7. Callback Retry

If an issue occurs while processing the callback request sent within the scope of the bulk payment, you can use this service to receive the callback for the relevant bulk payment again

Callback Retry

POST {{Base Adres}}/api/paywall/payment/bulk/send/callback

Important: To use the callback retry service, you must include the apikeypublic and apiclientpublic parameters in the header.

PaymentAPI Address

This service can be used for transactions up to 7 days old. Callback retry is not supported for transactions older than 7 days.

The parameters to be sent to the service are as follows:

Parameter	Type	Compulsory	Description
apikeypublic	string	Yes	The Public Key obtained from the merchant panel.
apiclientpublic	string	Yes	The Public Client obtained from the merchant panel.

Sent Parameters:

Parameter	Type	Compulsory	Description
Date	DateTime	Yes	The date on which the relevant bulk payment was executed Format: yyyy-MM-dd
MerchantUniqueCode	string	Yes	The tracking number you provided during the bulk payment
CallbackBodyCompression	bool	No	If this parameter is sent as true, the callback will be compressed and delivered to the address specified in the CallbackAddress parameter.

Sample JSON and example codes to be sent to the service are as follows:

JSON

{
    "Date": "2025-03-26",
    "MerchantUniqueCode": "b33bad73-67df-4b5f-a068-36ba38cbd588",
    "CallbackBodyCompression": true
}

Parameters Returned from the Service

Parameter	Type	Description
ErrorCode	int	Error code. Returns '0' if the operation is successful.
Result	bool	Returns true if the operation is successful, and false if it fails.
Message	string	Contains information about the operation or an error message.

Sample JSON Response from the Service

Successful ✅

{
    "ErrorCodeType": 1,
    "ErrorMessage": null,
    "ErrorCode": 0,
    "Result": true,
    "Message": "",
    "Body": {
        "Message": "Bulk payment file callback has been scheduled",
        "BulkPaymentId": 4034
    }
}

Failed ❌