Card Payments Exchange - Acceptor to Acquirer

this section defines the message set used for card payment exchanges between acceptors (merchants) and acquirers within the iso 20022 framework these messages facilitate the processing of card based payment transactions, ensuring secure and standardized communication between point of sale systems and acquiring institutions the message definitions in this section cover the complete transaction lifecycle, from initial authorization requests through to transaction completion and reconciliation each message type serves a specific purpose in the payment processing workflow, enabling robust handling of various payment scenarios including purchases, refunds, and cancellations