Integration Guide

How Website Payments Standard Works
Related Online Information
1
24 November 2005 Website Payments Standard Checkout Integration Guide
z Instant Payment Notification (IPN) and Payment Data Transfer (PDT) are HTML FORM-
based mechanisms to send information about payments to programs on your website. IPN
and PDT are described in the
Order Management Integration Guide.
z Subscriptions and Recurring Payments, which are described in the Subscriptions and
Recurring Payments Guide
Website Payments Pro
Website Payments Pro consists of PayPal Express Checkout and the Direct Payment
Application Programming Interfaces (APIs). Rather than being based solely on HTML FORM
variables (as is Website Payments Standard), these products rely on the PayPal Web Services
API. For more information, see the
Website Payments Pro Integration Guide.
Authorization & Capture
Authorization & Capture supplements both Website Payments Standard and Website
Payments Pro with PayPal’s enhancements to conventional credit card authorization and
payment capture. It has both PayPal website tools and a Web Services Application
Programming Interface (API). For more information, see the
Authorization & Capture
Integration Guide.
Related Online Information
Consult the following URLs for information about PayPal’s fees, online security, user
agreement and related policies, online help, and customer service.
TABLE 1.2 Hyperlinks for Fees, Security, User Agreement, Policies, Online Help, and Customer
Service
Information URL
Fees https://www.paypal.com/fees
Online Security https://www.paypal.com/security
User Agreement
and Policies
https://www.paypal.com/cgi-bin/webscr?cmd=p/gen/ua/ua-outside
Online Help https://www.paypal.com/help
Customer Service https://www.paypal.com/wf