To add the change due amount to the Order Created and Order Updated messages:
1.Open the Registry from the Desktop.
2.Navigate to the Registry::EN::Business Objects::TSorderBO node.
3.Edit statements in the 'insert message' and 'processPayment' fields to something similar to Change due = $%n (Order created Change due = $%n).
The %n inserts the calculated change due amount in the pop-up message.