This application is doing an amazing job of monitoring cash flow but does it have a utility where stock can be monitored as well? So you can not only keep track of orders and sales but also stock levels?
QuickFile has a basic inventory system but stops short of full Stock Control.
http://help.quickfile.co.uk/main/1/setting_up_reusable_inventory_items.htm
Stock Control is a whole domain in itself, there’s a number of discussion on the forum if you put a search in for “Stock Control”.