90011: MessageSid is invalid

This error occurs when you send a MessageSid that does not match the expected format for a Message resource. Use a Twilio-generated Message SID with the SM or MM prefix followed by 32 hexadecimal characters.

• The MessageSid value does not start with SM or MM.
• The SID is not 34 characters long.
• The SID contains characters outside the hexadecimal range 0-9 and a-f.
• You passed a SID for a different resource, such as AC... or MG..., instead of a Message SID.

• Copy the Message SID from the original message create response, a message fetch response, or the Messaging logs.
• Validate the SID format before you send the request. A valid Message SID matches ^(SM|MM)[0-9a-fA-F]{32}$.
• Make sure the MessageSid parameter contains a Twilio-generated Message SID, not another Twilio resource SID.
• If you need to inspect an existing message, fetch it from the Messages resource by using the correct Message SID.

• Messages resource
• Programmable Messaging Logs
• What is a String Identifier (SID)?