Ad Creative Fatigue
Ad creative fatigue occurs when an audience has seen the same ad too many times, causing declining CTR, rising CPM and worsening performance.
Creative fatigue is the gradual performance decay that happens when your audience becomes over-exposed to the same ad. The signals are falling CTR, rising frequency, increasing CPM and a climbing CPA — often appearing 7–21 days after launch depending on audience size.
Fatigue is the #1 reason winning ads stop working. It's not that the audience changed; it's that the same people are seeing the same message for the fifth or tenth time and their brain filters it out.
The antidote is creative rotation: have 3–5 ad variants in every ad set and refresh the weakest performer every 1–2 weeks. Focus refreshes on the hook first (the part most affected by fatigue) before re-doing the entire ad.
Related terms
Ad Frequency
Ad frequency is the average number of times a single user sees your ad within a given time period.
Hook
A hook is the opening 1–3 seconds of a video ad, designed to stop the scroll and compel the viewer to keep watching.
CTR
CTR is the percentage of people who click your ad after seeing it, calculated as clicks divided by impressions times 100.
CPM
CPM is the cost an advertiser pays for 1,000 ad impressions, used to compare media costs across platforms and campaigns.