Communications Server uses this user property to create a bookmark when sending a package with the Attach Bookmark field checked.
For example, this user property is preset to Opportunity List View for the Opportunity business component. If a bookmark to an Opportunity record is attached to an email message that is generated by Communications Server, then clicking on that bookmark takes the recipient to the linked record in the Opportunity List View, if the recipient has that view in his or her responsibility. For more information about creating and using Siebel bookmarks, see Siebel Communications Server Administration Guide.
You can inactivate this user property or modify its value. You can create new instances of this user property, but do not create more than one instance for a business component.