Integration Guide

Table Of Contents
Express Checkout Integration Guide May 2010 57
Customizing Express Checkout
PayPal Review Page Order Details
6
Buyer protection programs require it
It enables buyers to see the transaction details in My eBay and in PayPal transaction
details
It enables buyers to redeem coupons and incentives they may have received from eBay
NOTE: Passing the same order details and eBay incentive parameters in the call to
DoExpressCheckoutPayment as well as SetExpressCheckout ensures that this
information displays on the PayPal Review page and payment is properly reflected
in My eBay and in PayPal transaction details.
3. It is recommended that you pass the string “eBay item” in L_DESCn and the eBay Item
Number in L_NUMBERn.
4. If you host the final payment confirmation page on your website by setting
useraction=continue in the redirect, you must show the discount amount resulting
from eBay incentives on that page. You can get the discount amount from the
PAYPALADJUSTMENT value returned in the response to GetExpressCheckoutDetails.
NOTE: eBay maintains detailed information about each item sold in eBay auctions. If you set
the value for SHIPPINGAMT in the call to SetExpressCheckout, for example, you
do not need to be concerned about the shipping cost for individual items. eBay
calculates incentives based on its database, not from the values you pass in the
SetExpressCheckout call.
The following SetExpressCheckout request example passes order details and eBay
incentives for two eBay auction items: