Developer's Guide

Processors Requiring Additional Transaction Parameters
American Express
A
74 Payflow Pro Developer’s Guide
parameters described in Table A.2. There are a few exceptions. If you are not sure,
contact Customer Service. See “How to Contact Customer Support” on page 9 for
contact information.
TABLE A.2 American Express legacy parameters
Parameter Description Required Type Length
DESC Describes the transaction. No Alpha-
numeric
Brighton
40
Other
American
Express
platforms
23
DESC1 Describes the transaction. No Alpha-
numeric
40
DESC2 Describes the transaction. No Alpha-
numeric
40
DESC3 Describes the transaction. No Alpha-
numeric
40
DESC4 Describes the transaction. No Alpha-
numeric
40
FIRSTNAME Account holder's first and last name. Note: Even
though the parameter name indicates only the first
name, this single parameter holds all of the
person's name information (both first and last
name, at a minimum).
No Alpha-
numeric
13
LASTNAME Account holder's last name. No Alpha-
numeric
13
INVNUM Merchant invoice number. The merchant invoice
number is used for authorizations and settlements
and, depending on your merchant bank, will
appear on your customer's credit card statement
and your bank reconciliation report. If you do not
provide an invoice number, the transaction ID
(PNREF) will be submitted.
No Alpha-
numeric
9
ORDERDATE Specifies an order date.
For example, July 28, 2003 is 072803.
Format: mmddyy (with no slashes or dashes)
No Numeric 7