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About This Guide

Unified Checkout

Unified Checkout Flow
- Enabling Unified Checkout 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

Authorizations with a Transient Token
- Required Field for an Authorization with a Transient Token
- REST Example: Authorization with a Transient Token

Capture Context API
- Required Fields for Requesting the Capture Context
- REST Example: Requesting the Capture Context

Payment Details API
- Required Field for Retrieving Transient Token Payment Details
- REST Example: Retrieving Transient Token Payment Details

Unified Checkout Configuration
- Enable Digital Payments
  - Enabling Click to Pay
  - Enrolling in Google Pay
- Manage Permissions
  - Managing Permissions as a Direct Merchant
  - Managing Permissions as a Portfolio Administrator

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

JSON Web Tokens

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

VISA Platform Connect: Specifications and Conditions for Resellers/Partners

On This Page

REST API

`Unified Checkout`

Unified Checkout provides a single interface with which you can accept numerous types of digital payments.

Unified Checkout consists of a server-side component and a client-side JavaScript library.

The server-side component authenticates your merchant identity and instructs the system to act within your payment environment. The response contains limited-use public keys. The keys are for end-to-end encryption and contain merchant-specific payment information that drives the interaction of the application. The client-side JavaScript library dynamically and securely places digital payment options onto your e-commerce page.

The provided JavaScript library enables you to securely accept many payment options within your e‑commerce environment. Unified Checkout can be embedded seamlessly into your existing webpage, simplifying payment acceptance.

When a customer chooses a payment method from the button widget, Unified Checkout handles all of the interactions with the digital payment that was chosen. It also provides a response to your e-commerce system.

The figure below shows Unified Checkout with customer checkout payment options.

Example of the button widget interface and flow with various payment
options. — Button Widget

For examples of different payment method UIs through Unified Checkout, see Unified Checkout UI.