Hi Jing,

If you have set up a GL account to be MultiCurrency and post to Specified Currencies, then in order to post a Euro currency to this account, Euro must be added to the list of Specified currencies. In your origianl question, you said you set DOS as the default account. Is 'DOS' Euros? If not, the you need to add Euros to this list within editing the GL account.

If you have the MultiCurrency program installed, this removes the File / Currency Codes function. Instead of editing currency codes from Ledger or other programs, all Currency maintenance is done from the MultiCurrency program.