Understanding Monetary Accounts
For most general ledger accounts, you want the system to accept transactions in any currency. This is accomplished by not assigning a currency code to the account.
For those accounts in which you want to accept only transactions in a specific currency, you must assign a currency code to the account. These accounts are called monetary accounts. Monetary accounts are usually bank, or cash, accounts
For example, a Japanese organization has a company with a currency that is Japanese yen, and that company has a bank account that is Canadian dollars (CAD). If you assign CAD as the currency of that account, it becomes a monetary account and the system accepts only transactions in that currency.
The system stores currency codes for monetary accounts in the Account Master table (F0901).
Do not change an account from monetary to non-monetary, or vice versa, if any activity has been posted to the account. Changing the currency affects the integrity of the data.