Choosing an ecommerce SEO service starts with your business goals, not a...

https://elliotsinsightfuljournals.evergrovio.com/posts/what-structured-data-should-an-ecommerce-seo-agency-implement

Choosing an ecommerce SEO service starts with your business goals, not a package. Ask how they handle faceted navigation, stockouts and product changes, what their reports measure, and whether any guarantees depend on work they control.