Reference user in su01

Reference user...... in real time we use rarely but in interviews frequently :) so let us dig into reference user.

As we know that there are 5 user types ,Reference user is one of them and we can't log on with reference user id

 Using this  we can assign more privileges to  reference user id  from  dialogue user .

USE:

1.reference user used in particular scenarios like internet users, whenever key users on vacations............ etc.

2. If you want to assign more than 312 profiles to user ,then also we can use reference user.

 Assigning reference user to dialogue user id

 Assume.. that we have a reference user RF_USER  dialogue user DG_USER.

DG_USER have z_      role

 RF_USER have z_      role

This assignment is valid for all child systems in CUA.

You should be very cautious when creating reference users.
        

§         If you do not implement the reference user concept, you can deactivate this field in accordance with SAP Note 330067.

§         We also recommend that you set the value for the Customizing switch REF_USER_CHECK in table PRGN_CUST to "E". This means that only users of type REFERENCE can then be assigned. Changing the Customizing switch affects only new assignments of reference users. Existing assignments are retained.

§         We further recommend that you place all reference users in one particularly secure user group to protect them from changes to assigned authorizations and deletion.

-->useful note SAP Note 330067.