Checking G/L Account Balances 
From the SAP Business One Main Menu, choose .
Choose an account and click the arrow next to Balance.
The Account Balance – <account title> window appears.
To display business partner codes in the account balance, choose
(Form Settings) and select the Visible option for the BP/Account
Code column.
Note
You can also check the account balance of an individual business partner from the Business Partner Master Data window.