Klevu's recommendation engine includes some impressive features. We will discuss how to configure and tune these for optimal performance.
To enable Product Recommendations, simply go into Magento and click: Stores > Configuration > Klevu > Search Configuration (switch to your store view) > Smart Recommendations. You may expect recommendations to "simply appear" on your website, but there is a little more configuration that is necessary.
Yes, definitely! However, these both do the same thing (in concept). I recommend you go with one or the other to ensure maximum frontend performance.