What is the minimum requirement for remarketing audiences to function effectively?

The correct answer is based on the guidelines established by Google Analytics for creating remarketing audiences. A minimum of 100 users is required to ensure that the audience is effective and capable of delivering meaningful ad targeting. This threshold helps maintain user privacy and data integrity, as smaller audiences may not have enough users to represent a significant segment of traffic, which could lead to less effective remarketing strategies.

If the audience size is smaller than this threshold, it might not provide enough data for Google Ads or other advertising platforms to serve relevant ads appropriately, thus limiting the effectiveness of remarketing efforts. Audiences below this size risk being too narrow or not providing sufficient insights for advertisers, thereby impacting engagement and conversion potential.