
Performing Credit Card Transactions
Parameters Used in Credit Card Transactions
3
20 Payflow Pro Developer’s Guide
z Appendix C, “Additional Reporting Parameters,” provides a list of parameters that you can
pass for reporting purposes.
TABLE 3.2 Credit-card transaction parameters
Parameter Description Required Type
Max.
Length
ACCT Credit card or purchase card number.
This value may not contain spaces, non-numeric
characters, or dashes. For example,
ACCT=5555555555554444
Yes
1
Numeric 19
AMT Amount (US Dollars) U.S. based currency.
Specify the exact amount to the cent using a decimal
point—use 34.00, not 34. Do not include comma
separators—use 1199.95 not 1,199.95.
Your Internet Merchant Account provider may
stipulate a maximum amount.
Yes
1
Numeric 10
AUTHCODE AUTHCODE is returned only for approved Voice
Authorisation transactions. AUTHCODE is the
approval code obtained over the telephone from the
processing network.
req’d for
Voice
Authorisat
ion only.
Alpha-
numeric
6
COMMENT1 Merchant-defined value for reporting and auditing
purposes.
No Alpha-
numeric
128
COMMENT2 Merchant-defined value for reporting and auditing
purposes.
No Alpha-
numeric
128
CURRENCY One of the following three-character currency
codes:
z USD (US dollar)
z EUR (Euro)
z GBP (UK pound)
z CAD (Canadian dollar)
z JPY (Japanese Yen)
z AUD (Australian dollar)
NOTE: CURRENCY is applicable only to
processors that support transaction-level
currency. It is not applicable to Australian
Payflow Pro merchants.
No Alpha 3
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