There’s a sweet spot to hit when it comes to ACoS; you want to spend as little as possible on sponsored ads while also attracting as many suitable buyers to your listings. Linking the right shoppers with the right products can help drive conversions (sales). At the same time, you don’t want to underspend on campaigns as you won’t reach as many prospective buyers. Figuring out how much profit you’ll make per unit sold can help you determine whether optimizations need to be made.