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.
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