Revenue can still climb while contribution dies. Paid acquisition gets less efficient, more customers cancel or never reorder, and shipping takes another bite of every order. Blended ROAS can still look fine. The bank balance a few weeks later often does not.
Contribution Margin After Ads: When CAC, Churn, and Shipping Break Growth
Contribution after ads is the scoreboard when CAC rises, churn climbs, and shipping gets more expensive. Put three levers on one page before you pour more spend into the same machine.
Takeaways
Gate marketing efficiency on the books, not only Ads Manager. Separate new-customer spend when you can, and hold a CAC or payback floor finance and marketing both signed. If you miss it for two or three weeks, cut or reallocate.
Treat churn and reorder as a cash lever. If the base thins while new-customer volume is the only growth story, retention work comes before more media capital.
Put shipping in variable contribution (outbound cost net of shipping income). A "small" parcel move can erase the gain from a creative test.
Read the full piece: Contribution Margin After Ads
Three-gate scoreboard
Would new-customer spend still clear our floor if returning contribution paid for nothing this week?
Is churn or reorder moving contribution on the base, or are we buying traffic to stand still?
Is variable ship + fulfill per order in the contribution math, or still buried in a freight lump?
Market pulse
Food packaging PE: Butterfly Equity signed a definitive agreement to buy Sabert (plastic, paper, and molded-fiber food packaging; about 3,000 employees, 13 plants including 9 in the US), with close targeted for Q4 2026. Terms undisclosed; founder/Exec Chair stays as a meaningful minority investor. Useful supply-side signal for brands watching packaging capacity, specs, and cost into peak. Packaging Dive
Consumer-health PE: Kobayashi Pharmaceutical confirmed a preliminary take-private proposal from affiliates of CVC Capital Partners and Nippon Sangyo Suishin Kiko (rumored above ¥500bn / about $3.2bn). No decision or set price yet. Reminder that distressed OTC-adjacent household and personal-care assets still draw sponsor capital. Japan Times / Bloomberg
Client spotlight: Loopini
Proud of our partners at Loopini. Founder Damiano Messineo shared that for the first time they're going West Coast retail, landing in Erewhon starting October. Worth a look if you watch specialty grocery or coastal retail load-ins.
Reply to this email if you want a second set of eyes on your after-ads contribution math, or book a Teicor intro.
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