[Windows PowerShell cmdlet] Get-OBNotification [Description] 
Gets the array of OBNotification objects for the server. The OBNotification object contains the following details regarding the notification. Category of notification Type of notification Time of generation of notification Error codes for long and short descriptions Error message parameters If a server is unregistered with the online backup service, the event log is not cleared. This can return notifications that are generated by a previous registration if a server is reregistered with the online backup server. However, if the Azure Backup Agent is uninstalled completely from the server the event logs are deleted.