40319 – Incompatible message type for the 'to' address

It is not possible to send messages to the requested destination using the given sender or sending number. For example, messages cannot be sent from an alphanumeric sender ID to a short code.

40319 – HTTP Status – 400

Sending messages from {src} to {dst} is not possible.

40319 – Causes

• An alphanumeric sender ID or short code is being used to send a message to a short code destination.