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DISCLAIMER: I'm a backend guy so these frontend technicalities are not my strongest skill! 😄

In GrowthBook, you can customize the SQL used to pull the data out of BigQuery, so we're super flexible with how you store it. Something like this should work fine:

gtag('event', 'viewed_experiment', {
  experiment_id: experiment.key,
  variation_id: result.variationId
});

OK! 👍 Thanks again @future-teacher-7046! 🫶