What's changing? AdWords API  and Google Ads scripts  reports. If your reporting queries include these column combinations, you need to fix your queries before Feb 15, 2021 .Technical details Feb 15, 2021 , you will receive a ReportDefinitionError.INVALID_FIELD_NAME_FOR_REPORTAdsApp.report
  ConversionAdjustmentConversionAdjustmentLagBucketConversionAttributionEventTypeConversionCategoryNameConversionLagBucketConversionTrackerIdConversionTypeName 
Metrics columns:
  AllConversionRateConversionRateCostPerAllConversionCostPerConversionCostPerCurrentModelAttributedConversion 
The ReportDefinitionService.getReportFieldsexclusiveFieldsWhat should you do? Feb 15, 2021 , review and modify the reporting queries in your AdWords API and Google Ads scripts applications to stop using the prohibited column combinations.Why is this changing? Google Ads UI , Google Ads Editor and the Google Ads API. This change makes the AdWords API and Google Ads scripts behaviour consistent with the rest of the Google Ads platform.forum .- Anash P. Oommen, Google Ads API Team