A soft 404 happens when a page looks empty or useless but still returns a normal status code. This can confuse search engines. For out of stock products, do not leave the page blank. Add helpful content like similar products or updates on availability. You can also clearly say the product is not available. This keeps the page useful instead of dead. Redirecting can also help if the product is gone for good. What approach works better for handling unavailable products on your site?