Back in Stock Alerts is a powerful tool for merchants to prevent lost sales and bring shoppers back. The app checks product availability every two hours and sends automated email notifications when the product is back in stock. Customers can easily sign up for notifications by submitting their data in a pop-up window. Merchants can also use an ‘In Stock Reminder’ badge and a ‘Notify Me’ pop-up to further encourage customers to sign up for notifications. The pop-up appears when a user clicks on the icon badge or when a user is viewing an out-of-stock product.