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So there is no issue with this, the system is working as designed to. If you think it is not then we suggest speaking with your accountant about this and what it means. The information the previous agent has given you is correct and there is nothing going to change if you use cash or accrual as well.
The debtors and creditors amounts will post to the balance sheet, the income and expense amounts will post to the Profit and Loss, the opening balances for customers and suppliers usually post to both those places.