When configuring a trigger, you can use the is not equal to trigger comparison to tell a trigger to act only if the new event’s attribute values are not equal to the specified values. For example, the following trigger initiates a work item only if the value of the Business Service Name attribute on the new event is not equal to Email Business Service:
When you use the is not equal to trigger comparison, the trigger ignores empty values in the following event attributes:
Business Service ID
Business Service Name
Business Service Role
Computer ID
Computer Name
Knowledge
Resource Group ID
Resource Group Name
For example, if the Business Service Name attribute in the previous graphic has an empty value, the trigger ignores the event and does not initiate a work item, even though the empty value is not equal to the specified comparison value.
To configure a trigger to initiate work items for events with empty values that do not equal the specified comparison values, create a named event and associate it with the trigger. The following example specifies a named event that matches AppManager events with Business Service Name values not equal to Email Business Service, including empty values:
Where empty represents any text string you do not use when naming your business services.
For more information about named events, see Understanding Named Events.