You can opt in to receive a message when your stock reaches a certain limit. You may want to have this feature if you need time to order or produce the items.
To set up the "Low Stock" email notification, navigate to the E-Commerce tile > Catalog > Products > Specific Product > Manage link
Select the E-Commerce tile.
Select Catalog > Products and select the product you would like to update.
Select Manage and set the quantity.
Scroll down to the Admin Notification section to edit the template and/or to disable the notification.