When the Advanced Stocks Management option is enabled in PrestaShop backoffice, 3 new fields/columns are displayed in Store Commander's interface:
Physical Quantity: Physically available stock
Usable Quantity: Stock that is usable for sale
Real Quantity: Real stock is made of stock that is physically available in a warehouse, to which we add the quantity presently ordered from suppliers, and from which we subtract the quantity presently ordered by clients and which have not yet been shipped. For instance, at a given time, a product can be available as a physical stock, but not available for sale because some client orders are still waiting for shipping. That same product can also have a supply order in progress, and thus not yet accounted for in the physical stock.
Download our themed Guides to learn how to manage your shop at lightning speed with Store Commander.