Creative fatigue occurs when an ad's effectiveness decreases because the target audience has seen it too frequently, leading to lower engagement and conversions.
Understanding and monitoring creative fatigue is critical for maximizing return on ad spend (ROAS). Allowing a fatigued creative to continue running results in wasted budget on impressions that no longer effectively engage or convert users. It can also harm brand perception if repetitive ads lead to a negative user experience. Advertisers must implement a system for creative testing and iteration. By regularly introducing new ad variations—such as different headlines, images, videos, or calls-to-action—they can keep their campaigns fresh and maintain performance over time. Analyzing metrics like frequency alongside engagement and conversion rates helps advertisers identify the early signs of fatigue and act proactively.