Killed CBO, went island bid caps — CPA dropped 31%
Monday, $400/day account, CBO dumping 70% into one fat ad set. Tuesday I broke it apart:
— 6 ad sets, own daily budgets
— bid cap $14 (target was $18)
— turned off the auto-shifting
By Friday the loser sets starved, winners ate clean. CPA $19.40 → $13.30. Volume held.
CBO hides which set is actually carrying you. Pull it apart for 5 days and look. Dare you.
Buyer's Trenches
@BuyersTrenches
Killed CBO, went island bid caps — CPA dropped 31%
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