Withdrawal Callback

This callback API is used by the ATT Pay system to notify the merchant server of the final processing result of a cash-out (withdrawal) transaction. The merchant must verify the signature and return a valid status_code to acknowledge the callback.

1. Receiving Cash-Out Transaction Callback

Callback method: POST

Content-Type: application/json

Request Body Parameters:

Params	Type	Description	Example
withdraw_id	String	Platform trace ID	12345_67890
merchant_id	String	Platform merchant ID	att_merchant_4
trans_status	String	Transaction status - trans_status explanation	pending
amount	Number	Transaction amount (VND)	50000
signature	String	Signature logic	7779b0e5a82b61ac89f5c3f50ffbdc65

2. Callback Response

Please return a status_code according to the status code specification.
The payment system will use this response to determine the next processing step.

1. Receiving Cash-Out Transaction Callback#

Request Body Parameters:#

2. Callback Response#

1. Receiving Cash-Out Transaction Callback

Request Body Parameters:

2. Callback Response