Mconnect Out of Stock Notification Extension for Magento 2 is useful when admin of the store has to notify their customers about out of stock products and when they will be back in stock via an email notification. The extension helps acknowledge customers when there is any movement for out of stock products. This makes it easy for customers to track the product they are looking to buy. Whenever any product goes out of stock, the extension will notify it on the product page and provides a facility to customers to subscribe for more updates. And when the product comes back in stock, it will send out a notification to all the subscribed customers. Also, the extension has feature that informs the admin of the store about out of stock products via an email notification.