In plain English
Nothing changed in the account. The audience has simply seen the ad enough times to stop registering it, and cost per result climbs.
In Meta reporting the signal is frequency rising while click-through rate falls. That pattern appears well before cost per acquisition clearly deteriorates.
What to know
Why it matters
Fatigue is the most common cause of a Meta account that worked for two months and then stopped. It is also the most preventable, given a steady creative supply.
Common mistakes
FAQs
How do I spot it early?
Watch frequency against click-through rate weekly.
How often do I need new creative?
Whenever that pattern appears. Monthly for most active accounts.
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