A method and system employing a rich short message service application (RSAPP) for creating and transmitting a rich message are provided. The rich message includes a message and a brand identity. The RSAPP receives a request to send a short message service (SMS) message to a mobile number of a user (MNU). The RSAPP processes the request to send the SMS message and determines whether the MNU is enabled on one or more rich messaging channels (RMCs). Upon determining that the MNU is enabled on the RMCs, the RSAPP creates and transmits the rich message to the MNU on the enabled RMCs. Upon determining that the MNU is not enabled on the RMCs, the RSAPP confirms whether a setting specifies transmission of the received SMS message to the MNU as a SMS message if the MNU is not enabled on the RMCs. and the RSAPP transmits the received SMS message as a SMS message to the MNU.