14104: Invalid Method attribute

You see this warning when the <Message> verb uses a method attribute value other than GET or POST. Use the method attribute to tell Twilio whether to request the action URL with HTTP GET or POST. If you omit method, Twilio uses POST.

• Your TwiML sets the <Message> verb's method attribute to a value other than GET or POST.
• Your application generates a <Message> verb with an unsupported HTTP method for the action URL request. Twilio only supports GET and POST for this attribute.

• Update the <Message> verb so the method attribute is set to GET or POST only.
• Remove the method attribute if you want Twilio to use the default POST request.
• Review the action URL on your <Message> verb and make sure the endpoint is prepared to receive the HTTP method you selected.

• TwiML Message
• TwiML for Programmable Messaging
• Twilio Debugger