API Overview

Payments Developer Guide
- Recent Revisions to This Document

Introduction to Payments
- Financial Institutions and Payment Networks
  - Merchant Financial Institutions (Acquirers)
  - Customer Financial Institutions (Issuers)
  - Payment Networks
  - Payment Processors
- Card Types
  - Credit Cards
  - Debit Cards
- Transaction Types
  - Card-Not-Present Transactions
  - Authorizations with Card Verification Numbers
    - CVN Locations and Terminology
  - Token Management Service
- Payment Services
  - Authorizations
    - Micropayment Authorizations
    - Online Authorizations
    - Offline Authorizations
    - Incremental Authorizations
      - Scenario for the Incremental Authorization Service
    - Pre-Authorizations
    - Payment Network Token Authorizations
    - Authorization Workflow
  - Sales
    - Dual-Message Processing
      - Partial Authorizations
    - Single-Message Processing
  - Authorization Reversals
  - Captures
    - Capture Workflow
  - Credits
    - Credit Workflow
  - Voids
- Payment Features
  - Debit and Prepaid Card Payments
  - Mastercard Payment of Winnings Stand-Alone Credits
  - Payer Authentication
  - Relaxed Requirements for Address Data and Expiration Date in Payment Transactions
  - Introduction to Credentialed Transactions
  - Token Management Service
- Testing the Payment Services
  - Requirements for Testing
  - Test Card Numbers
  - Using Amounts to Simulate Errors
  - Test American Express Card Verification

Standard Payment Processing
- Additional Resources for Processing Payments
- Basic Authorizations
  - Declined Authorizations
  - Required Fields for Processing a Basic Authorization
  - REST Interactive Example: Processing a Basic Authorization
  - REST Example: Processing a Basic Authorization
- Authorizations with Line Items
  - Required Fields for Processing an Authorization with Line Items
  - REST Example: Processing an Authorization with Line Items
- Authorizations with Payment Network Tokens
  - Required Fields for Authorizations with Payment Network Tokens
  - Optional Fields for Authorizations with Payment Network Tokens
  - REST Example: Authorizations with Payment Network Tokens
- Authorizations with a Card Verification Number
  - Required Fields for Processing an Authorization with a Card Verification Number
  - Optional Fields for Processing an Authorization with a Card Verification Number
  - REST Example: Processing an Authorization with a Card Verification Number
- Marketplace Authorizations with Foreign Retailers
  - Required Fields for Processing a Marketplace Authorization with a Foreign Retailer
  - REST Example: Processing an Marketplace Authorization with a Foreign Retailer
- Authorizations with Strong Customer Authentication Exemption
  - Required Fields for Processing an Authorization with an SCA Exemption
  - REST Example: Processing an Authorization with an SCA Exemption for Low-Value Transactions
- Zero Amount Authorizations
  - Required Fields for Processing a Zero Amount Authorization
  - REST Example: Processing a Zero Amount Authorization
- Pre-Authorizations
  - Required Fields for a Pre-Authorization
  - REST Example: Processing a Pre-Authorization
- Final Authorization Indicator
  - Requirements for Final Authorizations
  - Pre-Authorizations
  - Unmarked Authorizations
    - Requirements for Unmarked Authorizations
  - Undefined Authorizations
    - Requirements for Undefined Authorizations
  - Required Fields for Final Authorizations
  - REST Example: Final Authorizations
- Authorization Reversal
  - Required Fields for Processing an Authorization Reversal
  - REST Example: Processing an Authorization Reversal
- Sales
  - Required Fields for Processing a Sale
  - REST Example: Processing a Sale
- Sales with Payment Network Tokens
  - Required Fields for Sales with Payment Network Tokens
  - Optional Fields for Sales with Payment Network Tokens
  - REST Example: Sales with Payment Network Tokens
- Captures
  - Required Fields for Capturing an Authorization
  - REST Example: Capturing an Authorization
- Marketplace Captures with Foreign Retailers
  - Required Fields for Capturing an Authorization with a Foreign Retailer
  - REST Example: Capturing a Marketplace Authorization with a Foreign Retailer
- Multiple Partial Captures
  - Required Fields for Processing Multiple Partial Captures
  - REST Example: Processing Multiple Partial Captures
- Refunds
  - Required Fields for Processing a Refund
  - REST Interactive Example: Processing a Refund
  - REST Example: Processing a Refund
- Credits
  - Required Fields for Processing a Credit
  - REST Interactive Example: Processing a Credit
  - REST Example: Processing a Credit
- Voids for a Capture or Credit
  - Required Fields for Voiding a Capture or Credit
  - REST Example: Voiding a Capture or Credit

