Request Fields

Field
Limits
Values/Formats
ACK
1 byte
Y for Yes
N for No
ACTION
Must select one of the values
StartSession
GetResult
Ack
AMT
Numbers; decimals
Must include the dollar and cents (i.e. 1.00 and not 1)
CUSTEMAIL
Up to 40 characters; alphanumeric;

Can include: @ . - _ ! # $ +

Should be standard e-mail format
DESC
Up to 40 characters; alphanumeric;

Can include: " ' , . : ; ? ! + - _ / # and spaces

INV
5-20 bytes; alphanumeric
LANG
1 character
E for English
F for French
PASS
Up to 16 bytes; alphanumeric; case sensitive
TERMID
8 characters
TYPE
1 byte
W for web-redirect
REFNUM
10-40 bytes; alphanumeric; dashes
REQUESTID
5-20 bytes; numeric
p

Backslashes are not permitted in any transaction data.
'Alphanumeric' means all alphabetical characters (a-z and A-Z) and all digits (0-9). This does not include spaces or any other characters.
'Numeric' means all numeric digits (0-9). This does not include spaces or any other character.
If spaces, symbols or punctuation is allowed, it will be stated under the LIMITS column.