Not able to access T code /BOBF/CUST_UI

Hi Experts,

Apologies for asking such a silly question at the forum, but did not find any other option to understand, hence posting my query.

When tried to execute T code, "/BOBF/CUST_UI, getting message stating that "Function is not possible", where as if I try executing this using SE93 it works.

Request your help in understanding how to execute this t code, are there any roles required or there is a different way in which we execute this t code.

Thanks in advance.

Mounesh