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[GA4] Measure activity across platforms with User-ID - Analytics Help

https://support.google.com/analytics/answer/9213390

“Send user IDs generated by your business to your Analytics propertyThe User-ID feature lets you associate your own identifiers with individual users so you can connect their behavior across different” (the page’s own description)

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Language: English
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Answered: OK (200), HTML
Last read: 8 Jul 2025
In our index since: 8 Jul 2025
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Links to it: Linked from 1 site

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Who links to it

https://developers.google.com/analytics/learn/marketers “Send a user ID”
https://firebase.googleblog.com/2019/11/firebase-expands-support-for-web.html “setting the user_id”
https://support.google.com/analytics/answer/9143382 “user_id”
https://firebase.googleblog.com/2020/10/latest-in-app-analytics.html “a special view in your reporting”
https://support.google.com/analytics/answer/7397304 “the User-ID feature”
https://support.google.com/analytics/answer/9379599 “Learn more.”
https://support.google.com/analytics/answer/10075209 “the User-ID feature”
https://firebase.googleblog.com/2019/07/firebase-google-analytics-upgrade.html “here”
https://firebase.google.com/support/release-notes/ios “User ID”
https://firebase.googleblog.com/2019/11 “setting the user_id”

Sites: developers.google.com, firebase.googleblog.com, firebase.google.com, support.google.com

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