a Function
Error
Twilio Studio DocumentationStudio

Failed to send Message
Error
Twilio Studio DocumentationStudio

Failed to update Sync service
Error
Twilio Studio DocumentationStudio

Failed to invoke Understand API
Error
Twilio Studio DocumentationStudio

There was an internal error while processing an HTTP request
Error
Twilio Studio DocumentationStudio

Failed to Create Task
Error
Twilio Studio DocumentationStudio

Outbound HTTP Request Failed
Error
Twilio Studio DocumentationStudio

Error in Twilio Function Response
Warning
Twilio Studio DocumentationStudio

Template evaluation error in Studio widget
Error
Twilio Studio DocumentationStudio

Twilio phone number using deprecated API version
Warning
Twilio Studio DocumentationStudio

Unsupported Trigger Type
Error
Twilio Studio DocumentationStudio

Flow revision must be an integer or enum(LatestPublished, LatestRevision)
Error
Twilio Studio DocumentationStudio

Flow definition validation failed
Error
Twilio Studio DocumentationStudio

Creating an Execution via REST API failed due to malformed contact parameters
Error
Twilio Studio DocumentationStudio

Subflow Error
Warning
Twilio Studio DocumentationStudio

Studio Flow exceeds maximum allowed widgets
Error
Twilio Studio DocumentationStudio

Studio Execution failed because Flow exceeds maximum allowed widgets
Warning
Twilio Studio DocumentationStudio

Error parsing type in Studio widget
Warning
Twilio Studio DocumentationStudio

Invalid wait URL in Studio widget
Warning
Twilio Functions DocumentationServerless

Function invocation resulted in StatusCode 4xx
Error
Twilio Functions DocumentationServerless

Error on Twilio Function response
Error
Twilio Functions DocumentationServerless

Deployment Installation Failure
Warning
Twilio Functions DocumentationServerless

Function execution resulted in a warning log
Error
Twilio Functions DocumentationServerless

Function execution resulted in an error log
Error
Twilio Functions DocumentationServerless

Environment Context too large
Error
Twilio Functions DocumentationServerless

Unsupported Runtime
Error
Twilio Functions DocumentationServerless

Headers or cookies too large
Error
Twilio Functions DocumentationServerless

Multi-valued headers not supported
Error

Super SIM registration failed due to Internal Error
Error

Parameter missing while registering a Super SIM
Error

Super SIM cannot be registered
Error

The Super SIM already belongs to the requesting Account.
Error

Super SIM update operation failed due to Internal Error
Error

Super SIM not found
Error

Super SIM’s Target Fleet not found
Error

Unable to activate your Super SIM as it does not belong to a Fleet
Error

Unable to remove your Super SIM from its Fleet
Error

Unable to update your Super SIM’s Fleet while it is in status scheduled
Error

Unable to update your Super SIM to the desired status
Error

A Super SIM with the specified Unique Name exists already
Error

IP Commands error
Error

The device was not attached to a cellular network
Error

Received error response to IP Command callback request
Error

No eSIM Profiles are available
Error

An invalid parameter value was passed to the API
Error

Request StartTime and/or EndTime must be aligned to UTC day boundaries
Error

Request StartTime and/or EndTime must be aligned to UTC hour boundaries.
Error

The maximum allowed query period is 31 days for group by sim queries
Error
Twilio General Usage DocumentationGeneral Usage

Query period exceeds the maximum allowed for the requested Granularity
Error

StartTime parameter is too far in the past. It must be within the last 18 months.
Error

Attachment Failed Due To Internal Error
Error

Data Session Establishment Failed Due To Internal Error
Error

Attachment Rejected Due To Network Not Allowed
Error

Attachment Rejected Due To Rate Limiting
Error

Attachment Rejected Due To SIM In New State
Error

Attachment Rejected Due To SIM In Inactive State
Warning

Execution has exceeded max steps allowed for a flow.
Error

Workflow execution timed out.
Error

Workflow execution failed.
Error

Unable to render block.
Error

Error while creating execution via REST API.
Error
Twilio Voice DocumentationVoice

Invalid credential
Error
Twilio Voice DocumentationVoice

Session terminated: insufficient credits or funds for this credential
Error
Twilio Voice DocumentationVoice

Session with provider terminated due to provider issue
Error
Twilio Voice DocumentationVoice

