@hasan, did you enter negative customer/supplier credits as starting balances? I’m sorry but I can’t support this. Even though the software allowed for this previously, the guides specifically stated that starting balances for accounts receivable and accounts payable must be entered as individual invoices dated before start date.
This is because most businesses need profit & loss statement or tax reports on cash-basis. If you take a shortcut by entering negative credit amount instead of entering that invoice, Manager has no way of determining what taxes have been applied on that starting balance, what income accounts should be affected etc. In other words, your cash-basis reports will be wrong. So I can’t support a workaround which will eventually hurt users.
Not to mention, if you enter these invoices individually, you can start issuing customers their statements right away. That’s one more benefit of not doing a workaround.
So what to do if you have a lot of unpaid invoices which should be entered to establish starting balance? You should always consider to enter them all. I will soon give ability to import invoices from spreadsheet too which could help somewhat. If you really really want to avoid entering all invoices, one acceptable workaround would be to enter one invoice per customer/supplier which should represent total of their unpaid invoices.