Integration Guide
Table Of Contents
- Website Payments Pro Integration Guide
- Contents
- Preface
- Introducing Website Payments Pro
- Introducing Direct Payment
- Introducing Express Checkout
- Express Checkout Button and Logo Image Integration
- PayPal Name-Value Pair API Basics
- Implementing the Simplest Express Checkout Integration
- Testing an Express Checkout Integration
- Customizing Express Checkout
- Implementing the Instant Update API
- Immediate Payment
- Handling Payment Settlements
- Handling Recurring Payments
- How Recurring Payments Work
- Recurring Payments Terms
- Recurring Payments With Express Checkout
- Recurring Payments With Direct Payments
- Options for Creating a Recurring Payments Profile
- Recurring Payments Profile Status
- Getting Recurring Payments Profile Information
- Modifying a Recurring Payments Profile
- Billing the Outstanding Amount of a Profile
- Recurring Payments Notifications
- Using Other PayPal API Operations
- Integrating giropay with Express Checkout
Website Payments Pro Integration Guide October 2009 15
Introducing Direct Payment
Additional Recommendations for Checkout With Direct Payment
2
z Use the optional Invoice ID field to prevent duplicate charges. PayPal ensures that an
Invoice ID is used only once per account. Duplicate requests with the same Invoice ID
result in an error and a failed transaction.