Developer's Guide

Preface
Where to Go for More Information
8 Website Payments Pro Developer’s Guide
z Chapter 6, “PayPal Express Checkout Transaction Processing”, explains how PayPal
Express Checkout works and describes additional (optional) parameters you can send
in PayPal Express Checkout transaction requests.
z Chapter 7, “PayPal Button Placement and Page Designs”,
z Chapter 8, “Responses to Transaction Requests”, describes parameters returned in
transaction responses.
z Appendix A, “Verbosity: Viewing Processor-Specific Transaction Results”, describes how
you can use the VERBOSITY parameter to control the kind and level of information you
want returned in a transaction response
z Appendix B, “ISO Country Codes”, lists the country codes you provide as transaction data
in certain transactions.
Where to Go for More Information
PayPal Manager Online Help describes the use of PayPal Manager — the web-based
administration tool that you can use to process transactions manually, issue credits
and generate reports. PayPal Manager provides links to the PayPal website, where you can
perform additional tasks such as resolving disputes. See the Manager Online Help for details.
Getting Started with PayPal Manager contains instructions on how to use PayPal Manager,
including testing credit card numbers and Direct Payments.
For answers to specific questions about Payflow products, search PayPal’s Knowledge Base
at the following URL:
http://knowledge.paypal.com/.
How to Contact Customer Service
For problems with transaction processing or your connection to the server, contact Customer
Service at [e-mail].