ePORTS — Print on Demand: Advanced
CAC CEILING + SCALING GATE — before a pound goes to ads (chapter 6)

Judge acquisition against LOADED PRE-AD contribution — never revenue,
never a unit figure — and count the ad ONCE. CAC = ad spend / NEW
buyers (not orders, not the platform's ROAS).

  Pre-ad contribution per sale (loaded, NO ad): £__________
  Profit I require per sale: £__________
  -> FIRST-SALE CAC ceiling (pre-ad minus profit): £__________
  Cohort pre-ad contribution (ONLY if PROVEN): £__________
  -> COHORT ceiling (keep ~half is prudent): £__________
     Conditions: cohort proven? __   cash to float it? __
  compute both: eports.global/tools/print-on-demand-allocation

THE ROAS TRAP: break-even ROAS = revenue / pre-ad. A "3x" the
dashboard cheers is break-even on a £68/£22.83 premium and a BLEED
on a £22/£3 tee (needs ~7.3x just to stop losing). Act on YOUR
break-even, never the platform's headline.

THE GATE:
  GATE A — clears the FIRST-SALE ceiling: scale NOW in small steps;
    recheck CAC (on loaded contribution) each step; STOP the moment
    it breaches the ceiling. No payback wait.
  GATE B — clears only the COHORT ceiling: freeze at a baseline; do
    NOT scale until real repeat contribution has paid the gap back.
  Either: advertise only products a real channel can hit; measure
    incrementally (a holdout), not the dashboard's self-reported ROAS.

⚠ CAC rises as you scale (cheap audience runs out). Steps, not leaps.

— From Print on Demand: Advanced — the full method: eports.global/print-on-demand
  Every worksheet, free and kept current: eports.global/resources

ePORTS — your ecom source. eports.global.