You can set and track inventory for your store, which will allow you to re-order products and show only products that are available to customers.
Click on the Store option in the left section, and select “Manage Store.”
Once you enter your store management panel, select the “Catalog” section and click “Products.”
Select the relevant product and set the product quantity under “Stock Control.” This will allow the system to track the quantity, showing as “Out of stock” once the quantity reaches zero and sending you a notification. You can also select “Unlimited” if you are selling digital products.
You can hide out of stock products by selecting “Settings,” “General” and clicking on the “Cart & Checkout” section. Select enable/disable and save.
Once the stock of a product reaches zero you will receive a notification, but you can also set a notification for when stock gets low. Select “Settings,” “Mail.”
Scroll down to the Admin Notifications section. You can enable/disable and edit the email here.