Consumed Items can be tracked by Inventory and will need to be tied to the fees in your fee schedule.
Navigate to your Fee Schedule and select a fee that will consume an item that is in your Inventory. Select the Consumed Items tab and click the green plus. Select the item from the following screen. Confirm that the association drop down is set to Sold. Adjust the Quantity if needed. Complete this procedure on all fees that consume items from your Inventory.