You can also choose
to send an acknowledgement Notification (‘Ack Notification’) from within the
modal window, which if checked, will send a Notification to the appropriate Users
(i.e. those who are set up to be notified about the given Host/Service Checks).
acknowledgement means that only when the Host or Service Check returns to an
‘UP’ or ‘OK’ state will the acknowledgement be cleared. This is great for when
there is a Host flapping between a warning state (i.e. I'm too busy!) and a
CRITICAL state (i.e. I'm REALLY too busy!).”