Hi Srikanth,
Z tcodes r customized via tcode SE93. U enter ur z tcode and select the button "create", enter short description.
Select program and selection screen (report transaction) then press enter.
Enter ur program in the create report trasaction screen.
We generally use this area menu's to add our own Z reports under the standard menu path of the Std reports in SPRO
we create our report and attach a tcode
then first find out the Std area menu of the STd report under which you wants to keep.
goto SE43 Tcode
enter that Area menu and in that you can add your z report tcode
so that it will be displayed under that menu.
Reward points pls.
Regards,
Govind.