Case Flags History Tracking Action Field Details
The Action field on the Case Flags History Tracking object describes the action that triggered the creation of the record. This field is available in version 4.20 and greater.
The following table describes the potential values for the Action field and the reasons they are logged.
If multiple items apply within an execution thread, the first event is logged. For example, you have configured the 'Clear flag on outbound email' and 'Clear flag on user comment' option on the wizard and have a Visualforce page that inserts a comment and sends an email at the same time. The Visualforce page controller inserts the comment and then sends the email. When you use this page, the history tracking record will reflect an action of 'Internal Comment Added'.