To audit a product/sku (see a products history in and out by date) - I have to manually add the totals from all Purchase Orders- then manually count the SOLD invoices from Product Instances. The export to CVS feature should have a qty field so a auto-sum could quickly add them. Most desired is a Export to CVS or Report listing a product/sku Begining with On hand total then a list showing Dates Received and Sold together sorted by date- You can see the history of the product flowing in and out. Very helpful to us when looking for errors.