Developer's Guide

Payflow Pro Developer’s Guide 75
Processors Requiring Additional Transaction Parameters
First Data Merchant Services (FDMS) South
A
First Data Merchant Services (FDMS) South
FDMS South, Additional Credit Card Parameters
In addition to the parameters in Table 4.1 , “Credit card transaction request parameters,”
FDMS South accepts the following parameters:
First Data Merchant Services (FDMS) North
FDMS North, Additional Credit Card Parameters
In addition to the parameters in Table 4.1 , “Credit card transaction request parameters,”
FDMS North (also known as FDMS CardNet) accepts the parameters in Table A.5.
FDMS North supports partial authorization reversals for Visa only when the capture amount is
less than the authorization amount; full Authorization reversals are not supported. FDMS
North does not support unreferenced credits.
TABLE A.4 FDMS South additional parameters
Parameter Description Required Type Length
SWIPE Allows Track 1 and Track 2 data to be passed to enable a
card-present transaction.
No Alpha-
numeric
80
T
ABLE A.5 FDMS North additional parameters
Parameter Description Required Type Length
DESC Use the DESC* parameters to pass in your DBA name
and other data describing the transaction. This
information will be displayed in the end user’s
statement.
Note: FDMS North passes the descriptive data to the
card associations with the following character
lengths:
z Visa: 25
z MasterCard: 22
z AMEX: 20
z DISC: 22
Some card associations truncate the value to 19
characters. If you have questions, consult the card
association.
No Alpha-
numeric
25