Invalid attribute
Error
Twilio Voice DocumentationVoice

Internal Server Error
Error
Twilio Voice DocumentationVoice

Max call duration reached
Error
Twilio Voice DocumentationVoice

RTP Timeout
Error
Twilio Voice DocumentationVoice

Concurrency limit reached

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CodeDescription
Error
Twilio Flex DocumentationFlex

Uncaught Flex JavaScript Exception
Error
Twilio Messaging DocumentationMessaging

Message SID is invalid
Error
Twilio Flex DocumentationFlex

Too Many Errors
Error
Twilio Flex DocumentationFlex

Unable to fetch plugins from the Custom Plugins URL
Error
Twilio Flex DocumentationFlex

Message Truncated
Error
Twilio Messaging DocumentationMessaging

Invalid direction
Error
Twilio Messaging DocumentationMessaging

Invalid validity period value
Error
Twilio Messaging DocumentationMessaging

The message SID already exists.
Error

Account is not active
Error

MessageSid is invalid
Error

'Recipients' list has too many items [deprecated]
Error

'Template' or 'TemplateSid'&'TemplateLanguage' or 'MediaUrls' is required
Error
Twilio Messaging DocumentationMessaging

Validity Period should be positive integer
Error

Body and Template (Body, Sid, Language, Args) are provided
Error

'Template' or 'TemplateSid'/'TemplateLanguage' is required to send a Template Message
Error

'Template' and 'TemplateSid'/'TemplateLanguage' must not be specified together
Error

'Template' field is too long
Error

'TemplateArgs' dictionary size is too large
Error

One of 'TemplateArgs' dictionary key is blank
Error

One of 'TemplateArgs' dictionary key is too long
Error

One of 'TemplateArgs' dictionary value is too long
Error

One of 'TemplateArgs' dictionary value is null
Error

Template body has tag which is not provided in 'TemplateArgs'
Error

Template body has unsupported tag type
Error

Template body could not be parsed
Error

Broadcast 'FriendlyName' is too long
Error

Broadcast 'IdempotencyToken' is too long
Error

Broadcast 'CorrelationId' is empty
Error

Broadcast 'CorrelationId' is too long
Error
Twilio Messaging DocumentationMessaging

Broadcast Recipients list is empty [deprecated]
Error

Broadcast recipient's 'to' is invalid
Error

Broadcast recipient's 'to' is too long
Error

'BroadcastStatusCallbackUrl' is too long
Error

Broadcast 'MessageStatusCallbackUrl' is too long
Error

Broadcast recipient's 'body' is too long
Error

Broadcast has too many 'CorrelationId' items
Error

'BroadcastStatusCallbackUrl' is invalid
Error

Broadcast 'MessageStatusCallbackUrl' is invalid
Error

Broadcast 'MediaUrls' list has too many items
Error

Broadcast 'MediaUrl' field is too long
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Invalid Autopilot Actions JSON
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Unique Name Already Exists
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Assistant failure to start collection
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Error processing answer during collection
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Invalid Collect Field Type
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

[Autopilot] Signature validation failed
Error
Twilio Event Streams DocumentationEvents

Sink could not be created
Error
Twilio Event Streams DocumentationEvents

Sink could not be found
Error
Twilio Event Streams DocumentationEvents

Incorrect values for pagination
Error
Twilio Event Streams DocumentationEvents

Account reached the max sink limit
Error
Twilio Event Streams DocumentationEvents

Test event cannot be found
Error
Twilio Event Streams DocumentationEvents

Test ID is invalid
Error
Twilio Event Streams DocumentationEvents

The sink sid is in an invalid format
Error
Twilio Event Streams DocumentationEvents

Sink still in use
Error
Twilio Event Streams DocumentationEvents

Subscription could not be created
Error
Twilio Event Streams DocumentationEvents

Subscription could not be created
Error
Twilio Event Streams DocumentationEvents

Subscription could not be found
Error
Twilio Event Streams DocumentationEvents

Event type list is empty
Error
Twilio Event Streams DocumentationEvents

Event type not found
Error
Twilio Event Streams DocumentationEvents

Bad Request
Error

Not Found
Error

Method Not Allowed
Error
Twilio Messaging DocumentationMessaging

'Types' Parameter Required
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

The 'variables' parameter exceeds the allowed limit
Error
Twilio Messaging DocumentationMessaging

'language' Parameter Required
Error
Twilio Messaging DocumentationMessaging

Invalid language code
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

ContentSid Required
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

The Content Sid is Invalid
Error
Twilio Messaging DocumentationMessaging

The Content Variables Parameter is invalid
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

