Integration Guide
Table Of Contents
- PayPal Express Checkout Integration Guide
- Contents
- Preface
- Getting Started With Express Checkout
- Express Checkout User Interface Requirements
- Related API Operations
- Integrating Express Checkout With PayPal SDKs
- Going Live With Your Express Checkout Integration
- Obtaining API Credentials
- PayPal Name-Value Pair API Basics
- PayPal SOAP API Basics
- PayPal WSDL/XSD Schema Definitions
- PayPal SOAP API Definitions
- Security
- SOAP RequesterCredentials: Username, Password, Signature, and Subject
- SOAP Service Endpoints
- SOAP Request Envelope
- Request Structure
- SOAP Message Style: doc-literal
- Response Structure
- Error Responses
- CorrelationID for Reporting Problems to PayPal
- UTF-8 Character Encoding
- Date/Time Formats
- Core Currency Amount Data Type
Express Checkout Integration Guide August 7, 2012 9
1
Getting Started With Express
Checkout
The Express Checkout button gives buyers another way to pay, and it complements your
existing payment solution. Online shoppers appreciate the convenience and security of PayPal,
where they can pay with their PayPal balance, bank account, or credit card.
Key Features of Express Checkout
Express Checkout is a fast, easy way for buyers to pay with PayPal. Express Checkout
eliminates one of the major causes of checkout abandonment by giving buyers all the
transaction details at once, including order details, shipping options, insurance choices, and
tax totals.
Studies show that adding the Express Checkout button to your website can increase your sales
up to 18 percent. The following web page shows the Express Checkout button side-by-side
with an existing checkout button: