Learn business growth with Google Analytics 4 › Forums › Google Analytics 4 › Retrospective data integration from GA4 to BigQuery › Reply To: Retrospective data integration from GA4 to BigQuery
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Sadly, at the moment, there’s no Google-supported way to backfill the historical data from GA4 into BigQuery. You can’t pull full historical event-level data from the Analytics Data API currently. So for GA4, the BigQuery export essentially starts from the day you enable it.