2009

Table Of Contents
Recurring Payments and Reference Transactions API Operations
DoReferenceTransaction API
138 08 April 2009 Name-Value Pair API Developer Guide
INVNUM (Optional) Your own invoice or tracking number.
Character length and limitations: 127 single-byte alphanumeric characters
BUTTONSOURCE (Optional) An identification code for use by third-party applications to identify
transactions.
Character length and limitations: 32 single-byte alphanumeric characters
NOTIFYURL (Optional) Your URL for receiving Instant Payment Notification (IPN) about this
transaction.
NOTE: If you do not specify this value in the request, the notification URL from your
Merchant Profile is used, if one exists.
Character length and limitations: 2,048 single-byte alphanumeric characters
Field Description