CAC reduction
−41%
Inside 60 days, same spend.
Payback period
1.8mo
Down from 3.2 months.
Blended ROAS
2.8×
Across Meta + Google combined.

The challenge

The company had raised a Series A and was scaling spend fast — but without a CAC payback model. Every audience looked the same inside the ad platforms, and the finance team was starting to ask questions nobody could answer.

Broad targeting had worked at $20k/month. At $80k/month, it was lighting money on fire. They needed a media strategy that tied acquisition cost to unit economics, not vanity metrics.

What we did

  • Rebuilt attribution with server-side tracking and a first-party data layer tied to downstream activation events.
  • Implemented a CAC payback model that scored every audience by predicted LTV, not just CPA.
  • Killed four underperforming audience segments that looked efficient on click metrics but had abysmal activation rates.
  • Concentrated 70% of budget on two high-intent segments and built creative specifically for each.

The outcome

CAC dropped 41% in 60 days. But more importantly, the customers they were acquiring started activating faster and retaining longer. Payback period compressed from 3.2 months to 1.8.

The board signed off on a 2× budget increase in the following quarter. The finance team finally had numbers they could model against.

"We stopped guessing and started modeling.
— VP Growth · Series A consumer fintech
→ NEXT CASE

№009 —
DTC Skincare.

How lifecycle rebuilds and bundle pricing turned a one-purchase brand into a 62% LTV increase.