In Magento 2, you can set up an out-of-stock notification to notify customers when a product that they are interested in is back in stock. This can help to improve customer experience and increase sales. Here is a tutorial on how to set up the out-of-stock notification in Magento 2:
Step 1: Log in to your Magento 2 Admin Panel and go to Stores > Configuration.
Step 2: Under Catalog, select Catalog.
Step 3: Scroll down to Product Alerts and click on it.
Step 4: You will see a number of options related to product alerts, including the ability to enable or disable alerts for out-of-stock products.
Step 5: Enable the out-of-stock notification by setting the Enable Stock Alert option to Yes.
Step 6: You can also customize the message that is sent to customers when a product is back in stock by entering text in the Notify Stock Alert Message field.
Step 7: Save your changes.
Once the out-of-stock notification is set up, customers will be able to sign up for alerts when a product is back in stock. They will receive an email notification when the product becomes available again.
By enabling the out-of-stock notification, you can improve customer experience and increase sales by making it easy for customers to find and purchase the products they want, even when they are temporarily out of stock.