Unsupported Content Type
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

The template associated with this SID has already been submitted for approval.
Error
Twilio Messaging DocumentationMessaging

Invalid Content update
Error
Twilio Event Streams DocumentationEvents

Replay failed
Error
Twilio Event Streams DocumentationEvents

Unable to deliver events to sink
Error
Twilio Event Streams DocumentationEvents

There was an error with your AWS role
Error
Twilio Event Streams DocumentationEvents

There was an error with your Kinesis stream
Error
Twilio Event Streams DocumentationEvents

There is an issue with the Kinesis Stream Name or Region
Error
Twilio Flex DocumentationFlex

Consent has already been provided for this account and vendor
Error

Transcriptions: request to transcribe audio error
Error

Transcriptions: Invalid transcribe value
Error

Transcriptions: configuration not found
Warning

Transcriptions: status callback response error
Warning

Transcriptions: status callback response timed out
Error

Transcriptions Settings: Invalid encryptionEnabled value
Error

Transcriptions Settings: encryptionKeySid invalid or not found
Error

Transcriptions Configurations: Invalid callback configuration
Error

Transcriptions Configurations: UniqueName is required
Error

Transcriptions Configurations: UniqueName is invalid
Error

Transcriptions Configurations: Language is required
Error

Transcriptions Configurations: Language is invalid
Error

Transcriptions: transcription internal error
Error

Transcriptions: audio processing error
Error

Transcriptions: Encryption failed and transcription result files deleted
Warning

Transcriptions: Invalid encryption credentials
Error

Transcriptions: sourceSid invalid
Error

Transcriptions: Status invalid
Error

Filter limit exceeded
Error

Date range is not valid
Error

Invalid FromDate
Error

Ttl is out of range
Error

Account Sid on Legal Hold.
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Invalid media url
Error

Media url is empty
Error

Failed to transcribe
Error

Transcript media processing error
Error

Media file reached maximum size
Error

Invalid media type
Error

Failed to download audio file
Error

Speech-to-Text engine error
Error

Failed to delete resource
Error

Media content is empty
Error

Failed to download media: file was not found
Error

Failed to download media file: unauthorized
Error

Invalid sample rate found on media
Error

Corrupted media provided
Error

Media duration is too long.
Error

Media has too many channels
Warning

PCI Recordings are not supported
Warning

Twilio Recordings with external storage are not supported
Warning

Conversation Intelligence does not support encrypted recordings
Warning

Twilio Recording is not in a valid status to be transcribed
Error

Public Key Encryption is disabled for this account
Error

Twilio Recording is not found
Error

Public Key Encryption credential is invalid
Error

Public Key Encryption does not support media redaction
Warning

Status callback response error
Warning

Status callback response timed out
Warning

AI/ML Features Addendum has not been accepted
Error

Conversation Intelligence (classic) Service was not found
Error
Twilio Voice DocumentationVoice
Twilio Conversational Intelligence DocumentationConversational Intelligence

Transcription language code does not match the Conversation Intelligence (classic) Service
Error

Conversation Intelligence Error
Error

Service requires redaction but request language is not available for redaction
Error
Twilio Conversational Intelligence DocumentationConversational Intelligence

Service requires media redaction but language is not supported for redaction
Error

Rule execution failure
Error

Language operator execution failure
Error

Configuration validation failed during processing
Error

Operator execution timeout
Error

Operator output schema validation failed
Error

Operator guardrail violation
Warning

Language Operator version deprecated
Warning

Enterprise Knowledge search failed
Warning

Conversation Memory observation retrieval failed
Warning

Conversation Memory traits retrieval failed
Error

Configuration validation failed
Error

Configuration version conflict
Error

Operator schema validation failed
Error

Operator version conflict
Error
Twilio API Documentation and Error CodesAPI

Unable to retrieve OAuth access token
Error

General Service Error
Error

Tool Execution Error
Error

Guardrails input check failed
Error

Guardrails response check failed
Error

Invalid or Unresolved External Tool Endpoint
Error

Tool input schema is invalid.

