For Dynamic Re marketing, what kind of variable needs to be set up in Tag Manager to collect information in the data layer?

A Data Layer variable is essential for Dynamic Remarketing because it allows Tag Manager to read specific values pushed into the data layer on your website. These values, such as product IDs, prices, or page types, are critical for personalizing ads to users based on their past interactions. The Data Layer variable extracts this information, making it available for use in your remarketing tags. A Constant variable holds a fixed value, not dynamic data. A Google Ads variable is used for configuring Google Ads tags, not for extracting data from the data layer. An Event variable captures information about user interactions (like clicks), but for structured product data needed for Dynamic Remarketing, a Data Layer variable is the appropriate choice.