Specialist ecommerce marketers know tight margins leave little room for wasted...

https://bizzmarkblog.com/what-is-cro-in-ecommerce-and-what-do-specialists-test-first/

Specialist ecommerce marketers know tight margins leave little room for wasted spend. They shape campaigns around products, stock and conversion, helping your shop compete when shoppers quickly compare prices, reviews and delivery before they buy.