You must display alerts that were previously hidden before you can unhide them.
You can select and unhide alerts that were previously hidden. When you unhide an alert, it is displayed again and the severity indicator associated with it is displayed as a filled square.
- In the Alerts view, tap the row of the alert you want to unhide.
- In the Alerts Details view, tap Actions and select Unhide Alert. The alert displays in its normal active state again in the summary view and the severity indicator associated with it is displayed as a filled square.