API Overview

Payments Developer Guide
- Recent Revisions to This Document

Standard Payment Processing
- Pre-Authorizations
  - Required Fields for a Pre-Authorization
  - Simple Order Example for China UnionPay: Processing a Pre-Authorization
- Authorization Reversal
  - Required Fields for Processing an Authorization Reversal
  - Simple Order Example: Processing an Authorization Reversal
- Sales
  - Required Fields for Processing a Sale
  - Simple Order Example for China UnionPay: Processing a Sale
- Captures
  - Required Fields for Capturing an Authorization
  - Simple Order Example: Capturing an Authorization
- Follow-On Credits
  - Required Fields for Processing a Follow-On Credit
  - Simple Order Example: Processing a Follow-On Credit
- Voids for a Capture or Credit
  - Required Fields for Voiding a Capture or Credit
  - Simple Order API Example: Voiding a Capture or Credit

China UnionPay Test Cards

Financial Institutions and Payment Networks

Financial institutions and payment networks enable payment services. These entities work together to complete the full payment cycle.

The China UnionPay payment processor is a direct connection to the UnionPay ISO endpoint. China UnionPay is for financial institutions that are located outside of China to process transactions directly with UnionPay.