Screen flow not working

Hi Experts,

I have a screen 9000 from which I want to display a "list output". I have set a pf-status for 9000.

In PAI of 9000 I written like

leave TO LIST-PROCESSING AND RETURN TO SCREEN 9000.

write : / 'hai'.

leave screen.

The list output comes correctly, but when I press Back button it didn't go to 9000 screen. Moreover in the status bar I am able to see the fuction code of 9000's Back button. But 9000's PAI also don't get triggered. How can I handle this situation. Can I handle user command of list processing screen.

Thanks and regards,

Venkat.