To recognize users across different devices, what is required for User ID?
- Google Tag Manager
- Sign-in that generates and sets unique IDs (Correct Answer)
- A new Analytics account for reporting
- All of the above
You need a sign-in that generates and sets unique IDs to set a user ID that recognizes a single user across various devices.
Even with the advent of cookies and tags, creating user sign-ins for your website offers you the most reliable user data. This is particularly true when monitoring user activity across different devices.
In addition to tracking sessions and session durations, sign-ins delivering user IDs (also known as persistent IDs) can help you measure the nature of each visit with greater accuracy. A single user signing in across multiple devices/locations will take certain actions that, when all combined together, tell you a broader story about the relationship between your site and its visitors.