Odoo 17 Enterprise line item is customized whenever I create a bill in the currency (USD) which is other than my system currency (SAR). 

The move (Draft Bill (* 367) (82)) is not balanced.

The total of debits equals 90,225.00 SR and the total of credits equals 24,060.00 SR.

You might want to specify a default account on journal "xyz" to automatically balance each move.

I wanted to know where I have to check in the code. if this is in account.move.line.