Developer's Guide

Table Of Contents
Credit Card Transactions
Recharging to the Same Credit Card (Reference Transactions)
38 Payflow Pro Developer’s Guide
IMPORTANT: If there are multiple transactions with a particular CUSTREF value, then the
Inquiry transaction returns only the last transaction with the specified
CUSTREF. So, to ensure that you can always access the correct transaction,
you must use a unique CUSTREF when submitting any transaction, including
retries.
Inquiry Transaction Parameter String Using the CUSTREF
This is an example Inquiry transaction parameter string using the CUSTREF:
TRXTYPE=I&TENDER=C&PARTNER=PayPal&VENDOR=SuperMerchant&USER=SuperMerchant&P
WD=x1y2z3&CUSTREF=Inv00012345
Recharging to the Same Credit Card (Reference Transactions)
If you need to recharge a credit card and you are not storing the credit card information in your
local database, you can perform a reference transaction. A reference transaction takes the
existing credit card information that is on file and reuses it.
When To Use a Reference Transaction
Say that Joe Smith purchases a holiday gift from your web site store and requests that it be sent
by UPS ground service. That evening, Joe becomes concerned that the item might not arrive in
time for the holiday. So he calls you to upgrade shipping to second-day air. You obtain his
STARTTIME (Optional) For Inquiry transactions when using CUSTREF to specify the
transaction.
ENDTIME specifies the end of the time period during which the transaction
specified by the CUSTREF occurred. See STARTTIME.
ENDTIME must be less than 30 days after STARTTIME. An inquiry cannot be
performed across a date range greater than 30 days.
If you set ENDTIME, and not STARTTIME, then STARTTIME is defaulted to 30 days
before ENDTIME.
If neither STARTTIME nor ENDTIME is specified, then the system searches the last
30 days.
Limitations: 14 numeric characters in the format yyyymmddhhmmss.
ENDTIME (Optional) For Inquiry transactions when using CUSTREF to specify the
transaction.
ENDTIME specifies the end of the time period during which the transaction
specified by the CUSTREF occurred. See STARTTIME.
Limitations: 14 numeric characters.
T
ABLE 4.10 Inquiry transaction request parameters when using the CUSTREF
Parameter Description