I know that Portlet-A will be having different PortletSession then that of Portlet-B, even though both are in same portal page. Here I need a session for a client to store some thing from Portlet-A's PortletSession and the same can be retrieved by Portlet-B's PortletSession. I can't keep/share in ApplicationScope as it is available to entire application/ALL users. I want the data to be available only for that logged in user. So do we have some thing like HttpSession which is unique for each logged in user and can be shared by all portlets with in that unique session.