A method is disclosed. The method comprises receiving, from a communication device, a provisioning request message including a user device identifier and a cryptogram in a first message format, which is received from the user device by the communication device during a message exchange process between the user device and the communication device. The method also includes generating an authorization request message in a second message format, the authorization request message comprising the cryptogram, transmitting the authorization request message to an authorizing computer, and receiving an authorization response message from the authorizing computer. The method also includes providing access data to the communication device.