Debit and Prepaid Card Processing
- Processing Debit and Prepaid Authorizations
  - Required Fields for Processing Debit and Prepaid Authorizations
  - Optional Field for Processing Debit and Prepaid Authorizations
  - REST Example: Processing Debit and Prepaid Authorizations

Mastercard Processing
- Mastercard Payment of Winnings Processing
  - Required Fields for Processing a Mastercard Payment of Winnings
  - Optional Fields for Processing a Mastercard Payment of Winnings
  - REST Example: Processing a Mastercard Payment of Winnings

Payer Authentication Processing
- Providing Payer Authentication Information for Authorization
- Discover/Diners ProtectBuy
  - Required Fields for Processing an Authorization Using Discover ProtectBuy Authentication
  - REST Example: Processing an Authorization Using Discover ProtectBuy Authentication
- Mastercard Identity Check
  - Required Fields for Processing an Authorization Using Mastercard Identity Check
  - REST Example: Processing an Authorization Using Mastercard Identity Check
- Visa Secure
  - Required Fields for Processing an Authorization Using Visa Secure
  - REST Example: Validating and Authorizing a Transaction

Relaxed Requirements for Address Data and Expiration Date in Payment Transactions
- Requirements
- Services
- Relaxed Fields

Processing Payments Using Credentials
- Customer-Initiated Transactions with Credentials on File
  - Storing Customer Credentials with a CIT and PAN
    - Required Fields for Storing Customer Credentials During a CIT
    - REST Example: Storing Customer Credentials During a CIT
  - Storing Customer Credentials with a CIT and TMS
    - Required Fields for Storing Customer Credentials with a CIT and TMS
    - REST Example: Storing Customer Credentials with a CIT and TMS
  - Retrieving Stored Customer Credentials During a CIT
    - Required Fields for Retrieving Customer Credentials During a Customer-Initiated Transaction
      - Card-Specific Required Field for Retrieving Customer Credentials During a CIT
    - REST Example: Retrieving Customer Credentials During a CIT
- Delayed Transaction
  - Merchant-Initiated Delayed Transaction with PAN
    - Required Fields for Processing a Merchant-Initiated Delayed Transaction
      - Card-Specific Required Field for Processing a Merchant-Initiated Transactions
    - REST Example: Processing a Merchant-Initiated Delayed Authorization Transaction
  - Merchant-Initiated Delayed Transaction with TMS
    - Required Fields for MIT Delayed Transaction with TMS
    - Example: MIT Delayed Transaction with TMS Instrument Identifier
    - Example: MIT Delayed Transaction with TMS Payment Instrument
    - Example: MIT Delayed Transaction with TMS Customer token
- Incremental Transaction
  - Merchant-Initiated Incremental Transaction with PAN
    - Required Fields for Processing Merchant-Initiated Incremental Transactions
      - Card-Specific Required Field for Processing a Merchant-Initiated Transactions
    - REST Example: Processing Merchant-Initiated Incremental Transactions
  - Merchant-Initiated Incremental Transaction with TMS
    - Required Fields for MIT Incremental Transaction with TMS
    - Example: MIT Incremental Transaction with a TMS Instrument Identifier
    - Example: MIT Incremental Transaction with a TMS Payment Instrument
    - Example: MIT Incremental Transaction with a TMS Customer token
- No-Show Transactions
  - Merchant-Initiated No-Show Transactions with PAN
    - Required Fields for Processing Merchant-Initiated No-Show Charges
      - Card-Specific Required Field for Processing a Merchant-Initiated Transactions
    - Optional Field for Processing Merchant-Initiated No-Show Charges
    - REST Example: Processing Merchant-Initiated No-Show Transactions
  - Merchant-Initiated No-Show Transaction with TMS
    - Required Fields for MIT No-Show Transaction with TMS
    - Example: MIT No-Show Transaction with a TMS Instrument Identifier
    - Example: MIT No-Show Transaction with a TMS Payment Instrument
    - Example: MIT No-Show Transaction with a TMS Customer
- Reauthorization Transaction
  - Merchant-Initiated Reauthorization Transactions with PAN
    - Required Fields for Processing Merchant-Initiated Reauthorized Transactions
      - Card-Specific Required Field for Processing a Merchant-Initiated Transactions
    - REST Example: Processing a Merchant-Initiated Reauthorized Transaction
  - Merchant-Initiated Reauthorization Transactions with TMS
    - Required Fields for MIT Reauthorization Transaction with TMS
