Dear Cordero,
In order to meet your exact requirement,in the user profile check what roles has been assigned.
Now in all the roles check in T.Code PFCG which has the authorization for transaction code CS02.
Now here for the authorization object C_STUE_NOH,check what value has been set,ensure the value is
set for "NO".then check in CS02 whether is it displaying an error or a warning message.
Regards
Mangalraj.S