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CodeDescription
Error
Twilio Phone Numbers DocumentationPhone Numbers

Require domestic emergency address
Error
Twilio Voice DocumentationVoice

Phone number provisioning failed - Unexpected Error

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CodeDescription
Error
Twilio Messaging DocumentationMessaging
Twilio Content DocumentationContent

Content Type is not supported on this channel

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CodeDescription
Error

Invalid credentials
Error

Empty client_id
Error

Invalid grant_type
Error

Empty client_secret
Error

Too Many Requests
Error

Too Many Requests
Error

Invalid credentials
Error

Bad Request
Error

Internal Server Error

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CodeDescription
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge could not be created
Warning
Twilio Enterprise KnowledgeEnterprise Knowledge

Partial knowledge refresh
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Search query failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Content exceeds knowledge size limits
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Text resource ingest failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Failed to crawl or fetch the URL
Warning
Twilio Enterprise KnowledgeEnterprise Knowledge

URL crawl partially timed out
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

File input failed
Warning
Twilio Enterprise KnowledgeEnterprise Knowledge

Partial update, content skipped
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge resource update failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge resource deletion failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge update validation failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge base update failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge base deletion failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge search validation failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge create validation failed
Error
Twilio Enterprise KnowledgeEnterprise Knowledge

Knowledge not found

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CodeDescription
Warning
Twilio Flex DocumentationFlex

Approaching Flex Plugin creation limit
Warning
Twilio Flex DocumentationFlex

Approaching Flex Plugin Version creation limit

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CodeDescription
Error
Twilio Conversation MemoryConversation Memory

Observation creation failed
Error
Twilio Conversation MemoryConversation Memory

Observation update failed
Error
Twilio Conversation MemoryConversation Memory

Observation not found
Error
Twilio Conversation MemoryConversation Memory

Profile already exists
Error
Twilio Conversation MemoryConversation Memory

Profile schema validation failed
Warning
Twilio Conversation MemoryConversation Memory

Profile created with defaults
Error
Twilio Conversation MemoryConversation Memory

Invalid CSV format
Error
Twilio Conversation MemoryConversation Memory

Profile access denied
Error
Twilio Conversation MemoryConversation Memory

Profile not found
Error
Twilio Conversation MemoryConversation Memory

Bulk trait upsert failed
Error
Twilio Conversation MemoryConversation Memory

Trait not found
Error
Twilio Conversation MemoryConversation Memory

Identifier merge conflict
Warning
Twilio Conversation MemoryConversation Memory

Identifier formatting error
Error
Twilio Conversation MemoryConversation Memory

Identifier not found
Error
Twilio Conversation MemoryConversation Memory

Bulk identifier add failed
Warning
Twilio Conversation MemoryConversation Memory

Identifiers skipped during bulk add
Error
Twilio Conversation MemoryConversation Memory

Identifier not found for deletion
Warning
Twilio Conversation MemoryConversation Memory

Identifier partially deleted
Error
Twilio Conversation MemoryConversation Memory

Trait group name already exists
Error
Twilio Conversation MemoryConversation Memory

Trait group not found
Error
Twilio Conversation MemoryConversation Memory

Trait group deletion failed
Error
Twilio Conversation MemoryConversation Memory

Memory store did not get created
Warning
Twilio Conversation MemoryConversation Memory

Memory store created with exceptions
Error
Twilio Conversation MemoryConversation Memory

Identity resolution config error
Warning
Twilio Conversation MemoryConversation Memory

Identity resolution settings defaulted
Error
Twilio Conversation MemoryConversation Memory

Profile merge failed
Warning
Twilio Conversation MemoryConversation Memory

Profile merge completed with conflicts
Warning
Twilio Conversation MemoryConversation Memory

Profile skipped, bulk creation errors
Warning
Twilio Conversation MemoryConversation Memory

Unmapped columns skipped
Warning
Twilio Conversation MemoryConversation Memory

Identifiers skipped during bulk add
Error
Twilio Conversation MemoryConversation Memory

Trait not deleted
Error
Twilio Conversation MemoryConversation Memory

CSV import / upload error
Error
Twilio Conversation MemoryConversation Memory

Summary retrieval failed
Error
Twilio Conversation MemoryConversation Memory

Summary update failed
Error
Twilio Conversation MemoryConversation Memory

Summary deletion failed
Error
Twilio Conversation MemoryConversation Memory

Trait not registered

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CodeDescription
Warning
Twilio Conversation OrchestratorConversation Orchestrator

Profile resolution skipped
Warning
Twilio Conversation OrchestratorConversation Orchestrator

Profile lookup returned no matching profiles
Warning
Twilio Conversation OrchestratorConversation Orchestrator

Profile lookup failed
Error
Twilio Conversation OrchestratorConversation Orchestrator

Profile creation failed

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