First of all, you must keep in mind that to achieve inventory control. You must obtain reliable data about entries, departures, returns, exchanges and losses of the products that you sell. This activity can be done in a comfortable, agile and dependable way if you have a POS System with this scope. Additionally, we recommend you: http://troyulbsh.ivasdesign.com/10217878/4-tips-to-control-the-inventory-of-a-retail-business