20410: Gone

Twilio returns this error when you request a discontinued messaging API. The API is no longer available.

• You are sending messages through a discontinued API.
• You are still using the legacy SMS/Messages endpoint.

• Update your integration to use the current Messaging API endpoints.
• Replace any requests to the legacy SMS/Messages URI with the Messages resource URI.
• Review the current Messaging API and Messages resource documentation before you deploy changes.

• Messaging API overview
• Messages resource
• Switching from SMS/Messages resource URI to Messages resource URI