I would like to be able to delete some of the older, no longer in use, item codes from our inventory module. These are items that were valid at one point, but for various reasons, the most common being that our vendor no longer makes that particular product, are not needed anymore.
However, there is history on these items, and at one time, it was felt better that they were not deleted, otherwise, errors would occur, of course because the item is on an invoice, even if the invoice is now in history.
What is the best way to approach items no longer in use?