In SU01, we assign user parameter.for ex bukrs =company code
what is the meaning of user parameter? when I do F1 and see the technical information, sometime there is parameter id for that field and sometime there is no parameter id.
why some fields have parameter id and some don't have? what purpose does it serves.
what I know is if we give parameter id in SU01, the value of that field be default automatically.
since I am not a abap consultant, please explain in such a way that I am able to understand.