How often should you view your asset report and replace low-performing assets for a Discovery campaign?

For a Discovery campaign, you should view your asset report and replace low-performing assets bi-weekly because this frequency balances the need for data-driven optimization with the machine learning model's requirement for a stable "learning" period. Making changes too frequently, such as daily, disrupts the system's ability to identify which creative combinations effectively drive conversions, while waiting monthly or quarterly may lead to wasted spend on underperforming visuals. Rotating assets every two weeks ensures the campaign remains fresh for audiences across Google’s personalized feeds while providing the algorithm with a sufficient sample size to accurately rank performance.