You can change the exchange rate on existing journal lines or sales and purchase documents (blanket orders, orders, invoices and credit memos) before posting. Before you can change exchange rates, you must set up currency codes and exchange rates.
Go to the document or journal you want to post and fill in the necessary fields.
Click the AssistButton in the Currency Code field on the relevant journal line or sales or purchase document.
Change the amount in the white field, which will be either the Exchange Rate Amount field or the Relational Exchange Rate Amount field. The way in which you can change the exchange rate for each currency is defined by the option you selected in the Fix Exchange Rate Amount field in the Currency Exchange Rate window. For Help about a specific field, click the field and click F1.
Click OK in the Change Exchange Rate window. The program will recalculate the exchange rate and the LCY amount for the specific sales or purchase document or journal line.
When you post, the amounts are converted to LCY according to the new exchange rate.
About Using Additional Currencies
Setting Up Additional Reporting Currencies