Warning 32711

Product: Programmable Voice

WARNING - 32711

Voice User-Defined Message: Request to subscription callback URL encountered error

Twilio received an error response when attempting to send a User-Defined Message event to the UserDefinedMessageSubscription callback URL.

Possible Causes

• The UserDefinedMessageSubscription callback URL is incorrect.
• Your endpoint at the UserDefinedMessageSubscription callback URL was not responding or responded with a 400- or 500-level HTTP status code.

Possible Solutions

• Make sure that the UserDefinedMessageSubscription callback URL is correct.
• Make sure that your endpoint at the UserDefinedMessageSubscription callback URL can successfully receive and respond to requests with 200-level HTTP status codes.