RDX Specification

Non-Payment Authentication Indicator Values

These values indicate the type of authentication request. This data element provides additional information to the ACS to determine the best approach for handling an authentication request. TransactionAmount and TransactionCurrency elements are optional; Required for 02-NPA if 3DS Requestor Authentication Indicator = 02 or 03.

ValueMessageVersion 2.2.xEMV 3DS Value
Payment transactionSupported01
Recurring transactionSupported02
Instalment transactionSupported03
Add cardSupported04
Maintain cardSupported05
Cardholder verification as part of EMV token ID&VSupported06

For more information, refer to the EMV 3-D Secure Protocol and Core Functions Specification.