For what purpose would you use data-driven creatives with dynamic rules in Display & Video 360?

Data-driven creatives with dynamic rules in Display & Video 360 allow for personalized ad experiences. This means you can customize various elements (like headlines, images, or calls to action) of a single creative based on specific audience segments, real-time data, or other defined rules. This ensures that each user sees the most relevant version of your ad, improving engagement and campaign effectiveness. "To customize your creatives for mobile apps" is too narrow; dynamic rules apply across various environments, not just mobile apps. "To measure the performance of your creatives against your goals" describes a function of reporting and analytics, not the primary purpose of dynamic creative itself. "To directly upload the creatives you built to Display & Video 360" describes a basic creative management function, not the advanced capability of dynamic rules.