API Overview

Acceptance Devices | PAX Acceptance Devices App Integration Guide
- Recent Revisions to This Document
- VISA Platform Connect: Specifications and Conditions for Resellers/Partners

Introduction to Acceptance Devices | PAX Acceptance Devices App

Payment Terminals Supported by the PAX Acceptance Devices App

Transaction Workflow for the PAX Acceptance Devices App

Getting Started with the Acceptance Devices App
- Set Up a PAX Terminal
- Load Paper in the PAX Terminal with an Integrated Printer
- Activating a Terminal in the Acceptance Devices App
  - Generate a Terminal Activation Code in the Business Center
  - Generate a Terminal Activation Code Using a REST API Request
    - Required Fields for Generating a Terminal Activation Code
    - REST Example: Generating a Terminal Activation Code
  - Enter an Activation Code in the Acceptance Devices App
- Getting Started with the Acceptance Devices App Server
  - Start the Acceptance Devices App Server
- Customizing the Acceptance Devices App
  - Customizable User Interface Parameters
  - Customizable Common Parameters
  - Customizable Local Mode Parameters
  - Customizable Standalone Mode Parameters
  - Customize Parameters in the Business Center
  - Retrieve Parameters Using a REST API Request
    - Required Fields to Retrieve Parameters Using a REST API Request
    - REST Example: Retrieve Parameters Using a REST API Request
  - Customize Parameters Using a REST API Request
    - Required Fields for Customizing Parameters Using a REST API Request
    - REST Example: Customizing Parameters Using a REST API Request

Local Mode Payment Services
- Communication Protocol Used in Local Mode
- Retrieving the Root CA Certificate
  - Retrieve the Root CA Certificate in the Business Center
  - Retrieve the Root CA Certificate Using a REST API Request
    - Required Fields to Retrieve the Root CA Certificate Using a REST API Request
    - REST Example: Retrieve the Root CA Certificate Using a REST API Request
- Activating a Secure mTLS Connection
  - Generate a POS Connection Code for the Point-of-Sale System
  - Request Certificates for the Point-of-Sale System
    - Required Fields to Request Certificates for the Point-of-Sale System
    - REST Example: Request Certificates for the Point-of-Sale System
- Implementing Hostname Validation in Local Mode
- Sale
  - Required Fields for a Sale
  - REST Example: Sale
- Refund
  - Required Fields for a Refund
  - Optional Fields for a Refund
  - REST Example: Refund
- Stand-Alone Credit
  - Required Fields for a Stand-Alone Credit
  - REST Example: Stand-Alone Credit
- Request a Check Transaction Status
  - Required Fields to Request a Check Transaction Status
  - REST Example: Request a Check Transaction Status
- Cancel Transaction
  - Required Fields to Cancel Transaction
  - REST Example: Cancel Transaction
- Sale with On-Reader Tipping
  - Required Fields for a Sale with On-Reader Tipping
  - REST Example: Sale with On-Reader Tipping
- Sale with On-Receipt Tipping
  - Required Fields for a Sale with On-Receipt Tipping
  - REST Example: Sale with On-Receipt Tipping
  - Tip Adjust
    - Required Fields for a Tip Adjust
    - REST Example: Tip Adjust
- Token Refund
  - Required Fields for a Token Refund
  - REST Example: Token Refund
- Pre-Authorization
  - Required Fields for a Pre-Authorization
  - REST Example: Pre-Authorization
- Incremental Authorization
  - Required Fields for an Incremental Authorization
  - REST Example: Incremental Authorization
- Capture
  - Required Fields for a Capture
  - Optional Fields for a Capture
  - REST Example: Capture
- Mail Order or Telephone Order
  - Required Fields for Mail Order or Telephone Order
  - Optional Fields for Mail Order or Telephone Order
  - REST Example: Mail Order or Telephone Order Sale
- Account Verification
  - Required Fields for an Account Verification
  - REST Example: Account Verification
- Offline Transactions
  - Enable or Disable Offline Mode in the Acceptance Device App
  - Enable or Disable Offline Mode Using a REST API Request
    - Required Fields to Enable or Disable Offline Mode Using a REST API Request
    - REST Example: Enable or Disable Offline Mode Using a REST API Request
  - Offline Sale
    - Required Fields for an Offline Sale
    - REST Example: Offline Sale
  - Offline Refund
  - Submit an Offline Transactions Batch for Authorization
- Cashback
  - Required Fields for a Cashback
  - REST Example: Cashback
- Sale with Installment Details
  - Required Fields for a Sale with Installment Details
  - Optional Fields for a Sale with Installment Details
  - REST Example: Sale with Installment Details
- Sale with Payment Facilitator Details
  - Required Fields for a Sale with Payment Facilitator Details
  - Optional Fields for a Sale with Payment Facilitator Details
  - REST Example: Sale with Payment Facilitator Details
- Sale with Tax Details
  - Required Fields for a Sale with Tax Details
  - Optional Fields for a Sale with Tax Details
  - REST Example: Sale with Tax Details
- Electronic Benefits Transfer
  - Required Fields for Electronic Benefits Transfer
  - Optional Fields for Electronic Benefits Transfer
  - REST Example: Electronic Benefits Transfer SNAP Sale
- Custom Card Read
  - Required Fields to Perform a Custom Card Read
  - REST Example: Custom Card Read
- Printing a Customer or Merchant Receipt
  - Required Fields to Print a Customer or Merchant Receipt
  - REST Example: Print a Customer or Merchant Receipt

