When you export a report using the Export button, the report exports normally. However, when scheduling it, the export fails and the app-ca.log shows an error similar to:
ERROR[...]com.ca.ppm.export.ExportException: Failed to process export for report 9488642[...]Caused by: com.ca.ppm.export.ExportException: Export failed. Records to be exported exceeds the limit of 250000
Clarity 16.4.2
The scheduled report filter setting is not the same use during the immediate export, and the scheduled report hits the row limit.
Review that the selected filter settings in the Schedule > Filter tab match the ones used in the immediate export.