API Overview

Unified Checkout Integration
- Recent Revisions to This Document
- VISA Platform Connect: Specifications and Conditions for Resellers/Partners

Introduction to Unified Checkout Integration

Unified Checkout Integration Flow
- Enabling Unified Checkout Integration in the Business Center

Server-Side Set Up
- Capture Context

Client-Side Set Up
- Loading the JavaScript Library and Invoking the Accept Function
  - JavaScript Example: Initializing the SDK
- Adding the Payment Application and Payment Acceptance
  - JavaScript Example: Setting Up with Full Sidebar
  - JavaScript Example: Setting Up with the Embedded Component

Transient Tokens
- Transient Token Format
- Token Verification
- Support for Dual-Branded Cards

Authorizations with a Transient Token
- REST Example: Requesting an Authorization with a Transient Token

Capture Context API
- REST Example: Requesting the Capture Context

Payment Details API
- REST Example: Retrieving Transient Token Payment Details

Unified Checkout Integration Configuration
- Enable Digital Payments
  - Enrolling in Apple Pay
  - Preparing a Device for Testing Apple Pay on Unified Checkout Integration
  - Enabling Click to Pay
  - Enrolling in Google Pay
  - Managing Google Pay Authentication Types
- Manage Permissions
  - Managing Permissions as a Direct Merchant
  - Managing Permissions as a Portfolio Administrator

Test Your Unified Checkout Integration Configuration
- Customer Authentication
  - Set Up Customer Authentication for Visa
  - Authentication Methods

Unified Checkout Integration UI
- Apple Pay UI
- Click to Pay UI
- Google Pay UI
- Manual Payment Entry UI
- Pay with Bank Account UI
- Paze UI

JSON Web Tokens

JavaScript API Reference
- Class: Accept
- Class: AcceptError
- Class: UnifiedPayments

Supported Countries for Digital Payments
- Supported Countries for Digital Payments A-D
- Supported Countries for Digital Payments E-K
- Supported Countries for Digital Payments L-R
- Supported Countries for Digital Payments S-Z

Supported Locales

Reason Codes

Test Card Numbers

On This Page

Recent Revisions to This Document

25.04

Added information about choosing your preferred card number prefix length and supported scenarios. See the Include Card Prefix sections of these topics:

Capture Context

Capture Context API

25.03

Replaced check
digital payment method with eCheck
digital payment method throughout Capture Context.

Corrected the example code in REST Example: Requesting the Capture Context.

Added information on using customer authentication with

Click to Pay

for Visa transactions. See Customer Authentication.

25.02

Added optional setup parameters to control the types of credentials that Google Pay on Unified Checkout Integration receives from Google. See Managing Google Pay Authentication Types.

Added test card numbers. See Test Card Numbers.

25.01

Updated the Important note about China UnionPay cards that do not have CVNs. See Capture Context.

Added steps for enrolling in Apple Pay. See Preparing a Device for Testing Apple Pay on Unified Checkout Integration.

24.10

Capture Context: Updated the capture context request sections to include the most recent client version and allowed payment types. See Capture Context and Capture Context API.
Dual-Branded and Co-Badged Cards: Added information about dual-branded cards. See Support for Dual-Branded Cards.

24.09

Added information about China UnionPay cards that do not have a card verification number (CVN) and expiration date. See the Important note in Capture Context.

24.08

Added a note about transient token expiration. See Authorizations with a Transient Token.

Added the Unified Checkout Integration JavaScript Reference. See JavaScript API Reference.

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