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

https://www.slideserve.com/richard_russell21/how-long-does-ecommerce-seo-usually-take-to-show-results

Choose an ecommerce SEO partner based on your business goals, not a generic traffic target. Ask how they handle faceted navigation and stockouts, how reports connect work to revenue, and exactly what any guarantee covers.