Notification Callback

For security reason, we highly recommend Merchant to ensure that the notifications received by Merchant backend, are actually sent by Finpay system. There are two ways to do those activity:

1. Validate the response by request checking transaction status to Finpay using Check Status Service. This flow is the most secure method to verify the authenticity of Callback. If transaction status match with Callback then Merchant can continue process the order
2. Validate the response using a comparison of the signature key receive from Finpay system when sending Callback with the signature generated by Merchant them self. If the siganture key does not match please ignore callback send by Finpay and you dont need to process the transaction.

Here are logic of the Signature Key to generate the Signature Key:

hash_hmac("sha512", json_encode($fields), $key);

Method	Merchant URL
POST	https://url.callback.merchant/

Data Request

No	Name	Type	Mandatory	Min Length	Max Length	Description
1	transactionDate	String	O	1	50	ISO 8601 format
2	transferDateTime	String	M	1	50	Actual transfer date time ISO 8601 format
3	originalReferenceNo	String	M	1	64	Original transaction identifier on service provider system
4	originalPartnerReferanceNo	String	O	1	64	Original Transaction identifier on service consumer system
5	beneficiaryBackCode	String	M	1	6	Original beneficiary bank code on service provider system
6	beneficiaryAccountName	String	M	1	64	Original beneficiary account name on service provider system
7	beneficiaryAccountNo	String	M	1	64	Original beneficiary account number on service provider system
8	amount	Object	O	1	2	Detail of amount
9	latestTransactionStatus	String	M	1	2	00 - Success 01 - Initiated 02 - Paying 03 - Pending 04 - Refunded 05 - Cancelled 06 - Failed 07 - Not found
10	triggerType	String	M	1	9	Type of Notification: - automatic (updated by system) - manual (triggered by merchant/operation)
11	additionalInfo	Object	O	1	18	Additional Info

Sample Request

{
  "transactionDate": "2025-06-25T16:43:41+07:00",
  "transferDateTime": "2025-06-25T16:43:44+07:00",
  "originalReferenceNo": "20250625164341499267",
  "originalPartnerReferenceNo": "f6c1bf23-8c86-4241-a445-591275d7efb0",
  "beneficiaryBankCode": "91122",
  "beneficiaryAccountName": "AHMAD ARIFAI",
  "beneficiaryAccountNo": "3205309801",
  "amount": {
    "currency": "IDR",
    "value": "3036663.00"
  },
  "latestTransactionStatus": "00",
  "triggerType": "automatic",
  "additionalInfo": {
    "notes": null
  }
}

Data Response

No	Name	Type	Mandatory	Min Length	Max Length	Description
1	responseCode	Enum	M	1	7	Response Code
2	responseMessage	String	M	1	500	Response Message
3	processingTime	Number	M	1	20	Processing Time

Sample Response

{
  "responseCode": "2000000",
  "responseMessage": "Success",
  "processingTime": 0.6609270572662354
}