Developer's Guide

Credit Card Transactions
Submitting Purchasing Card Transactions
42 Payflow Pro Developer’s Guide
z Paymentech Salem (New Hampshire)
z Paymentech Tampa
z TSYS Acquiring Solutions
Card-present Transaction Syntax
Use the SWIPE parameter to pass the Track 1 or Track 2 data (the card’s magnetic stripe
information). Include either Track 1 or Track 2 data—not both (up to 80 alphanumeric
characters). If Track 1 is physically damaged, the POS application can send Track 2 data
instead.
The track data includes the disallowed = (equal sign) character. To enable you to use the data,
the SWIPE parameter must include a length tag specifying the number of characters in the
track data. For this reason, in addition to passing the track data, the POS application must
count the characters in the track data and pass that number. Length tags are described in
“Using Special Characters in Values” on page 20. The length tag in the following example is
[40].
Do not include the ACCT or EXPDATE parameters in card-present transactions, as this data is
included in the SWIPE value.
This is an example card-present transaction parameter string:
“TRXTYPE=S&TENDER=C&PARTNER=PayPal&USER=SuperMerchant&PWD=SuperMerchant&SWI
PE[40]=;4912000033330026=15121011000012345678?&AMT=21.00”
Submitting Purchasing Card Transactions
A purchasing card (also referred to as a commercial card, corporate card, procurement card or
business card) is a credit card that is issued at the request of an employer. It is usually reserved
for business-related charges. The card issuer provides specialized reporting for this card type
so the employer can monitor the use of the card. There is no method for determining whether a
card is a purchase card or a commercial card based on the card number.
To obtain the best bank interchange rates for commercial cards, you must pass specific
additional transaction information. Commercial card support and parameters vary from
processor to processor. See“Submitting Purchasing Card Level 2 and Level 3 Transactions” on
page 97.
N OTE: Purchasing card transactions are not supported by the PayPal processor.
Using Address Verification Service
To qualify for the lowest bank rate, you must pass address verification service information—
street address and ZIP (postal) code.