Updating Alert Center items 
When a device aspect goes out of threshold, it appears as an item in a threshold workspace report on the Alert Center Home page. 
To update an item:
- In a threshold workspace report, click on a device name. The Item Details dialog appears. 
 
- Under the Update Items list, select how you would like to update the item(s). - Acknowledged items are being dealt with. Notifications will continue to be sent. Acknowledged items still appear in the threshold workspace report.
- Resolved items have been dealt with completely and are removed from the threshold workspace report.
 
- Next, select the item(s) to which you would like to apply the update.Select either: - to apply the update to this specific item.
-  to apply the update to any matching items that were created during the same poll.
-  to apply the update to any item older than the hour value you specify.
-  to update any items currently existing for this threshold.
 
- After selecting the appropriate update, enter a brief  that explains what was done to take care of the problem.: It is not required that you enter an explanatory comment, though we suggest that you do so for record-keeping purposes. 
- Click to save changes.
: Items that have been acknowledged display a green check mark  next to their name on Alert Center Home threshold workspace reports.
 next to their name on Alert Center Home threshold workspace reports.