In case of invoke a navigation in a Task Flow and the navigation is based on a Navigation Model of WebCenter Portal then an extra activity has to be included in the Task Flow.
This activity is of type parentAction and it forces WebCenter Portal to refresh and update the information related to Navigation Context.
Content Presenter includes OOTB the parentAction activity
Which configuration should have the parentAction?
The parentAction activity has to be configured as following in the Task Flow:
<parent-action id="wcnav_parentAction">
<root-outcome>wcnav_outcome</root-outcome>
</parent-action>
It will invoke the wcnav_outcome activity of the Root in order to update the Navigation Context
What happens if isn't it included?
Unexpected behaviour as blank popups or Navigation Context not align with the current view.
Reference: http://docs.oracle.com/cd/E29542_01/webcenter.1111/e27739/jpsdg_navigation.htm#BEHJBGBB
