Forum Post: Foreign customer's balance

We have several foreign customers and currency is Canadian Dollar. They paid the invoice amount and the balance should be 0. But after cash receipts entry and processing, the system automatically generate one transaction :  Trans Type is "Payment", Trans Amount is "0.01". Then the balance changed to 0.01. We tried several ways to clean the balance , such as create a credit memo invoice, amount is set to 0.01 (credit memo), so the balance should be 0. But it's odd the balance change to 0.02 not 0. Is there any way to solve the issue? Thanks