Choose an ecommerce SEO service based on your business goals, not a generic...

https://www.cast-bookmarks.win/choosing-ecommerce-seo-services-starts-with-your-business-goals-not-a-generic-1

Choose an ecommerce SEO service based on your business goals, not a generic package. Ask how they handle faceted navigation and stockouts, what their reports measure, and whether any guarantees are realistic and clearly defined.