User Guide
Table Of Contents
- Button Manager API (NVP)
- Preface
- Intended Audience
- Revision History
- PayPal Payments Standard Button Manager API Overview
- Using the Button Manager API With NVP
- Button Manager API Reference
- HTML Variables for PayPal Payments Standard
- Technical HTML Variables
- HTML Variables for Individual Items
- HTML Variables for Payment Transactions
- HTML Variables for Shopping Carts
- HTML Variables for Recurring Payments Buttons
- HTML Variables for Displaying PayPal Checkout Pages
- HTML Variables for Filling Out PayPal Checkout Pages Automatically
- HTML Variables for the Instant Update API
HTML Variables for PayPal Payments Standard
HTML Variables for the Instant Update API
A
74 April 2012 Button Manager NVP API
length_unit Optional Unit of measure for the value specified by length_x
Allowable values are any values that you choose to provide.
PayPal passes the value to your callback server in callback
requests.
Name
Required
or
Optional Description
Character
Length