Waiting List Prestashop Module by FMM allows your customers to subscribe to your out of stock products in advance. Customers can subscribe to the out of stock products and once that particular product is back in the stock they will get a stock availability notification via their requested email. This is a powerful module from FMM which helps you in achieving your business goals.
Using this Waiting List Prestashop Module, the store owners can know about the exact demand for the products. Furthermore, the store owners can also analyze how many products they have to order from the product supplier (s).