Developer's Guide

Table Of Contents
Submitting Purchasing Card Level 2 and 3 Transactions
Heartland Purchasing Card Transaction Processing
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182 07 January 2014 Gateway Developer Guide and Reference
Heartland Level 3 MasterCard Extended Data
The parameters listed in the table below apply to Level 3 MasterCard transactions as extended
data.
Heartland Level 3 MasterCard Line Item Detail Records
NOTE: For these values, n is a sequence counter that should begin with 1 and increase in
sequence. Each line item should also contain quantity (
L_QTYn) and unit price
(
L_COSTn) fields.
NATIONALTAXAMT (Optional) National tax amount. You may omit this parameter if there is no such tax.
Character length and limitations: 12 numeric characters
INVNUM (Required) Purchase Order number or customer reference ID. The PNREF value is
sent if no value is provided.
Character length and limitations: 9 alphanumeric characters
Parameter Description
FREIGHTAMT (Optional) Freight amount.
Character length and limitations: 12 numeric characters
DUTYAMT (Optional) Duty amount.
Character length and limitations: 12 numeric characters
SHIPTOZIP (Required) The zip code of the address to which the goods are shipped.
Character length and limitations: 10 alphanumeric characters
SHIPFROMZIP (Required) The postal code (called zip code in the USA) from which shipping occurs.
Character length and limitations: 10 alphanumeric characters
SHIPTOCOUNTRY (Optional) Destination country code. The Payflow API accepts 3-digit numeric
country codes. Refer to:
http://en.wikipedia.org/wiki/ISO_3166-1_numeric.
Character length and limitations: 3 alphanumeric characters
ALTTAXAMT (Optional) Alternate tax amount.
Character length and limitations: 9 numeric characters
Parameter Description
L_COMMCODEn (Optional) Item commodity code.
Character length and limitations: 12 alphanumeric characters
L_DESCn (Required) Item descriptor.
Character length and limitations: 35 alphanumeric characters
L_UPCn (Optional) Product code.
Character length and limitations: 12 alphanumeric characters
Parameter Description