Developer's Guide

Table Of Contents
Payflow Pro Developer’s Guide 9
Preface
This guide describes Payflow Pro, a high performance TCP/IP-based Internet payment
solution and how to use it to process credit card. Payflow Pro is pre-integrated with leading e-
commerce solutions and is also available as a downloadable software development kit (SDK).
Scope
This guide explains how to integrate Payflow Pro into your website or application to process
credit card transactions over the Payflow payments gateway. It includes information and
special requirements for all supported processors. To process Express Checkout transactions
over the Payflow gateway, see the following Payflow guide: Express Checkout for Payflow
Pro.
Intended Audience
This guide assumes that its readers:
z Are experienced web or application developers
z Have a background in payments services
Related Documentation
For additional Payflow information,
z See the Payflow documentation set on PayPal Developer Central. Go to
https://www.paypal.com/developer and click the Documentation link on the Library tab.
z For more examples and very current information, see the Payflow developer forums.
For additional help, see the Help Center at the following URL:
https://www.paypal.com/us/cgi-
bin/helpweb?cmd=help.
How to Contact Customer Support
For problems with transaction processing or your connection to the server, contact Customer
Support by opening a ticket on the under Contact Support tab at
http://www.paypal.com/mts.