How Best-converting ranking works

Best converting ranks by conversion rate — purchases ÷ impressions. It rewards products that close rather than products that get looked at, so a niche item bought by nearly everyone who sees it can out-rank a crowd favorite. Any product whose conversion rate works out to zero is dropped — that includes a heavily-viewed product nobody has bought.

1. The collection, unranked

A normal collection page. The order is whatever the catalog lists — the best performers could be buried on the second row where few shoppers scroll.

2. The ranking engine scores it

The engine divides each product’s purchases by its impressions over the window — a raw rate with no smoothing, so a product seen 40 times and bought 4 beats one seen 4,000 times and bought 200. “Purchases” counts checkouts containing the product rather than units. Engagement signals measure in whole days, so an hours-based window counts as one day, and a Period or Snapshot window falls back to the last 30 days.

3. The front row gets discovered

The strongest products now fill the front row — the slots that get the most views and clicks. That’s the payoff: ranking turns your best products into the ones shoppers see first. If fewer products have converted than your Max products cap allows, the leftover slots are filled from the collection’s current order, below every product with a real conversion rate.