YITH WooCommerce Waiting List helps you keep sales opportunities alive by letting customers subscribe to restock alerts for out-of-stock products. When an item runs out, a simple form appears, inviting users to join the waiting list with their email. Once the item is back in stock, the plugin automatically sends an email to everyone on the list, letting them know they can buy it. You can view and manage all waiting lists from your dashboard, see how many users are interested in specific products, and decide whether to restock based on real demand.