2007

Name-Value Pair API Developer Guide and Reference April 2007 17
2
Accepting PayPal in Express
Checkout
By choosing Express Checkout, the customer can save time by skipping several checkout steps
using the billing and shipping information stored on PayPal.
This section describes how to use Express Checkout to accept payments using PayPal and
contains the following topics:
z “Basic Checkout with PayPal” on page 17
z “Controlling the Shipping Address Using SetExpressCheckout” on page 21
z “Changing the Language on the PayPal Login Page Using SetExpressCheckout” on
page 23
z “Changing the Logo on the PayPal Pages Using SetExpressCheckout” on page 23
z “Form-Filling Your Payment Review Page Using GetExpressCheckoutDetails” on page 24
z “Making a Sale Using DoExpressCheckoutPayment” on page 25
z “Changing the URL for IPN Using DoExpressCheckoutPayment” on page 25
z “Including Line Item Details Using DoExpressCheckoutPayment” on page 26
z “Including Subtotals Using DoExpressCheckoutPayment” on page 27
z “Updating Order Details Using DoExpressCheckoutPayment” on page 27
z “Updating the Shipping Address Using DoExpressCheckoutPayment” on page 28
Basic Checkout with PayPal
N OTE: See the Integrationshandbuch Express-Kaufabwicklung for details on Express
Checkout including page flow, integration points, button placement, and page design.
Express Checkout with PayPal requires the following steps:
1. Starting the Checkout Using SetExpressCheckout
2. Redirecting the Customer’s Browser to PayPal Login Page
3. Getting Payer Details Using GetExpressCheckoutDetails
4. Making a Sale Using DoExpressCheckoutPayment
In SetExpressCheckout response, you obtain a TOKEN that uniquely identifies this three-
step transaction. You pass this TOKEN in the request to GetExpressCheckoutDetails and
DoExpressCheckoutPayment. Both GetExpressCheckoutDetails and
DoExpressCheckoutPayment return this TOKEN in the response.
This example shows basic checkout using the minimum number of parameters.