A US food delivery app
The problem
Operating in 28 metros, it had to win more first-order customers with the budget frozen. Platform-reported numbers were no longer accepted: only deduplicated customers the ads actually caused counted, and payback had to stay under six months.
What changed
One definition of a new customer across Google and Meta, counted once. Budget moved weekly by marginal return, and spend was timed to the months when demand was high and ads were cheap.
Incremental new customers
Cost per incremental customer
Payback: about 4.5 months, every month inside the six-month limit.
The result, Year 1 to Year 2, on the same $14.69 million
Lower is better.
| Measure | Year 1 | Year 2 | Change |
|---|---|---|---|
| Incremental new customers | 418,879 | 503,767 | +20.3% |
| Cost per incremental customer | $35.07 | $29.16 | −16.9% |
Payback about 4.5 months, every month inside the six-month limit.

