Integration Guide

Table Of Contents
PayPal Payments Standard Integration Guide June 2012 17
Intended Audience
Intended Audience
This guide is for:
Merchants and developers who want to understand:
The checkout experiences that people go through when they make payments with PayPal
Payments Standard payment buttons
The influence of account profile settings on the way PayPal Payments Standard works
Developers who want to learn how to integrate PayPal with websites by using PayPal
Payments Standard
Revision History
The following table lists the revisions made to the PayPal Payments Standard Integration
Guide.
Date Published Description
June 2012 Maintenance release.
April 2012 Updated references to Website Payments Standard and Website Payments Pro to
PayPal Payments Standard and PayPal Payments Pro, respectively.
November 2011 Updated screen shots to show the user interface changes. See “Single-Item
Payments – Buy Now Buttons” on page 21
, “The PayPal Shopping Cart – Add
to Cart and View Cart Buttons” on page 247
, and “Third-Party Shopping Carts –
The Cart Upload Command” on page 317
.
May 2010 Added Automatic Billing and Payment Plan buttons, see “The Checkout
Experience with Automatic Billing Buttons” on page 189 and “The Checkout
Experience with Installment Plan Buttons” on page 220
. Updated Subscribe
buttons with priced options for different billing cycles. See “Recurring
Payments – Subscribe Buttons” on page 113
.
January 2010 For third-party shopping carts, added the Instant Update API to “The PayPal
Shopping Cart – Add to Cart and View Cart Buttons” on page 247 and added
Instant Update HTML variables to ““HTML Variables for PayPal Payments
Standard” on page 417.
October 2009 Updated screen shots to show the user interface changes. See “Securing Your
PayPal Payments Standard Buttons” on page 337
, “Using Your PayPal Account
Profile” on page 349, and “Using Authorization & Capture” on page 389.
Added screen shots to illustrate the refund process. See “Issuing Refunds” on
page 401
.