Error 80309 Fixed Currency account uses another currency

When:

During GL Voucher Posting

Reason:

When a GL Voucher Transaction that the account booked to the currency other than the denominated currency (if defined). This error will occurs

e.g.

Solution:

Amend the Currency Code in the Voucher Line or remove the Currency Code from the Chart of Account.

Reason:

When a Currency Code is defined in Chart of Account, it is treated as denominated currency account and only that currency can book to that account.