An ecommerce specialist knows a small margin can vanish when ad costs rise or...

https://landensexpertnews.scriblorax.com/posts/what-is-the-difference-between-ecommerce-marketing-and-marketplace-marketing

An ecommerce specialist knows a small margin can vanish when ad costs rise or delivery disappoints. They shape ads, email and product pages around how shoppers compare prices, reviews and delivery, helping turn more visits into profitable orders.