If this module has been subscribed to, when your customers select an unavailable size, a notification with the text “notify me when it is available” will appear.
Your customer will be able to click on the notification and a subscription form will pop up to receive an email automatically when the product is back on stock.
The system cyclically checks the existence of stock for that product, product option or option combination. If the system detects that new stock has been entered, it sends an email to the subscribed user. This email is a template that can be edited from the LogiCommerce email templates section, so you can customize the message that the subscriber will receive.