- State is Scheduled or Implement
- Change Request current time is between the "planned start date" and "planned end date", or between the "actual start date" and "actual end date"
When a child CI is put into maintenance, the parent CI switches to maintenance as well, therefore, for CIs such as a Business Service, the maintenance field will alternate from true to false or false to true more often.
If an alert is not associated with a CI, or the associated CI is not in "In Maintenance" state, the "maintenance" flag on the alert is unchecked during the whole event processing.
This behaviour is by design. More information can be found in the documentation pages below: