In version 9.2.2 HF1 and below, over time orphaned records may build up in the aw_job_queue_activity table.
While this does not appear to have an negative effects, in version 9.3.x and above, these orphaned records may cause a number of issue when starting the Applications Manage processes.
Issue behavior may include the following:
Release : 9.3
To avoid this issue from occurring, it is highly recommended that a "clean up" is made to the so_job_queue and aw_job_queue_activity tables.
Please contact Support for more information and reference this KE article