Integration Guide

Table Of Contents
Single-Item Payments – Buy Now Buttons
Creating Advanced Buy Now Buttons on the PayPal Website
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38 September 2008 Website Payments Standard Integration Guide
In addition to HTML code, PayPal generates URL code for email payment links. Use email
payment links to add Buy Now functionality to your email messages. If your web editing tool
or your service provider does not allow you to paste HTML code onto your webpages, you
may be able to paste the URL code for email payment links onto your webpages instead.
Protecting HTML Code for Payment Buttons
When you create Buy Now code with tools on the PayPal website, PayPal lets your protect the
HTML button code that it generates by encrypting part of it. Protecting the HTML code of
your payment buttons helps protect against malicious tampering and fraudulent payments.
IMPORTANT: Merchants with significant payment volume are required to take precautions
on securing Website Payments Standard buttons.
For more information, see Chapter 6, “Securing Your Website Payments Standard Buttons
Using the Button Creation Tool for Advanced Buy Now Buttons
Read the following topics to learn how to use the button creation tool for Buy Now buttons:
z “The Basic Steps for Using the Tool With Buy Now Buttons” on page 38
z “Saving Buy Now Buttons in Your PayPal Account” on page 39
z “Tracking Inventory” on page 39
z “Adding Advanced Features to Buy Now Buttons With HTML Variables” on page 40
z “Step 1 – Specifying Basic Features of Your Buy Now Button” on page 40
z “Step 2 – Tracking Inventory With Your Buy Now Button” on page 44
z “Step 3 – Adding Advanced Features to Your Buy Now Button” on page 47
z “Copying and Pasting the Buy Now Code” on page 50
N OTE: If JavaScript is disabled in your browser, PayPal provides an alternative tool described
in “Creating Advanced Buy Now Buttons With JavaScript Disabled” on page 52.
The Basic Steps for Using the Tool With Buy Now Buttons
The button creation tool for Buy Now buttons is a single webpage with three sections:
z Step 1 – Choose button type and enter payment details – This section lets you specify
the details of your Buy Now button. You can specify product options that buyers can
choose, and you can specify item-specific charges for shipping and tax.
z Step 2 – Track inventory (optional)This section lets you control whether to save your
button in your PayPal account. If you save your button, you can enter information that
PayPal uses to track inventory on the item.
z Step 3 – Customize advanced features (optional) – This section lets you work with
advanced features of Buy Now buttons, including letting buyers change item quantities. If
you are familiar with HTML programming and the advanced HTML variables supported
by Website Payments Standard buttons, you can enter them here.