Upon generation of Balance Sheet report, user found out that there is a creditor/debtor account that is under a wrong GL Account code.
To transfer it to the correct GL Account code, go to Customers/Supplier maintenance and look for that specific Customer/Supplier. Check the Control Account.
Once verified that it is under a wrong Control Account, update it to the correct one.
Go back to Balance Sheet Report. Debtor/Creditor must now be under the correct GL Account code.