Suppose My Base currency is USD and I have a customer invoice = 1000 EUR, I created this invoice at 01/01/2015  when the currency rate was: 1EUR=2USD. In customer, I see the receivable: 2.000 USD. Now, at 10/30/2015, rate is: 1 EUR =5USD. Customer paid me 500 EUR. Invoice balance stays: 500 EUR, but the PROBLEM IS: In customer object, I see the receivable in a minus sign: -500. Since System regarded 500 EUR=2500 USD, and system tells me in chart of account, and in Customer receivable field that I have minus 500 receivable which means I have to pay the customer:) I believe this is a bug, since system should have decreased receivable by OLD rate, and the difference should have gone to exchange rate gain account which means that I should have receivable: 1000 USD, and gain from rate increase should be 1500 USD.

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