Decision Walk: Rising CAC Across Channels
Diagnose rising CAC by checking downstream economics instead of chasing lower top-of-funnel cost blindly.
Budget week Blended CAC rose from $3,900 to $5,000 in a quarter. Paid search drew the blame, but gross-margin payback also stretched from 9 to 13 months. Cheaper clicks are not always the right fix when the customer path changed underneath. Follow the denominator too CAC changes when either spend changes or customer conversion quality changes Ask whether the cost went up, the number of acquired customers went down, or the downstream path got heavier and slower. Weak shortcut “Cut the most expensive ad channel.” The best fix targets the stage where acquisition economics truly changed. CAC is only useful…
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