Execute Webdynpro application from ABAP with parameters

Hi all,

i created a new Webdynpro application and i need to execute it from a ABAP report but i need to pass some specifics parameters to my Webdynpro like customer number or executive date.

I searched the solution on SDN but nothing conclusive.

To execute my Webdynpro application from report ABAP i use the following code :

DATA : link TYPE string,

            lv_param TYPE string.

  CALL FUNCTION 'WDY_CONSTRUCT_URL'

   EXPORTING

*   PROTOCOL     =

*   INTERNALMODE = 'X'

     application  = 'ZMY_WD_APPLICATION' " Your application name

   IMPORTING

     out_url      = link. " here you will recive the url for application

*class for opening the application in browser

CALL METHOD cl_gui_frontend_services=>execute

   EXPORTING

     document  = link

     parameter = lv_param

   EXCEPTIONS

     OTHERS    = 1.

And it's work fine, but i would like to pass some parameters.

Thanks for your help.