If you are integrating with the Due API you can add an https webhook url to transactions so you can be notified about status updates to a specific transaction.
Request Method: POST
Sample Body: transaction_id=[transaction id here]
Once you get this request you can use the transaction id returned to make another api call for the updated status of that transaction. We do not include the updated status in the webhook request with the transaction id.
Please refer to our api docs for more info on retrieving transaction data: https://api-docs.due.com/
If you need assistance with your specific integration please submit a new support ticket.