    - Example: MIT Reauthorization Transaction with a TMS Instrument Identifier
    - Example: MIT Reauthorization Transaction with a TMS Payment Instrument
    - Example: MIT Reauthorization Transaction with a TMS Customer
- Resubmission Transaction
  - Merchant-Initiated Resubmission Transaction with PAN
    - Required Fields for Processing a Merchant-Initiated Resubmitted Transaction
      - Card-Specific Required Field for Processing a Merchant-Initiated Transactions
    - REST Example: Processing a Merchant-Initiated Resubmitted Transaction
  - Merchant-Initiated Resubmission Transaction with TMS
    - Required Fields for MIT Resubmission Transaction with TMS
    - Example: MIT Resubmission Transaction with a TMS Instrument Identifier
    - Example: MIT Resubmission Transaction with a TMS Payment Instrument
    - Example: MIT Reauthorization Transaction with a TMS Customer
- Recurring Payments
  - Customer-Initiated Recurring Payment with PAN
    - Required Fields for Authorizing a Customer-Initiated Recurring Payment with PAN
    - REST Example: Authorizing a Customer-Initiated Recurring Payment with a PAN
  - Customer-Initiated Recurring Payment with TMS
    - Required Fields for Authorizing a Customer-Initiated Recurring Payment with TMS
    - REST Example: Authorizing a Customer-Initiated Recurring Payment with TMS
  - Customer-Initiated Recurring Payment with Enrollable Network Tokens
    - Required Fields for Authorizing a Customer-Initiated Recurring Payments with Enrollable Network Tokens
    - REST Example: Authorizing a Customer-Initiated Recurring Payment with Enrollable Network Tokens
  - Merchant-Initiated Recurring Payments with PAN
    - Required Fields for Authorizing a Merchant-Initiated Recurring Payment
      - Card-Specific Required Fields for Authorizing Subsequent Recurring Payments
    - REST Example: Authorizing a Merchant-Initiated Recurring Payment
  - Merchant-Initiated Recurring Payments with TMS
    - Required Fields for Authorizing a Merchant-Initiated Recurring Payments with TMS
    - REST Example: Authorizing a Merchant-Initiated Recurring Payment with a TMS Instrument Identifier
    - REST Example: Authorizing a Merchant-Initiated Recurring Payment with TMS Payment Instrument
    - REST Example: Authorizing a Merchant-Initiated Recurring Payment with a TMS Customer Token
- Mastercard Standing Order Payments
  - Mastercard Initial CIT Standing Order Payment
    - Required Fields for Authorizing Initial CIT Standing Order Payments
    - REST Example: Authorizing Initial CIT Standing Order Payments
  - Mastercard Initial CIT Standing Order Payment with TMS
    - Required Fields for Authorizing Initial CIT Standing Order Payments with TMS
    - REST Example: Authorizing Initial CIT Standing Order Payments with TMS
- Mastercard Subscription Payments
  - Mastercard CIT Initial Subscription Payment
    - Required Fields for Authorizing CIT Initial Subscription Payments
    - REST Example: Authorizing Initial CIT Subscription Payments
  - Mastercard CIT Initial Subscription Payment with TMS
    - Required Fields for Authorizing CIT Initial Subscription Payments with TMS
    - REST Example: Authorizing Initial CIT Subscription Payments with TMS
- Unscheduled COF Payments
  - Customer-Initiated Unscheduled COF Payment with PAN
    - Required Fields for a Customer-Initiated Unscheduled COF Payment with PAN
    - REST Example: Customer-Initiated Unscheduled COF Payment with PAN
  - Customer-Initiated Unscheduled COF Payments with TMS
    - Required Fields for CIT Unscheduled COF Payments with TMS
    - REST Example: Initial CIT Unscheduled COF Payment in TMS
  - Customer-Initiated Unscheduled COF Payment with Enrollable Network Tokens
    - Required Fields for CIT Unscheduled COF Payment with Enrollable Network Tokens
    - REST API Example: CIT Unscheduled COF Payment with Enrollable Network Tokens
  - Merchant-Initiated Unscheduled COF Payments with PAN
    - Required Fields for Authorizing Subsequent MIT Unscheduled COF Payments
      - Card-Specific Required Field for Processing a Merchant-Initiated Transactions
    - REST Example: Authorizing Subsequent MIT Unscheduled COF Payments
  - Merchant-Initiated Unscheduled COF Payments with TMS
    - Required Fields for MIT Unscheduled COF Payments with TMS
    - Example: MIT Unscheduled COF Payment with TMS Instrument Identifier
    - Example: MIT Unscheduled COF Payment with TMS Payment Instrument
    - Example: MIT Unscheduled COF Payment with TMS Customer

