Oct122026
Marketing Key Performance Indicator for Customer Acquisition Cost
Customer acquisition cost, CAC, looks simple on paper. Spend money on marketing, count new customers, divide one by the other. Done. The problem is that every team I have worked with eventually hits the same wall: the number stops meaning what it used to mean. CAC becomes a marketing KPI you can argue about, massage, or abandon unless you design it with discipline. The difference between a useful marketing key performance indicator and a misleading vanity metric is mostl