User Guide

Table Of Contents
Button Manager NVP API April 2012 5
Preface
This document describes the Button Manager API for NVP.
Intended Audience
This document is intended for merchants and developers implementing PayPal Payment
Standard (previously known as Website Payments Standard) buttons using an API.
Revision History
Revision history for Button Manager API (NVP).
TABLE P.1 Revision History
Date Description
04/03/12 Updated references to Website Payments Standard and Website Payments Pro to
PayPal Payments Standard and PayPal Payments Pro, respectively.
02/13/12 Maintenance release.
05/10/10 Added information about installment plans, automatic billing, and subscribe
buttons.
02/03/10 Added error code.
01/11/10 Added download key information and updated for version 61.0.
06/03/09 Added HTML Variable appendix and updated for version 57.0.
03/31/09 Initial draft.