Flipped a winning ABO campaign to CBO and watched it crater?
The mistake wasn't CBO. It was migrating the same campaign instead of building fresh. Toggling budget type mid-flight nukes the learning history.
Do this instead:
— Build a NEW CBO campaign from scratch
— Drop in only your proven winning ads/audiences
— Run old ABO in parallel until CBO exits learning, THEN cut ABO
Never convert a live campaign. Clone the winners into a clean shell.
Heads up: CBO needs 3-4 ad sets to have something to optimize between. One ad set in CBO is just ABO with extra steps. Test the parallel approach on one campaign.
Scale or Stall
@ScaleOrStall
Flipped a winning ABO campaign to CBO and watched it crater?
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