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Basic Processing
- Basic Authorizations
  - Required Fields for Processing Basic Authorizations Using the REST API
  - Declined Authorizations
  - REST Interactive Example: Processing an Authorization
  - REST Example: Processing a Basic Authorization
- Authorization Reversals
  - Required Fields for Processing Authorization Reversals Using REST APIs
  - Capturing an Authorization Using REST APIs
  - Example: Processing an Authorization Reversal Using the REST API
- Authorization with Line Itemization
  - Required Fields
  - REST Example: Processing a Basic Authorization with Line Items
- Zero Amount Authorizations
  - Required Fields for Processing Zero Amount Authorizations Using the REST API
  - Authorizing a Payment Using REST APIs
  - REST Example: Processing a Zero Amount Authorization
- Authorization with an SCA Exemption
  - Required Fields for Processing Basic Authorizations Using the REST API
  - REST Example: Authorization with an SCA Exemption for Low Value Transactions
- Captures
  - Required Fields for Processing Basic Captures Using the REST API
  - REST Interactive Example: Capturing a Payment
  - REST Example: Capturing an Authorization
- Sales
  - Required Fields for Processing Basic Sales Using REST APIs
  - REST Example: Requesting a Sale
- Refunds
  - Required Fields for Processing Refunds Using the REST API
  - REST Interactive Example: Processing a Refund
  - Example: Processing a Refund Using the REST API
- Stand Alone Credits
  - Required Fields for Processing RefundsFollow-On Credits Using REST APIs
  - REST Interactive Example: Processing a Credit
  - REST Example: Processing a Stand-Alone Credit
- Capture or Credit Voids
  - Required Fields for Processing Voids Using REST APIs
  - REST Example: Processing a Void

Card-Present Authorizations
- EMV Chip and Online PIN Authorization
  - Fallback
  - Required Fields for a Contact EMV Authorization with Online PIN Using the REST API
  - REST Example: EMV Chip and Online PIN Authorization
- EMV Chip (Contact) and Offline PIN Authorization
  - Fallback
  - Required Fields for a Contact EMV Authorization with Offline PIN Using the REST API
  - REST Example: EMV Chip (Contact) with an Offline PIN
- EMV Chip (Contact) and Signature
  - Fallback
  - Required Fields for a Contact EMV Authorization with a Signature Using the REST API
  - REST Example: EMV Chip (Contact) with a Signature
- EMV Chip (Contactless) and Online PIN
  - Fallback
  - Required Fields for an EMV Contactless Authorization with an Online PIN Using the REST API
  - REST Example: EMV Chip (Contactless) with an Online PIN
- EMV Chip (Contactless) and Offline PIN
  - Fallback
  - Required Fields for an EMV Contactless Authorization with an Offline PIN Using the REST API
  - REST Example: EMV Chip (Contactless) with an Offline PIN
- EMV Chip (Contactless with a Signature
  - EMV Fallback
  - Required Fields for an EMV Contactless Authorization with a Signature Using the REST API
  - REST Example: EMV Chip (Contactless) with a Signature

Payer Authentication Processing
- Visa Secure
  - Required Fields for an Authorization with Visa Secure Using REST APIs
  - Example: Authorization with Visa Secure Using the REST API
- Authorization with an SCA Exemption
  - Required Fields for Processing Basic Authorizations Using the REST API
  - REST Example: Authorization with an SCA Exemption for Low Value Transactions

Debit and Prepaid Card Processing
- Processing Debit and Prepaid Authorizations
  - Required Fields for Debit and Prepaid Authorizations Using REST APIs
    - payments-debit-prepaid-auth-required-country
  - Optional Field for Debit and Prepaid Authorizations Using REST APIs
  - REST Example: Debit and Prepaid Authorizations
- Enabling Debit and Prepaid Partial Authorizations
  - Required Field for Enabling Debit and Prepaid Partial Authorizations Using REST APIs
  - Optional Field for Enabling Debit and Prepaid Partial Authorizations Using REST APIs
  - Enabling Partial Authorizations
  - Example: Enabling Debit and Prepaid Partial Authorizations Using the REST API
- Disabling Debit and Prepaid Partial Authorizations
  - Required Field for Disabling Debit and Prepaid Partial Authorizations Using REST APIs
  - Optional Field for Disabling Debit and Prepaid Partial Authorizations Using REST APIs
  - Disabling Partial Authorizations
  - Example: Disabling Debit and Prepaid Partial Authorizations Using the REST API

On This Page

REST API | GPX

Single Message Processing

Single message processing, as the name implies, treats the authorization and capture as a single transaction. There are important differences for single message processing:

Single message processing treats the request as a full-financial transaction, and with a successful transaction, funds are immediately transferred from the customer account to the merchant account.

Authorization and capture amounts must be the same.

Some features cannot be used with single message processing.

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