Skip the Portal Multiple log on Check screen

Dear Experts,

I have logged in to the SAP Netweaver portal adn through the Webdynpro application I am calling an another apllkication using the

'Create External Window' method using the URL of the calling application.

This is opening the calling application in a new tab as a new session. While opening the new session it is asking for the attached log on confirmation as 'This used is already logged in adn do you want to cancel the existing logins?'

How to skip this message??? Is that possible to do this with the Single sign on in the SAP Portal??

PFB the class & methods used to call the new application.

  lo_api_component     = wd_comp_controller->wd_get_api( ).

    lo_window_manager    = lo_api_component->get_window_manager( ).

    lo_window            = lo_window_manager->create_external_window(

      url                = lv_url

      modal              = abap_true

      has_menubar        = abap_true

      is_resizable       = abap_true

      has_scrollbars     = abap_true

      has_statusbar      = abap_true

      has_toolbar        = abap_true

      has_location       = abap_true ).

Kindly give your valuable suggestions to skip this confirmation while calling the new application?

Thanks in Advance,

Nalla B.