We've recently noticed an issue where we are getting back blank reports, possibly related to other users ReportDownload errors.
When running the following AWQL report request to v201702 we're getting a blank report returned. No actual errors reported, just a report with empty data rows. I have confirmed that we had campaigns that meet the conditions with clicks, impressions, and cost, but can't get the report to go send data back.
SELECT CampaignId, CampaignName, CampaignStatus, Clicks, Impressions, Cost FROM CAMPAIGN_PERFORMANCE_REPORT WHERE CampaignStatus != 'REMOVED' AND Impressions > 0 DURING 20170327,20170402
Anybody have any suggestions, or see anything I'm doing wrong?