You can easily manage the available number of items for any product. For example, let’s say you are setting up a class and you want to limit the number of available seats. Or, perhaps you are creating products for a pre-sale and you want to limit the quantity available for purchase. In the product edit screen, you would scroll down to the Inventory tab and click the checkbox for Manage Stock. You will then be allowed to set the available quantity for this product. (You can also set inventory quantities on any variations used in a variable product).