Description of Reason Code AT
Insights from Rules and Regulations
The merchant did not obtain a valid Authorization Response and the issuer cannot collect the card sale amount from the cardholder.
How to Win Reason Code AT
Provide evidence of a positive Authorization Response from the issuer for the card sale, which can be validated in the issuer's records, and show that the amount of the card sale matches the Authorization amount.
Transaction Modifiers applicable to Reason Code AT