Best Sellers: Popular by Purchases

Amazon Personalize Recipe: Popular-by-Purchases

Recommends best selling products based on how many times customers have purchased an item. The best selling items have the most "Purchase" interactions with unique users. The recipe returns the same best selling items for all users. Therefore, recommendations are not personalized to the individual user and are useful when you want a system-wide representation of what's selling across the site.

You may notice some items are annotated with a "Promoted" banner across the top of the product image. This banner indicates products that match a promotional filter that is optionally applied when retrieving recommendations. Promotional filters are a great way to ensure that a user-defined percentage of recommended items match a specific filter expression but are also relevant to the user. This can be used to highlight products on sale or new products recently added to the catalog.