Developer's Guide

Website Payments Pro Developer’s Guide 59
PayPal Express Checkout Transaction Processing
PayPal Express Checkout Transaction Parameter Descriptions
6
Do Express Checkout Payment Request Parameters
In addition to the parameters required by all transaction types described in Chapter 3,
“Creating a Simple Transaction Request,” the Do Express Checkout Payment request
parameters include:
z The parameters listed below and described in Table 4.1, “Transaction parameters.
BUTTONSOURCE
CUSTOM
FREIGHTAMT
HANDLINGAMT
INVNUM
ITEMAMT
L_AMTn
L_DESCn
L_QTYn
L_TAXAMTn
NOTIFYURL
ORDERDESC
SHIPTOCITY
SHIPTOCOUNTRY
SHIPTOSTATE
SHIPTOSTREET
SHIPTOZIP
z The required parameters described in Table 6.6.
TABLE 6.6 Do Express Checkout Payment request parameters
Parameter Name Description Required Type
Max.
Length
TOKEN String value returned by Set Express
Checkout response.
Yes String 20
ACTION Is D to indicate this is a Do Express
Checkout Payment request.
Yes Alpha 1
PAYERID Unique PayPal customer account
identification number. This value is
returned in the URL when the
customer is redirected to your website.
Yes String 13