Definition
Ad fatigue happens when an audience sees the same creative too often and performance declines.
Example
CTR drops from 1.8% to 0.9% as frequency climbs from 2.5 to 6.0.
How to use it
- Watch frequency and CTR trends to spot fatigue early.
- Rotate new hooks and offers before CPA worsens.
- Segment by audience size; small retargeting pools fatigue faster.
Common mistakes
- Letting frequency climb without refreshing creative.
- Pausing too early without confirming that fatigue, not targeting, is the issue.
- Reusing the same creative angle across all placements.
Measured as
Measure Ad Fatigue with a fixed attribution window, conversion event, and spend basis before comparing campaigns or creative tests.
Misused when
- Letting frequency climb without refreshing creative.
- Pausing too early without confirming that fatigue, not targeting, is the issue.
- Reusing the same creative angle across all placements.
Operator takeaway
- Watch frequency and CTR trends to spot fatigue early.
- Rotate new hooks and offers before CPA worsens.
- Segment by audience size; small retargeting pools fatigue faster.
- Use Ad Fatigue only inside a stable attribution rule, conversion definition, and time window so campaign comparisons stay honest.
- If performance changes, check whether the metric moved for a real business reason or because the measurement setup changed underneath you.
Next decision
- Read Frequency and creative fatigue: diagnose performance decay and fix it if the decision depends on interpretation, policy, or trade-offs beyond the raw formula.
- Decide which report owns Ad Fatigue before comparing campaigns, channels, or creative tests.
Where to use this on MetricKit
Guides
- Frequency and creative fatigue: diagnose performance decay and fix it: Learn how frequency, reach, and impressions interact with CTR/CVR, when to cap frequency, and how to refresh creatives without tanking learning.