Q.    Why is Purchase History Indicating no History Available if Parts on PO were Received? 

A.   If the PO has a status of "Cancel" this subsequently deletes all the purchase history related to this PO for all parts on this PO.  If you would like this PO displayed in the purchase history for the parts that had receipts you would need to edit and re-open the PO, apporve the PO, cancel the individual line items if there has NOT been any receipts against them, and re-approve the PO.  The PO status will then change to closed but the PO history for the received items will now appear in the Purchase History screen.  The information in the PO History button comes from the last 10 PO's including their CO (status 'closed', 'open', or cancelled' if received qty >0) and from the Original PO date.   NOTE:  The system will alow the user to Cancel the Entire PO even if the items within have had receipts, but will not let you cancel the individual line item if there has been any receipts against it.