What Is Performance Marketing? CPL, CAC and ROAS Explained
Performance marketing evaluates acquisition activity against defined outcomes such as qualified leads or sales. CPL, CAC and ROAS answer different questions and should be interpreted with margin and sales quality.
What to do first
Calculate CPL as advertising spend divided by leads, keeping the lead definition explicit.
Implementation and review
- Calculate acquisition cost using the agreed costs and number of acquired customers.
- Calculate ROAS as attributed revenue divided by advertising spend and review profit separately.
What to watch for
A high ROAS does not guarantee profit, and a low CPL does not guarantee suitable customers.
A practical example to work through
Imagine an advertisement produces an inquiry that later becomes a customer. The inquiry contributes to the lead count, the customer contributes to acquisition cost and any platform-assigned sale value contributes to that platform's ROAS. Those are different views of the same journey. Define the reporting source and period before comparing the metrics, and use business costs to assess profitability.
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References and further reading
References explain platform behavior; they are not independent verification of portfolio results. Check current documentation before implementation.
Need help applying this? Explore consulting services or review the project results.
Frequently Asked Questions
What is the first step?
Calculate CPL as advertising spend divided by leads, keeping the lead definition explicit.
What should I avoid?
A high ROAS does not guarantee profit, and a low CPL does not guarantee suitable customers.
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