- Ad Fatigue (Auction Decay) | Performance Marketing Glossary | eonik Pricing Download 
# Ad Fatigue (Auction Decay)

## What is Ad Fatigue (Auction Decay)?

Ad fatigue is auction-level decay: overlapping audiences see the same creative footprint until marginal CPA rises. Hook rate falling versus your baseline often shows up before CPA. Fresh structural variants (not minor tweaks) reset the signal. Read it against your own account. eonik is a Mac app for ads: consider what to make next, then the on-brand cut. You approve. It never spends.

 Abinash · June 9, 2026 · Updated August 13, 2026 

Testing cluster

Pillar: Creative testing math 

 Variant workflow 

- Hook rate 

- Hold rate 

- Ad fatigue 

- Creative velocity 

- UGC framework 

- How to read Meta metrics 

- Limited-budget tests 

- Programmatic creative 

## What is Ad Fatigue (Auction Decay)?

Ad fatigue is auction-level decay: overlapping audiences see the same creative footprint until marginal CPA rises. Hook rate falling versus your baseline often shows up before CPA. Fresh structural variants (not minor tweaks) reset the signal. Read it against your own account. eonik is a Mac app for ads: consider what to make next, then the on-brand cut. You approve. It never spends.

This term defers to the pillar guide. Formulas, how to read them, what to make next:

 Read the canonical guide → 
## Tweak vs new structure
 Refresh Usually Better when tired LUT / crop Same footprint Rarely resets fatigue New opening, locked body Isolatable The operator move Full reshoot Expensive When the concept itself is dead 
## How to use it in eonik

Monitor hook rate week-over-week and frequency trend. Ship structural variants before ROAS drops. Throughput beats guessing. There is no official frequency kill line.

## What usually breaks

- Waiting for ROAS to drop before reading hook rate.

- Asking software to pause spend.

## FAQ

### What is Ad Fatigue (Auction Decay)?

Ad fatigue is auction-level decay: overlapping audiences see the same creative footprint until marginal CPA rises. Hook rate falling versus your baseline often shows up before CPA. Fresh structural variants (not minor tweaks) reset the signal. eonik is a Mac app for ads. You approve every cut. It never spends. Download for Mac when assembly is the gap.

### How do performance teams apply Ad Fatigue (Auction Decay)?

Monitor hook rate week-over-week and frequency trend. Ship structural variants before ROAS drops. Throughput beats guessing. There is no official frequency kill line. Isolate one variable. Compare to your baseline, not a published benchmark. eonik is a Mac app for ads. You approve every cut. It never spends. Download for Mac when assembly is the gap.

### Does eonik publish a Ad Fatigue (Auction Decay) benchmark?

No. There is no official eonik or Meta league table for Ad Fatigue (Auction Decay). Compare variants in the same account and window. eonik is a Mac app for ads. You approve every cut. It never spends. Download for Mac when assembly is the gap.

## Sources

- Meta: About video ad metrics 
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