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GrowthBook Users

With GA4, instead of pulling data from the API (which is where the limitations come from), we require you to sync the data to BigQuery first. Google has an article on how to set that up. <https://support.google.com/analytics/answer/9823238|https://support.google.com/analytics/answer/9823238>

Instead of using custom dimensions, you would just fire a new event in the SDK tracking callback with the experiment and variation id.

<@U01TCPDB58C> Thanks! Set up the export a little while ago. Do you have any SQL samples for querying GA4 data from BigQuery by chance? Still trying to figure out how to pull in the metrics we need to measure. If not, no worries. And would that new event in the callback look different from the one we currently use for GA UA? Thanks!

That event looks good to me. The dimension part is not required anymore, but it won't hurt anything.

For example queries, when you connect to BigQuery in GrowthBook, we ask you what event tracking system you use. If you pick GA4, we auto generate the queries for you.

You can see the code we use to build the default GA4 queries here <https://github.com/growthbook/growthbook/blob/main/packages/front-end/services/datasources.ts#L36|https://github.com/growthbook/growthbook/blob/main/packages/front-end/services/datasources.ts#L36>