Integration Guide

Customizing Express Checkout
PayPal Review Page Order Details
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52 October 2009 Express Checkout Integration Guide
New Total after applying incentives
Integrating eBay Incentives into the Express Checkout Flow
To integrate eBay incentives into the checkout flow:
1. Pass the following parameters and settings in the call to SetExpressCheckout.
– PAYMENTACTION must be Sale
– CHANNELTYPE must be eBayItem
NOTE: For eBay auctions, you cannot set PAYMENTACTION to Authorization or
Order. You must set PAYMENTACTION to Sale.
2. For each eBay line item, do one of the following (mutually exclusive choices) in the call to
SetExpressCheckout and in the call to DoExpressCheckoutPayment:
NOTE: DoExpressCheckoutPayment includes the same order details and eBay auction
parameters as SetExpressCheckout. It is strongly suggested that, if you pass
line-item detail parameter data in SetExpressCheckout, you pass the same
parameter data in the call to DoExpressCheckoutPayment. This ensures that
order details display on the PayPal Review page and payment is properly reflected
in My eBay and in PayPal transaction details.
– For each individual eBay entry, pass the values returned by eBay when setting up the
auction item descriptions in the parameters below:
L_EBAYITEMNUMBERn and L_EBAYITEMAUCTIONTXNIDn