Fitment is Solved. The Next Million-Dollar Problem is Ranking.

You’ve already solved the hardest problem in auto e-commerce: fitment. But after a user finds the 75 parts that fit their car, showing them a list sorted by price or best-seller is a massive missed opportunity. This one-size-fits-all ranking frustrates users and leaves AOV on the table. This article explains why the next frontier for growth is in personalized ranking after fitment, and how you can use a simple API to power "complete the job" recommendations and 1:1 sorted search results, all without a massive engineering investment.