This transaction enables background managers to be controlled. 
Typical usage would be to drop all managers prior to system maintenance and restart afterwards.
N.B. Start the Watchdog first as that will monitor for non-running managers and restart them for you 
Any one manager can also be started / stopped if needed (but beware that watchdog may also need to be stopped if you don't want it to auto restart the stopped one !) 

In addition, the print queues can be displayed.

The following background managers are available; additional ones can be added, depending on the current installation of the application.

• SYSWDR  (Watchdog Config and Process - SYSWDR )
• MGRTSK (Outgoing messages Task Manager - MGRTSK)
• SWITSK (Manager for Incoming Messages -SWITSK)
• JOBTSK (JOBTSK - Job Task Manager )
• IMPTSK  (Manager for data import - IMPTSK  )
• MQITSK ( MQ Configuration in MGRTSK )
• PDXTSK (Currency Recalculation Task Manager - PDXTSK )
  
  Screenshot of SYSMGR