Job Definitions are not active

What causes this issue?

No job definitions of Enterprise Search are active in this system. They
must be active and scheduled with user SAP_SYSTEM.

System Response

Various periodic tasks are not executed. They underlying data is no
longer up to date.

How to fix this error?

Contact the operations team.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.