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Metrics
CPL (Cost Per Lead)
CPL (Cost Per Lead) is the average cost to acquire one lead, calculated as total campaign spend divided by the number of leads generated. It is an early-funnel efficiency metric that tells you how affordably you are filling the top of the pipeline. CPL only tells half the story on its own — a cheap lead that never converts is expensive in disguise — so it is most useful alongside lead quality, conversion rate, and CAC.
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