When you enable event collapsing in AppManager, AppManager forwards duplicate events as a single event to Netcool. Netcool displays each subsequent occurrence as a single occurrence of the same event. The subsequent events have the same identification number as the original event and are displayed with time-stamps of their occurrences.
Whenever the parent event in AppManager generates a child event, the event displays as New in the Netcool console.
AppManager events, by default, are displayed in an ascending order (parent event, followed by child events that display the most recent event first). Depending on your configuration, Netcool alerts display corresponding child events in descending order, beginning with older child events followed by newer child events.
You can also set other options in AppManager, which then affect how events are displayed in Netcool. For example, you can set AppManager to automatically close events if an event condition does not exist.
For more information on event collapsing and automatically closing events, see the Administrator Guide for AppManager.