Choose an ecommerce SEO partner based on your business goals, not a promise to...

https://touch-wiki.win/index.php/How_Do_Agencies_Decide_SEO_Priorities_for_Ecommerce%3F

Choose an ecommerce SEO partner based on your business goals, not a promise to rank. Ask how they handle faceted navigation and stockouts, which reports tie SEO work to sales, and what any guarantees cover—and exclude.