30028: Invalid API version

This error occurs when you send a request with an invalid API version. Use a supported version for the endpoint you are calling. For Messaging message resources, send requests to the 2010-04-01 API base URL.

• The request does not specify an API version.
• The request uses a version other than 2008-08-01 or 2010-04-01.
• The request URL targets a Messaging endpoint with an unsupported or mistyped version segment instead of 2010-04-01.

• Update the request to use the API version supported by the endpoint you are calling. For Messaging message resources, use 2010-04-01.
• If you are setting an ApiVersion value on a TwiML Application or another resource that accepts it, use 2008-08-01 or 2010-04-01.
• Review any hardcoded request URLs or client configuration in your application and correct the version value so it matches the endpoint requirements exactly.
• Check the failed request in Console error logs or Programmable Messaging logs to confirm which endpoint and version Twilio received.

• Messaging API overview
• Messages resource
• Debugging Tools