I need to retrieve Customer's raw data from Google Analytics or use an API. I am not sure which API would give all of customers interactions on the site. I have to load this data on Azure data lake for advanced reporting. Also, where does the actual data reside? Please assist.
Raw data can be exported in BigQuery. The link to BQ is currently free for GA4 Property while for Universal Analytics you must have the GA360 paid plan. You can get data with API as well but not raw.