CPA (Cost Per Acquisition)
What it actually costs you, in ad spend, to win one lead or customer.
…Our primary success metric for this program is CPA, which we’ll set against your actual customer lifetime value.…
What it means
CPA, or Cost Per Acquisition, is total ad spend divided by total conversions — the price to acquire one lead or buyer through a given campaign.
Unlike CPC, which measures the cost of interest, CPA measures the cost of an actual outcome, which is why it’s usually the metric that decides whether a campaign is truly profitable.
Ties spend to real outcomes
CPA answers the question that actually matters: what did it cost to get a customer?
Sets a clear profitability line
Comparing CPA to customer value tells you instantly whether a campaign is worth scaling.
Guides budget shifts
Channels and campaigns with the lowest CPA are the ones that deserve more budget.
DNA's Take: We set CPA targets before a campaign launches, based on your actual margins and lifetime value — not an industry average — so every dollar of spend is measured against real business impact.
Talk to our team