Hi Danial,
Does it mean cross-service joins if I join like below:
SELECT Id, Name, Impressions, Clicks, Ctr, AverageCpm, AverageCpc, UniqueUserCountAsLong, ReachFrequency FROM CAMPAIGN_PERFORMANCE_REPORT
JOIN CAMPAIGN_REACH_FREQUENCY_REPORT ON CAMPAIGN_PERFORMANCE_REPORT.Id=CAMPAIGN_REACH_FREQUENCY_REPORT.CampaignId
since I got a query error "Report was not downloaded. HTTP Response Code: 400, Type: QueryError.PARSING_FAILED" from this query.
Can you pls help me to fix it?
Thanks a lot for your kindly help.
Eitan