On the debtor sheet, you have the possibility to block the debtor, by clicking on the 'Block customer' button.
When clicking the button, the debtor is blocked within iController and is visualized as such on the debtor sheet.
You can follow up all blocked debtors in the workspace, in the trackinglist 'Blocked debtors'.
If you want the button to be more than just a visualization of a blocked debtor, e.g. you want to receive a notification in your accounting software when a debtor is blocked, or you want to automatically block debtors based on a specific set of conditions, please contact our support team.