What is required for User ID to track users across different devices?
- Google Tag Manager
- Sign-in that generates and sets unique IDs
- A new Analytics account for reporting
- All of the above
Correct answer is:
- Sign-in that generates and sets unique IDs
Explanation:
The User ID enables the association of one or more
sessions (and any activity within those sessions) with a unique and persistent
ID that you send to Analytics. To implement the User ID, you must be able to
generate your own unique IDs, consistently assign IDs to users, and include
these IDs wherever you send data to Analytics. For example, you could send the
unique IDs generated by your own authentication system to Analytics as values
for the User ID. Any engagement, like link clicks and page or screen
navigation, that happen while a unique ID is assigned can be sent and connected
in Analytics via the User ID.
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