Hello Johan,
We will be able to address concerns specific to AdWords API/Google Ads API on this forum. It looks like you are having an issue generating the report data in BigQuery, you will need to get in touch with the BigQuery team by contacting them through the support channels available
here. If you are seeing any data discrepancies with Google Ads API reporting and Google Ads account, please elaborate and we will be happy to take a look.
Thanks,
Bharani, Google Ads API Team

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