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

https://wiki-mixer.win/index.php/Should_I_Noindex_Out-of-Stock_Pages_or_Keep_Them_Live%3F

Choose an ecommerce SEO partner based on your business goals, not a promise of more traffic. Ask how they manage faceted navigation and stockouts, what their reports measure, and whether any guarantees are realistic and clearly defined.