Welcome dbvb!
It's a pleasure to see you in Community. I can understand how beneficial having the ability to record customer prepayments in foreign currencies would be. If you would like this to become available in future updates, please submit a suggestion to the QuickBooks Development Team. In the interim, you can set up and manage up front deposits, as noted here.
Feel free to reach back out if you have any other questions. We would be glad to help!
