Inventory Age Report
I use the BI4 Item Sales v All Inventory report which includes the "Last Weeks Sold" feature when reordering. It's very helpful.
To really get a handle on our inventory efficiency we are looking for a report that gives us "Last Purchase Date", "Last Purchase Quantity", "Current on Hand"
This would show us, for example, that we bought 100 pieces a month ago and have 10 left. Is a report like this possible?