For consistency reasons, every transaction within Manager will have reference number.
Transactions which are originated by the business (cash transactions, sales quotes, sales invoices, credit notes, purchase orders, payslips etc.) will have automatically generated reference number.
Transactions which are originated by external party (bank transactions, purchase invoices, debit notes, sales orders etc.) will not have automatically generated reference number as it’s expected this to be entered manually as per generated reference from external party.