A callback is a notification that we send to your server to notify you whether the disbursement has been successful or failed. You should always set up your payout callback URL to use Payouts. Upon execution of the payout, we send you a callback with the updated status. If the payout was successfully executed, we send you a callback notifying you that the payout was completed. If the payout was not successfully executed, we send you a callback notifying you that payout has failed along with the appropriate failure code, to facilitate your decision on whether to send us another request to create payout or return the failure result to your customer.

To set this up, you can set up the callback URL in your dashboard settings. Nominate a callback URL for product DISBURSEMENT:

• Disbursement sent
• Batch disbursement sent
• Payouts v2

You can find the detail information about disbursement callback here.