It has been years since this post; has the development team not implemented this?  This is a basic function of many off the shelf ERP's and really needs to be addressed ASAP!  Because of the lack of being able to post an invoice date correctly in QB then our days to pay is useless and the processors are constantly having to manually calculate the due date.  On another note because of the lack of accounting period being separate from date of invoice or check it causes issues when voiding checks written in previous 'periods' and now leaves the vendor ledger with what appears to be duplicate invoices.  This seems as though it would be an easy fix to make the accounting period rely on the transaction date and NOT the date of the check and/or invoice!  Come on it's 2023 can we please get this?