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After upgrading to System Center 2012 Configuration Manager Service Pack 1 or System Center 2012 R2 Configuration Manager, you may discover that the 'Add' and 'Remove' buttons for the Conditions in the Alerts tab of a device collection are grayed out, thus no new conditions can be created or existing conditions removed or modified.
This can occur if the CAS, the primary site and any secondary sites are not yet upgraded as well. Until the CAS, the primary site and any secondary sites are all upgraded, the setting in the Alert tab cannot be changed. This is by design.
NOTE When the Mode value of the WMI class SMS_Site is non-zero, editing of the Alerts tab of Device Collections will be disabled. This class is located in the WMI namespace root\sms\site_<sitecode>. Possible values in this field range from 0-7, with 0 being a site that is in the status of 'Normal'.
SiteStatus = 1 is the CAS or the site is in maintenance mode.
SiteStatus = 2 means the site is in recovery.
SiteStatus = 3 means the site is upgrading.
SiteStatus = 4 means the site is running an Evaluation license that has expired.
SiteStatus = 5 means the site is in expansion mode (attaching the primary to a new CAS).
SiteStatus = 6 or 7 means not all of the sites (CAS, primaries or secondaries) have been upgraded.
Larry Mosley | Senior Escalation Engineer | Microsoft GBS Management and Security Division
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