Integration Guide

Table Of Contents
Customizing Express Checkout
PayPal Review Page Order Details
6
56 May 2010 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.
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
For multiple eBay items offered as a single order, pass the value returned by eBay when
setting up the auction order description in the parameter below:
L_EBAYITEMORDERIDn
If you are selling on eBay, you are required to perform this step (preferably by setting
L_EBAYITEMNUMBERn and L_EBAYITEMAUCTIONTXNIDn) for the following reasons: