Ad Strategy Builder

Why strategy starts with margin and goal math

Most ad strategies begin at the wrong end: which channel, which audience, which creative trend. Those are execution choices, and they only make sense once the math has decided what the plan must achieve. This builder starts where a real plan starts: the gap between current revenue and the goal, the compound monthly growth rate that gap implies, and what your gross margin says you can afford to pay for that growth. Get those three right and the channel decisions become mostly obvious. Get them wrong and no targeting trick saves the plan.

How the MER target maps to margin

MER is total revenue divided by total ad spend, across everything. The builder assumes a target based on your gross margin tier: at 60% margin or better it uses MER = 4, between 40 and 60% it uses MER = 5, and below 40% it uses MER = 6.5. The logic: the thinner your margin, the more revenue each euro of spend must produce before the P&L works. From there, end-of-ramp spend is goal revenue ÷ MER target, and the break-even ROAS reminder is 1 ÷ gross margin, so a 55% margin means any campaign under 1.82 loses money on the first purchase. These are deliberate simplifications. If you know your real blended numbers, use those instead.

What the brief leaves out on purpose

The generated brief has no creative concepts, no competitor analysis, and no market nuance, because a form cannot know your category the way you do. It also assumes your goal is realistic, which the math sometimes disproves: if the required spend looks impossible next to your cash flow, that finding alone is worth the two minutes. Fill the gaps in three ways: run the generated prompt through an AI model for angles and week-by-week detail, check the assumptions against your own historical MER, and pressure-test the whole thing against the same period last year before committing budget. A brief is a starting frame. The work of strategy is everything you write in the margins of it.