Oracle Error ORA-29352: event ‘string’ is not an internal event

Oracle Error Message

ORA-29352: event ‘string’ is not an internal event

Reason for the Error

The DBMS_SYSTEM.WAIT_FOR_EVENT procedure was called with an event name that is not an internal event.

Solution

Check the list of events from X$KSLED and verify the event name parameter passed to the WAIT_FOR_EVENT procedure.