Use this procedure to define foreign currency exchange rates manually.
Note: You must have defined all the foreign currencies for which you need to define exchange rates (Administration > Setup > Financials Currencies).
1) From the SAP Business One Main Menu, choose: Administration > Exchange Rates and Indexes > Exchange Rates.
2) In the window header, select the relevant month and year. The default is the current date.
3) In the required intersecting date line/currency matrix cell, specify the exchange rate.
Note: The value of the exchange rate entered depends on the Exchange Rate Posting method selected on the General Settings: Display Tab.
4) After entering all necessary exchange rates, choose Update to save the data.