Once an item is purchased, it is considered to be "owned".
Some application stores require you to "consume" a purchase before you can purchase the item again. This is useful when you are providing items that may be purchased multiple times within your application, for example, health points or coins in a game.
Consuming an item involves calling the
consumePurchase function with a product request
containing the product id to consume.
If you consider a product to be a consumable you should implement this process either when your user uses the product or you can call it as soon as you deliver the product to the user.
Note: You must have completed the purchase by calling
finishPurchase()before attempting to consume a purchase.