Echo remarketing uses dynamic content from what source?

Echo remarketing, a feature within Google Marketing Platform, leverages Custom Floodlight variables to personalize ad content. These variables capture specific user interactions or attributes on a website, such as products viewed, items added to a cart, or conversion values. This data is then used to dynamically populate ad creatives with relevant content for individual users, enhancing the effectiveness of remarketing campaigns. While creative code defines the ad's structure, and a feed might supply product data, Custom Floodlight variables are the specific mechanism for capturing and passing user-specific data for dynamic content in Echo remarketing. Dynamic rules dictate how content is displayed, but not the source of the dynamic data itself.