The use of BAPI_USER_LOCACTGROUPS_ASSIGN and BAPI_USER_LOCPROFILES_ASSIGN

Hi there,

I know we can call these two functions into a CUA master system to assign roles and profiles for users on different child systems. I also know that when using these two functions we can specify both the "SUBSYSTEM" and the role/profile name.

What I want to know is that if I can only specify "SUBSYSTEM" without the name of the role/profile. This is to create the user onto the child system without assigning any role/profile. My test shows that it is working I just want to know if this is the normal way of doing things.

I know when using transaction SU01 to manage user in a CUA environement, I can create user onto child systems without assigning any role/profile. I am just wondering if SU01 is using the trick that I mentioned above to achieve this.

Thanks heaps