CPA (cost per acquisition, sometimes “cost per action”) is the average ad spend required to produce one conversion — ad spend divided by the number of conversions of a given type. It is the headline efficiency number most advertisers optimize toward: a lead, a sale, or a signup, and what each one costs.
How AnyTrack reports CPA
Section titled “How AnyTrack reports CPA”AnyTrack does not expose a single blended “CPA” column; instead the Campaign Report breaks cost down per conversion type — Cost per Lead, Cost per Purchase (CPP), Cost per Complete Registration, Cost per Add to Cart, and so on — each computed as total ad spend divided by the count of that event. Because those conversion counts come from AnyTrack’s server-side integrations (not just the ad platform’s pixel), the resulting per-acquisition cost reflects conversions the browser would have lost.
AnyTrack cost-per-conversion vs the platform’s CPA
Section titled “AnyTrack cost-per-conversion vs the platform’s CPA”Like ROAS, the same word names two differently-calculated numbers. The Campaign Report’s per-conversion costs divide fetched ad spend by AnyTrack’s server-side tracked conversion counts; the CPA shown in Ads Manager divides the same spend by the platform’s own attributed conversion counts, which include modeled and post-view credit. The two legitimately differ — a platform CPA lower than AnyTrack’s usually means the platform is crediting itself with conversions the click data doesn’t support.
CPA vs CPC vs CPM vs ROAS
Section titled “CPA vs CPC vs CPM vs ROAS”- CPC — the cost of one click, an upstream traffic cost; many clicks typically precede one acquisition.
- CPM — the cost of 1,000 impressions, an ad-delivery cost; CPA measures the cost of the outcome, not the delivery.
- ROAS — the inverse perspective: ROAS measures revenue earned per dollar, while CPA measures cost paid per conversion.
