Back In Stock Notifier is a WooCommerce Waitlist Pro plugin that displays the email subscription form when a product is out of stock. Those interested in purchasing the product will subscribe to email notifications. When the Product is back in stock, the Back In Stock Notifier will notify Subscribers by email by converting all those Subscribers into potential Customers. By using Back In Stock Notifier you will never lose a sale, even if your product is out of stock. Back In Stock Notifier captures all those missed sales.