Integration Guide

Table Of Contents
Website Payments Standard Integration Guide September 2008 15
Preface
Intended Audience
P
Intended Audience
This guide is for:
z Merchants and developers who want to understand:
The checkout experiences that people go through when they make payments with
Website Payments Standard payment buttons
How account profile settings affect the way that Website Payments Standard works
z Developers who want to learn how to implement Website Payments Standard
Revision History
The following table lists the revisions made to the Website Payments Standard Integration
Guide.
TABLE P.2 Revision History for This Guide
Date Published Description
September 2008 Revised information on creating payment buttons on the PayPal website,
including saving buttons in your PayPal account and tracking inventory; see
button -specific chapters for details.
Added sample code for Add to Cart buttons that open the PayPal Shopping Cart
in the same window as the merchant website and how to use the shopping_url
variable to control which merchant page buyers return to when they click the
Continue Shopping button; see
“Sample HTML Code for Add to Cart
Buttons” on page 228
.
June 2008 Added chapter on Subscribe buttons; see
Chapter 3, “Recurring Payments –
Subscribe Buttons
.” Added chapter on Third-Party Shopping Carts; see
Chapter 5, “Third-Party Shopping Carts – The Cart Upload Command.”
March 2008 Changes to definition of authorization honor periods; see
“Honor Period and
Authorization Period” on page 321
.”
January 2008 Separate checkout experience and command for Donate buttons; see
Chapter 2,
“Contribution Payments – Donate Buttons
.”
August 2007 Shipping calculations with tiered rates in different destination regions; see
“Automatic Calculation of Shipping Charges (U.S. Merchants Only)” on
page 290
.
May 2007 Added information on securing buttons; see
Chapter 6, “Securing Your
Website Payments Standard Buttons
.”
April 2007 Added
Appendix B, “Address Handling (U.S. Merchants Only).”
October 2006 Minor clarifications.