API Overview

Click to Pay Drop-In UI Developer Guide
- Recent Revisions to This Document

Introduction to the Click to Pay Drop-In UI
- Click to Pay Customer Workflows
  - Recognized Click to Pay Customer
  - Unrecognized Click to Pay Customer
  - Guest Customer

Click to Pay Drop-In UI Flow
- Add Click to Pay to a Merchant Account
- Enable Click to Pay
  - Enabling Click to Pay Drop-In UI Using the API
    - Required Fields for Enabling Click to Pay Drop-In UI
    - Optional Fields for Enabling Click to Pay Drop-In UI
    - REST Example: Enabling Click to Pay Drop-In UI
  - Enabling Click to Pay in the Business Center

Server-Side Set Up

Client-Side Set Up
- Loading the JavaScript Library and Invoking the Accept Function
- Adding the Payment Application and Payment Acceptance

Transient Tokens

Payment Details API

Payment Credentials API

JavaScript API Reference

Unified Checkout Configuration
- Upload Your Encryption Key
  - Generate a Public Private Key Pair
  - Uploading Your Key Pair
- Manage Permissions
  - Managing Permissions as a Direct Merchant
  - Managing Permissions as a Portfolio Administrator
- Click to Pay Customer Authentication
  - Set Up Customer Authentication for Click to Pay
  - Enable Click to Pay Customer Authentication Using the API
    - Required Fields for Enabling Click to Pay Authentication
    - Optional Fields for Enabling Click to Pay Authentication
    - REST Example: Enabling Click to Pay Authentication
  - Enable Click to Pay Customer Authentication Using the Business Center

Update to Click to Pay Drop-In UI Version 1
- Update Reason Codes
- Version 1 Update Checklist

Click to Pay UI Guidelines
- Click to Pay UI Examples

Test Your Click to Pay Configuration
- Test Payment Details
- Handle Errors

Appendix
- Client Version History
- Customization Matrix
- JSON Web Tokens
- Reason Codes
- Supported Countries for Click to Pay
- Supported Locales

VISA Platform Connect: Specifications and Conditions for Resellers/Partners

On This Page

Enable `Click to Pay`

To enable Click to Pay on Unified Checkout, you must first register Click to Pay. This process sends the appropriate information to the digital payment systems and registers your page with each system.

Follow these steps to enable Click to Pay for Unified Checkout using the API or in the Business Center. You must follow these steps for each transacting merchant for which you want to enable Click to Pay.

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