E-Business Suite allows users to transact in any currency as long as an exchange rate exists between the transacted currency and the ledger currency.
The ledger currency represents the currency that Oracle General Ledger will maintain balances for your ledger. (This is also referred to as the functional or recording currency.)
When a transaction is entered in the ledger currency and the journal is posted, a balance is maintained for the accounts affected in the ledger currency. When a transaction is entered in a currency other than the ledger currency, the transaction is converted to the ledger currency based upon specific exchange rates available and stored in the ledger currency.
Exchange rates can be maintained for each currency rate type, which are user-definable. There are three seeded rate types that exist in the system: