Google Analytics Client ID vs User ID

Learn the difference between Google Analytics Client ID and User ID.

Client ID is a randomly generated ID that is stored by Google Analytics in visitor's browser. But it has its drawbacks.

User ID is your user's/customer's ID that is stored in your data base. When the user logs in to his/her account, you can enrich GA4 data with that ID.

=== LINKS ===

⭐⭐ Google Analytics 4 course ⭐⭐

📕 Free e-book: Getting Started with Google Analytics 4

✭ Blog post: GA4 client ID vs User ID

✭ Blog post: how to set up User ID in Google Analytics 4

=== CONNECT WITH JULIUS & ANALYTICS MANIA ===

#googleanalytics #googleanalytics4

[rcbilly]

I would like to see more of this interesting topic. Great video thank you

[ranveermohite]

I've been watching your videos recently. Very very useful. Thank you for the amazing content you share.

[youllneverscrollalone]

like to see more GA4 top used functions, or top most under-used but insightful features?

[grizfan]

If anyone is struggling to track conversion data (in Google Ads or GA4) when the website has a third-party checkout system embedded in an iFrame, this is why tracking is failing. It is possible to maintain a client-ID between the parent page and child page in the iFrame, but that is super-advanced, and requires you to have a lot of control over the code on both sites. I spent months trying to sort this out, before giving up and going with a new vendor for the checkout system where we didn't need to use the iFrame.