63012: Channel provider returned an internal service error

This error indicates that the channel provider returned an internal service error and Twilio could not complete the request. This usually corresponds to an HTTP 5xx response from the provider.

• The channel provider returned an internal service error, including an HTTP 5xx response.

• Review the channel-specific error message for more information about the provider-side failure.
• Open the message in Programmable Messaging Logs to inspect the Message SID, delivery steps, errors or warnings, and the Request Inspector.
• If you still cannot determine the cause, contact Twilio Support and include the relevant Message SID.

• Debugging Tools
• Programmable Messaging Logs
• Twilio Health Score for Messaging