In the ecommerce sector, Stock-out or Out-Of-Stock is defined as the shortest horror story for both a customer and a merchant. For a customer because his/her desired item is unavailable. For a merchant because he can lose that customer to his competitors.
We’ve all found products we loved but then found them out of stock. But, we don’t go back to the store again to keep checking if it’s back. Then why expect your shoppers to do it?
Insert a button on your out-of-stock products for customers to sign up to be notified the minute the product they want is restocked.