Is there an event logged when a Job runs in the Web Reports?

Yes, when a scheduled job runs in the Web Reports an event is logged to the Application log with the source EventSentry Web Reports.

These events may be used to trigger various actions with EventSentry.

Report Job

Type: Information
Event ID: 2000
Source: EventSentry Web Reports
Category: Scheduled Jobs
Message: The job "%s" has completed successfully

Type: Error
Event ID: 2001
Source: EventSentry Web Reports
Category: Scheduled Jobs
Message: The job "%s" has failed with the following error:
%s

Maintenance Job

Type: Information
Event ID: 2010
Source: EventSentry Web Reports
Category: Scheduled Jobs
Message: The maintenance job (%s) has completed successfully

Type: Error
Event ID: 2011
Source: EventSentry Web Reports
Category: Scheduled Jobs
Message: The maintenance job (%s) has failed with the following error:
%s