80701: Parameter Validation Failed

Twilio returns this warning when a request to a Proxy resource includes a parameter that does not match the expected schema, format, or allowed value for that endpoint. The warning can appear as <parameter name> is invalid. <parameter is invalid>.

• A required parameter for the resource you are creating was omitted or sent under the wrong field. For example, creating a Service requires uniqueName, and creating a Participant requires identifier.
• An enum parameter contains a value outside the supported set, such as mode, status, geoMatchLevel, or numberSelectionBehavior.
• A SID, URI, or date-time field does not match the required format, such as an invalid ServiceSid, SessionSid, ProxyIdentifierSid, callback URL, or dateExpiry.
• A string or numeric value exceeds Proxy limits, such as UniqueName, FriendlyName, Identifier, ProxyIdentifier, or ttl.
• A proxyIdentifier was provided for a Participant, but that Twilio number was not already added to the Proxy number pool for the service.

• Review the exact parameter named in the warning and compare it with the schema for the Service, Session, or Participant resource you are calling.
• Send only documented values for enum fields. For example, use one of the supported values for mode, status, geoMatchLevel, and numberSelectionBehavior.
• Validate identifiers before you send the request. Ensure SIDs use the correct prefix and length, callback fields are valid URIs, and dateExpiry is a valid ISO 8601 date-time value.
• Keep request values within documented limits. UniqueName must be 191 characters or fewer, FriendlyName must be 255 characters or fewer, Identifier must be 191 characters or fewer, ProxyIdentifier must be 255 characters or fewer, and ttl must be greater than 0 and less than 2147483647.
• If you set proxyIdentifier or proxyIdentifierSid on a Participant, use a Twilio number that is already assigned to the Proxy service's number pool.

• Service resource
• Session resource
• Participant resource