The Website Visitors Retargeting Ad will retarget those who have visited your website, no matter which pages they have viewed, and encourage them to return to your website. You can also customize your targeting rules by including the visitors who have viewed or added items to the carts in a certain period of time or excluding the visitors who have purchased your products in recent days.
**If your website does not have a product page, in other words, all of your products are displayed on the homepage of your website, we’d suggest you run a Website Visitors Retargeting Ad instead of a Dynamic Product Ad.