First-order ROAS is a lie
Brands optimizing for first-order ROAS are optimizing for the slowest growth possible. Every winning DTC brand of the last five years has been willing to break even - or lose a little - on order one, because they know order two, three, and four are almost pure margin.
We rebuild the media plan around contribution margin over 90 days, then use email, SMS, and retention offers to make the back-end deliver the margin the front-end doesn't.