Token Management Service Processing
- Authorizing a Payment with a Customer Token
  - Required Fields for Authorizing a Payment with a Customer Token
  - REST Example: Authorizing a Payment with a Customer Token
  - REST Example: Authorizing a Payment Using a Customer Token Linked to a Network Token
- Authorizing a Payment with a Non-Default Shipping Address
  - Required Fields for Authorizing a Payment with a Non-Default Shipping Address
  - REST Example: Authorizing a Payment with a Non-Default Shipping Address
- Authorizing a Payment with a Non-Default Payment Instrument
  - Required Fields for Authorizing a Payment with a Non-Default Payment Instrument
  - Optional Fields for Authorizing a Payment with a Non-Default Payment Instrument
  - REST Example: Authorizing a Payment with a Non-Default Payment Instrument
- Authorizing a Payment with a Payment Instrument
  - Required Fields for Authorizing a Payment with a Payment Instrument
  - Optional Fields for Authorizing a Payment with a Payment Instrument
  - REST Example: Authorizing a Payment with a Payment Instrument
- Authorize a Payment with an Instrument Identifier
  - Required Fields for Authorizing a Payment with an Instrument Identifier
  - REST Example: Authorizing a Payment with an Instrument Identifier
  - REST Example: Authorizing a Payment with an Instrument Identifier While Creating TMS Tokens
- Authorize a Payment While Ignoring Network Token
  - Required Fields for Authorizing a Payment While Ignoring Network Token
  - REST Example: Authorizing a Payment While Ignoring Network Token
- Authorizing a Payment with a Legacy Token
  - Required Fields for Authorizing a Payment with a Legacy Token
  - REST Example: Authorizing a Payment with a Legacy Token
- Making a Credit with a Customer Token
  - Required Fields for Making a Credit with a Customer Token
  - REST Example: Making a Credit with a Customer Token
- Making a Credit with a Non-Default Payment Instrument
  - Required Fields for Making a Credit with a Non-Default Payment Instrument
  - Optional Fields for Making a Credit with a Non-Default Payment Instrument
  - REST Example: Making a Credit with a Non-Default Payment Instrument
- Making a Credit with a Payment Instrument
  - Required Fields for Making a Credit with a Payment Instrument
  - REST Example: Making a Credit with a Payment Instrument
- Making a Credit with an Instrument Identifier
  - Required Fields for Making a Credit with an Instrument Identifier
  - REST Example: Making a Credit with an Instrument Identifier
- Making a Credit with a Legacy Token
  - Required Fields for Making a Credit with a Legacy Token
  - REST Example: Making a Credit with a Legacy Token

On This Page

Credit Workflow

The credit workflow begins when you send a request for a credit.

A credit does not happen in real time. All of the credit requests for a day are typically placed in a file and sent to the processor as a single batch
transaction. In most cases, the batch transaction is settled overnight.

The merchant sends a request for a credit to Barclays.

For online credits, Barclays validates the order information then sends an online credit to the payment processor.

For offline credits, Barclays stores the credit request in a batch file and sends the batch file to the payment processor after midnight.

The processor validates the request and forwards it to the acquiring bank.

The acquiring bank transfers funds to the issuing bank.

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