User's Guide

Table Of Contents
Fraud Protection Services User’s Guide 47
Performing Buyer Authentication Transactions Using the SDK
Logging Transaction Information
6
Verify Enrollment Transactions
Verify Enrollment transactions are logged when all of the following items occur:
The merchant passes data needed to perform buyer authentications.
The server connects to Visa or MasterCard and gets a meaningful response (card
enrollment AUTHENTICATION_STATUS=E, U, or X). If status is Y, then the PAREQ
value is logged along with the Verify Enrollment transaction data.
Otherwise, the transaction is not logged.
Validate Authentication Transactions
The Buyer Authentication server will log the PARES value only when all of the following
items occur:
There is a matching PAREQ (by Message ID, not by content) in the database.
There is no other PARES with the same Message ID in the database. This means that if a
duplicate PARES is submitted, it is logged only once.