What values are included in the targeting column of a remarketing feed?

The targeting column in a remarketing feed uses Floodlight custom variable ("u-var") values to dynamically populate remarketing lists. These custom variables capture specific user attributes or actions on a website, which can then be used to segment audiences for targeted advertising. Third-party cookie values are generally not directly used for remarketing feed targeting due to privacy concerns and browser restrictions. The advertiser's cookie values are typically first-party and used for tracking, but not for defining remarketing segments within a feed. Floodlight audience list IDs are identifiers for existing audience lists, not the values used to populate those lists.