This part of X9.104 provides example of messages used in the convenience store and petroleum marketing industry based on the message formats defined in X9.104 part 1. This part of X9.104 also defines data elements and code values for use in this environment. People Who Bought This Also Bought: ANSI/X9 X9.104-1-2004 - Financial transaction card originated messages - Card acceptor to acquiring host messages Part 1: Messages@ data elements and code values