
Processors Requiring Additional Transaction Parameters
Litle Additional Credit Card Parameters
A
120 07 February 2013 Gateway Developer Guide and Reference
INVNUM (Optional) Merchant invoice number. The merchant invoice number is used for
authorizations. If you do not provide an invoice number, the transaction ID (PNREF)
will be submitted.
Character length and limitations: 20 alphanumeric characters
MERCHANTCITY (Optional) The name of the city were the transaction took place.
If you are a third-party biller (bill for services or goods rendered by another
entity), you must enter the name of the city in which the seller is located.
If you are a mail order, phone order, or internet industry, you may substitute the
name of the city in which the merchant’s order processing facility is located.
Character length and limitations: 21 alphanumeric characters
MERCHANTURL (Optional) Merchant’s website. This information is usually displayed in the account
holder’s statement.
Character length and limitations: 40 alphanumeric characters
MERCHDESCR (Optional) Use this parameter to pass in your DBA name and other data describing
the transaction. This information is usually displayed in the account holder’s
statement.
Character length and limitations: 25 alphanumeric characters
MERCHSVC (Optional) Defaults to the city where the merchant outlet is located for retail and to
the merchant’s phone number for non-retail. For example, 800 111-1111. This
information is usually displayed in the account holder’s statement.
Character length and limitations: 13 alphanumeric characters
PONUM (Optional) Purchase order number.
Character length and limitations: 25 alphanumeric characters
REPORTGROUP (Optional) Category that the transaction is in, for example, coffee mugs. This field is
for your own use.
Character length and limitations: 25 alphanumeric characters
BILLTOSTREET2 (Optional) Second street address.
Character length and limitations: 35 alphanumeric characters
BILLTOSTREET3 (Optional) Third street address.
Character length and limitations: 35 alphanumeric characters
TAXAMT (Optional) Total tax amount.
Character length and limitations: Must include a decimal and be exact to the cent
(42.00, not 42) and exclude comma separators (1234.56 not 1,234.56). Examples:
tip=3.00, convenience charge=2.00. 12 numeric characters
TAXEXEMPT (Optional) Indicates whether the customer is tax exempt. It is one of the following
values:
Y – The customer is tax exempt.
N – The customer is not tax exempt (default).
Character length and limitations: 1 alpha character
Field Description
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