Apply Payment,affect Profit/Loss of last yr.

When a Payment of current Fiscal year, is applied to a closed Phiscal years open invoice; The Profit and Loss goes to last years Profit and Loss account. Is this a Bug ? How can I correct this ? Using Navision 3.6W1

What P/L component do you mean? Is this a currency gain los issue? I always thought that payments hit the Balance Sheet.

Yes it is a Currency Gains and Losses