The Purge Scheduler screen controls when the Database Purger runs. The Database Purger is
made up of several purge modules that each purge a certain kind of data. The Database
Purger runs within global purge window controlled by the Purge Time Window system
parameter: "Start purge during this time period " (Database | Advanced). The time
windows for each individual purge module can be controlled in the Purge Scheduler
screen.
Note: No purge module will run outside of the global purge time window,
regardless of the schedule settings.