User Identity Matching: How Platforms Do It, Limitations, and Does Extending Help Campaign Performance

Every platform, like Meta, Google, and Klaviyo, want (need) a way to identify new and returning users to help maximize the ROI on your campaign performance. Historically this was primarily done through cookies. But over the last several years there have been solutions, like Elevar and others, that have focused on helping these platforms extend their lookback window. Learn the nuances of how User IDs work and their impact on performance.