57017: 'Topic' is too long

This error means Twilio received a Branded Comms request without a Topic value. In the Error and Warning Dictionary, code 57017 is listed as Topic is empty and is grouped with the other Branded Comms validation errors.

• The request omits the Topic field.
• The Topic field is present but empty.

• Include a non-empty Topic value in the request.
• Check the request payload before you submit it and make sure Topic is populated.

• Messaging Webhooks
• Webhooks: an Introduction