Cloud Mode Payment Services
- Communication Protocol Used in Cloud Mode
- Generating a Bearer Token for Authentication
  - Generate a Bearer Token for Authentication
- Sale
  - Required Fields for a Sale
  - REST Example: Sale
- Refund
  - Required Fields for a Refund
  - Optional Fields for a Refund
  - REST Example: Refund
- Stand-Alone Credit
  - Required Fields for a Stand-Alone Credit
  - REST Example: Stand-Alone Credit
- Requesting a Check Transaction Status
  - Required Fields to Request a Check Transaction Status
  - REST Example: Request a Check Transaction Status
- Cancel Transaction
  - Required Fields to Cancel Transaction
  - REST Example: Cancel Transaction
- Sale with On-Reader Tipping
  - Required Fields for a Sale with On-Reader Tipping
  - REST Example: Sale with On-Reader Tipping
- Sale with On-Receipt Tipping
  - Required Fields for a Sale with On-Receipt Tipping
  - REST Example: Sale with On-Receipt Tipping
  - Tip Adjust
    - Required Fields for a Tip Adjust
    - REST Example: Tip Adjust
- Token Refund
  - Required Fields for a Token Refund
  - REST Example: Token Refund
- Pre-Authorization
  - Required Fields for a Pre-Authorization
  - REST Example: Pre-Authorization
- Incremental Authorization
  - Required Fields for an Incremental Authorization
  - REST Example: Incremental Authorization
- Capture
  - Required Fields for a Capture
  - Optional Fields for a Capture
  - REST Example: Capture
- Mail Order or Telephone Order
  - Required Fields for Mail Order or Telephone Order
  - Optional Fields for Mail Order or Telephone Order
  - REST Example: Mail Order or Telephone Order Sale
- Account Verification
  - Required Fields for an Account Verification
  - REST Example: Account Verification
- Cashback
  - Required Fields for a Cashback
  - REST Example: Cashback
- Sale with Installment Details
  - Required Fields for a Sale with Installment Details
  - Optional Fields for a Sale with Installment Details
  - REST Example: Sale with Installment Details
- Sale with Payment Facilitator Details
  - Required Fields for a Sale with Payment Facilitator Details
  - Optional Fields for a Sale with Payment Facilitator Details
  - REST Example: Sale with Payment Facilitator Details
- Sale with Tax Details
  - Required Fields for a Sale with Tax Details
  - Optional Fields for a Sale with Tax Details
  - REST Example: Sale with Tax Details
- Receiving Transaction Responses Asynchronously
  - Receive Transaction Responses Asynchronously
  - REST Example: Receive Transaction Responses Asynchronously
  - Check Transaction Events
    - Required Fields to Check Transaction Events
    - REST Example: Check Transaction Events
- Electronic Benefits Transfer
  - Required Fields for Electronic Benefits Transfer
  - Optional Fields for Electronic Benefits Transfer
  - REST Example: Electronic Benefits Transfer SNAP Sale
- Custom Card Read
  - Required Fields for a Custom Card Read
  - REST Example: Custom Card Read
- Printing a Customer or Merchant Receipt
  - Required Fields to Print a Customer or Merchant Receipt
  - REST Example: Print a Customer or Merchant Receipt

Standalone Mode Payment Services
- Enable Standalone Mode in the Acceptance Devices App
- Sale
- Refund
- Stand-Alone Credit
- Sale with On-Reader Tipping
- Pre-Authorization
- Capture
- Mail Order or Telephone Order Sale
- Account Verification
- Offline Transactions
  - Enable or Disable Offline Mode
  - Offline Sale
  - Offline Refund
  - Submit an Offline Transactions Batch for Authorization
- Sale with Installment Details
- Sale with Tax Details
- Print a Customer or Merchant Receipt
- Email a Customer Receipt

Release Notes for PAX Acceptance Devices App
- Acceptance Devices App Version 1.18.0 Release Notes
  - New Features
  - Improvements
  - Fixed Issues
- Acceptance Devices App Version 1.17.0 Release Notes
  - New Features
  - Improvements
  - Fixed Issues
- Acceptance Devices App Version 1.16.0 Release Notes
  - Improvements
  - Fixed Issues
- Acceptance Devices App Version 1.15.0 Release Notes
  - New Features
  - Improvements
  - Fixed Issues
- Archive of Release Notes
  - Acceptance Devices App Version 1.14.0 Release Notes
    - New Features
    - Improvements
  - Acceptance Devices App Version 1.13.0 Release Notes
    - Improvements
  - Acceptance Devices App Version 1.12.0 Release Notes
    - Improvements
  - Acceptance Devices App Version 1.11.0 Release Notes
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.10.0 Release Notes
    - New Features
    - Improvements
  - Acceptance Devices App Version 1.9.0 Release Notes
    - New Features
    - Improvements
  - Acceptance Devices App Version 1.8.0 Release Notes
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.7.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.6.0 Release Notes
    - Improvements
  - Acceptance Devices App Version 1.5.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.4.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.3.0 Release Notes
    - New Features
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.2.0 Release Notes
    - Improvements
    - Fixed Issues
  - Acceptance Devices App Version 1.1.0 Release Notes
    - New Features

On This Page

Offline Refund

Follow these steps to process an offline refund when the app is in Local mode and Offline mode is enabled to process transactions.

In the Acceptance Devices app, tap

Settings

.

Enter your Acceptance Devices app passcode.

Tap

Offline Mode

.

Tap the transaction you want to refund.

Tap

Refund

.

Enter the transaction amount.

Tap

Refund

to start the transaction.

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