Developer's Guide

Table Of Contents
Submitting Purchasing Card Level 2 and 3 Transactions
American Express Purchasing Card Transaction Processing
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166 07 January 2014 Gateway Developer Guide and Reference
Accepted BIN Ranges
The following BIN ranges are accepted for American Express Level 2 and Level 3
transactions:
37326
37429
37857
37859
37873
37965
American Express Purchasing Card Transaction Processing
The American Express supports Level 2 transaction data.
NOTE: Most merchants in the United States follow American Express reporting and
statement requirements.International merchants now follow these requirements as
well, but there maybe a few exceptions. If you are not sure, contact your American
Express Representative.
American Express Level 2 Parameters for American Express
The parameters to meet American Express reporting and statement requirements are described
in the following tables.
CPC Level 2 Transaction Advice Addendum Parameters
Field Description
PONUM (Required) Purchase order number.
Character length and limitations: 17 alphanumeric characters
SHIPTOZIP (Optional) Ship-to postal code (called zip code in the USA). This field must contain
one of the following values:
Zip code of the destination where the merchandise is to be shipped
(If the above is not available) Zip code of the location where the merchant
executed the transaction
Character length and limitations: 15 alphanumeric characters
TAXAMT (Optional) Total tax amount. Must include a decimal and the exact amount to the cent
(42.00, not 42). Do not include comma separators (1234.56 not 1,234.56).
Character length and limitations: 12 numeric characters
L_DESC1 (Optional) Description of this line item; if not provided, DESC1 (if present) is used.
Character length and limitations: 140 alphanumeric characters