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Comment by lmkg | Hacker News Reader

I am a Google Analytics consultant. Let me make this very clear: There are different products and everything will be lost.

This is not an "upgrade." This is "replace product with a different product in the same space." Old GA data is incompatible with GA4 data, and there is no way to bring data from one into the other. Google is discontinuing Google Analytics, and applying the Google Analytics brand to Firebase Analytics.

Nothing carries over. Configuration, implementation, goals, user permissions, historical data, nothing. It all has to be re-built from scratch.

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Seriously? They're shutting down Google Analytics? Deleting all data six months later? The replacement is a completely different product with the same name but no migration path, and wasn't even the default option less than two years ago?

The Google deprecation team has really outdone themselves this time. I really would have thought they'd deprecate Gmail before Google Analytics! I've got to imagine there are legal reasons behind this, because no product team could sincerely believe that this is a good idea for the product, right?

> Seriously? They're shutting down Google Analytics? Deleting all data six months later? The replacement is a completely different product with the same name but no migration path, and wasn't even the default option less than two years ago?

Yes. That's what the original post and the entire discussion here is about.

This seems really primed to get people to ask "if we are rebuilding it anyways why not consider other analytics servies"

I imagine you'll hear a lot of that in the near future

Same; we have been doing a lot with it. The GA4 way of working is a big shift for some properties, for sure. Good time to be working!

I'm confused, you say that no data will be lost, then someone replies to you and says all data will be lost, and then you agree with them? What am I missing.

He’s talking about the setup work to use 4. I’m sure he’s running them in tandem right now.

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