The Real Time Inventory functionality is a great tool for businesses who want to show customers how much inventory of all or certain products are currently in stock. This comes in handy for stores that sell products that sell quickly or for items that are difficult to come by. For example, a firearms dealer might purchase an amount of firearms for one price and when all of the firearms are sold then the price will most likely change. Or if a store is selling products and not buying more, then it might want to let customers know this is it.