In CA Software Asset Manager, the master cron job is not kicking off scheduled jobs

Document ID : KB000005825
Last Modified Date : 14/02/2018
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Issue:

After one of the cron jobs experienced an error, the other scheduled cron jobs are not starting on their own when their scheduled time occurs. 

An example is the mail_queue cron. It is supposed to run every minute. I can run it manually and it will send mail, but the master cron job isn't picking it up after for the recurring execution times. 

Environment:
CA Software Asset Manager 4.x
Cause:

The master cron job in the windows task scheduler was running with the IIS_IUSR account. 

Resolution:

Changed the master cron job in the Windows Task scheduler to run with a service account.  

The user that runs the master cron job should have permission to the SAM database.