When you have posted an invoice in multiple currencies, you can see the customer’s status for each currency for which there are transactions.
Open the Customer Card window.
Browse to the customer you want to see the status for.
From the customer card, click Customer, Statistics by Currencies. The Customer Stats. by Currencies window appears. Each line shows the transaction statistics for the customer in the currency on the line.
Click the AssistButton in the Balance field on a specific line to see the currency amounts that make up the balance on the line.
Sales Invoicing with Multiple Currencies