This article is no longer relevant. This article is related to Universal Analytics which is out-dated and is no longer in use.
Refer to the GIF image below to activate USER-ID tracking in Google Analytics
![](https://www.huntbee.com/resources/wp-content/uploads/2020/05/ga-user-id-setup-1024x568.gif)
Reference: https://support.google.com/analytics/answer/3123666?hl=en&ref_topic=3123660