In Google Search campaigns, Jenny routinely replaces low-performing ads, but she knows that Google App campaign best practices are different. For her Google App campaign, how often should Jenny replace low-performing assets with new and improved ones to prevent ad fatigue?

For Google App campaigns, replacing low-performing assets every two to three months is a best practice. This allows the campaign sufficient time to gather data and for the machine learning algorithms to optimize performance based on the new assets. Replacing assets too frequently, such as every two to three days, every week, or even every month, doesn't give the system enough time to learn and can disrupt optimization, leading to suboptimal results. App campaigns rely on machine learning, which needs a stable set of assets and time to iterate and improve.