Same winning creative in every audience and overlap is killing you?

Same winning creative in every audience and overlap is killing you?

You cloned one ad into 6 audiences that all overlap. Now those ad sets bid against each other in the same auction — that's auction overlap, and it inflates your own CPMs.

Clean it up:

— Check the Audience Overlap tool before launching parallel sets
— Exclude buyers/engagers across ad sets so you're not double-targeting
— Consolidate overlapping audiences into one broad set and let CBO sort it

You can outbid everyone except yourself.

Note: some overlap is unavoidable at scale — the goal is reducing it, not zero. Run the overlap check on your current setup this week.