June 16, 2026
The only four metrics that actually predict ad profitability
Dashboards are full of numbers that feel important and change nothing. Here are the four that decide whether your ad account makes money.
Most ad dashboards are a wall of vanity. Impressions, reach, CTR, engagement — they move, you feel something, and none of it tells you whether you made money.
After auditing hundreds of accounts, we keep coming back to the same four numbers.
1. Contribution margin per order
Revenue minus COGS, shipping, payment fees, and the ad cost to acquire it. If this is negative, nothing else matters. ROAS can look healthy while every order loses money — margin is the truth.
2. Customer acquisition cost (CAC), blended
Total spend divided by new customers, across every channel. Per-platform ROAS lies because channels assist each other. Blended CAC is the number your bank account understands.
3. Payback period
How many days until a customer's gross profit covers their CAC. Under 60 days and you can scale aggressively on cash flow. Over 120 and growth will strangle you no matter how good the ROAS looks.
4. Repeat rate / LTV
What a customer is worth over 6–12 months. This is what permits a higher CAC — and it's the metric most brands never connect to their ad decisions.
The takeaway: if a metric can't change a budget decision, stop reporting it. These four can. Build your dashboard around them and ignore almost everything else.