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Merchant-Initiated Installment Payments with PAN

After the initial CIT installment payment, subsequent installment payments are merchant-initiated transactions (MITs).

Prerequisites

The first transaction in an installment payment is a customer-initiated transaction
(CIT). Before you can perform a subsequent merchant-initiated transaction
(MIT), you must store the customer's credentials for later use. Before you can store the user's credentials, you must get the customer's consent to store their private information. This process is also known as establishing a relationship with the customer.

Installment Payment Types

VDC National Australia Bank Ltd enables you to process installment payments but does not have a role in setting the terms for the installment plan.

VDC National Australia Bank Ltd enables you to process these types of installments payments:

Issuer-Funded Installment Payments: The customer pays for goods or services using an installment plan agreed upon by the customer and their issuing bank. The issuer controls how the customer's account is debited. Your account is credited for the entire amount in a single transaction. The issuer assumes the risk and establishes credit rates and fees that are charged to the customer. The customer pays the funding cost, which is a fee for paying in installments.
Merchant-Funded Installment Payments: The customer pays for goods or services using an installment plan agreed upon by you and the customer. The issuer controls how the customer's account is debited. Your account is credited periodically for partial amounts as the customer's account is debited. You assume the risk and establish the credit rate and fees that are charged to the customer.

Supported Card Types

These are the supported card types for processing credentialed transactions:

American Express

Carta Si

Cartes Bancaires

Dankort

Delta

Eurocard

JCB

Maestro (UK Domestic)

Mastercard

Visa

Visa Electron

Endpoint

Production:

POST https://nabgateway-api.nab.com.au/pts/v2/payments

Test:

POST https://nabgateway-api-test.nab.com.au/pts/v2/payments

Required Fields for a Merchant-Initiated Subsequent Installment Payment

orderInformation.amountDetails.currency
orderInformation.amountDetails.totalAmount
orderInformation.billTo.address1
orderInformation.billTo.administrativeArea
orderInformation.billTo.country
orderInformation.billTo.email
orderInformation.billTo.firstName
orderInformation.billTo.lastName
orderInformation.billTo.locality
orderInformation.billTo.phoneNumber
orderInformation.billTo.postalCode
paymentInformation.card.expirationMonth
paymentInformation.card.expirationYear
paymentInformation.card.number
processingInformation.authorizationOptions. initiator. merchantInitiatedTransaction. previousTransactionID: American Express: set to the transaction ID from the original transaction.
Discover: set to the transaction ID from the original transaction.
Visa: set to the last successful transaction ID.
processingInformation. authorizationOptions. initiator. storedCredentialUsed: Set the value to
true
.
processingInformation. authorizationOptions. initiator. type: Set the value to
merchant
.
processingInformation. commerceIndicator: Set the value to
install
.

REST Example: Authorizing Merchant-Initiated Subsequent Installment Payments

Request

{
    "processingInformation": {
        "commerceIndicator": "install",
        "authorizationOptions": {
            "initiator": {
                "storedCredentialUsed": "true",
                "type": "merchant",
                "merchantInitiatedTransaction": {
                    "reason": "9",
                    "previousTransactionId": "123456789619999",
                    "originalAuthorizedAmount": "100"    //Discover Only
                }
            }
        }
    },
    "orderInformation": {
        "billTo": {
            "firstName": "John",
            "lastName": "Doe",
            "address1": "201 S. Division St.",
            "postalCode": "48104-2201",
            "locality": "Ann Arbor",
            "administrativeArea": "MI",
            "country": "US",
            "phoneNumber": "5554327113",
            "email": "[email protected]"
        },
        "amountDetails": {
            "totalAmount": "100.00",
            "currency": "ABC"
        }
    },
    "paymentInformation": {
        "card": {
            "expirationYear": "2031",
            "number": "4111xxxxxxxxxxxx",
            "expirationMonth": "12"
        }
    }
}

Response to a Successful Request

{
    "_links": {
        "authReversal": {
            "method": "POST",
            "href": "/pts/v2/payments/6530824710046809304002/reversals"
        },
        "self": {
            "method": "GET",
            "href": "/pts/v2/payments/6530824710046809304002"
        },
        "capture": {
            "method": "POST",
            "href": "/pts/v2/payments/6530824710046809304002/captures"
        }
    },
    "clientReferenceInformation": {
        "code": "1653082470983"
    },
    "id": "6530824710046809304002",
    "orderInformation": {
        "amountDetails": {
            "authorizedAmount": "100.00",
            "currency": "ABC"
        }
    },
    "paymentAccountInformation": {
        "card": {
            "type": "002"
        }
    },
    "paymentInformation": {
        "tokenizedCard": {
            "type": "002"
        },
        "card": {
            "type": "002"
        }
    },
    "pointOfSaleInformation": {
        "terminalId": "111111"
    },
    "processorInformation": {
        "approvalCode": "888888",
        "authIndicator": "1",
        "networkTransactionId": "123456789619999",
        "transactionId": "123456789619999",
        "responseCode": "100",
        "avs": {
            "code": "X",
            "codeRaw": "I1"
        }
    },
    "reconciliationId": "79710341A39WTT5W",
    "status": "AUTHORIZED",
    "submitTimeUtc": "2022-05-20T21:34:31Z"
}