Scheduled Report Jobs Automatically Copied to Sandbox During Creation or Refresh

This is expected behavior. Scheduled report jobs (CronTriggers) are included as part of the sandbox copy process and therefore appear in the sandbox automatically after creation or refresh. Administrators can verify this by querying the CronTrigger object in the Sandbox. If undesired, these scheduled jobs should be manually paused or deleted post-refresh.

To verify the copied scheduled jobs in the Sandbox, run the following query in the Developer Console or Workbench: SELECT Id, CronJobDetail.Name, State, NextFireTime FROM CronTrigger WHERE CronJobDetail.Name LIKE '%Report%