SHD0_F-48_Business Place and Section Code_Req Field

Dear

In SHD0, For t.codes F-48 when I tried to create Screen Variant (to make the business place and section code mandatory) system is giving error message "variants are possible only for dialog transactions". Advise me how to make business place and section code mandatory in t.code SHD0. I do not want to use validation here.

Regds