How many user cookies does an audience list require to be eligible for AdWords Search Ad remarketing?

To be eligible for AdWords Search Ad remarketing, an audience list must contain a minimum of 1000 user cookies. This requirement is in place to ensure that there is a sufficient pool of users for targeting, allowing advertisers to effectively reach their intended audience. A larger audience size enhances the effectiveness of remarketing campaigns, providing more opportunities for ad exposure and engagement with potential customers.

Remarketing relies on cookies to track user behavior and interests, and having at least 1000 user cookies helps maintain privacy standards and reduce the likelihood of targeting too small a group, which could lead to ineffective ad delivery. Thus, meeting this threshold is essential for achieving better results in remarketing efforts.