SAA HB 129-1999

This Handbook is an implementation guide which addresses the following:
(a) Node-to-node message specifications This Handbook provides a guide for the implementation of a common interface by which financial cards originated messages may be passed between acquirer, intermediate and issuer systems. It specifies data representation, condition codes, typical message content and field usage.
(b) Message applicationThis Handbook documents the recommended application of messages between nodes. They include pre-authorization, financial, reversal, charge-back, fee collection, network management, administrative, file action and settlement messages.