In "USER MAINTENANCE- SU01" --> in the "logon tab" there are 5 different
"user type"
1. dialog 2. system 3. communication 4. service 5. reference
Kindly mention the function and role of all the above mentioned user types
specifically and hows is one user type different from another.
These are as follows:-
1. Dialogue:-
For this kind of users:-
GUI login is possible.
Initial password and expiration of passowrd are checked.
Multi GUI logins are checked.
Usage:- These are used for GUI logins.
2. System
For this kind of users:-
GUI login is not possible.
Initial password and expiration of passowrd are not checked.
Usage:- These are used for internal use in system like background jobs.
3. Communication
For this kind of users:-
GUI login is not possible.
Users are allowed to change password through some software in middle tier.
Usage:- These are used for login to system through external systems like web
application
4. Service
For this kind of users:-
GUI login is possible.
Initial password and expiration of passowrd are not checked.
Multiple logins are allowed.
Users are not allowed to change the password. Only admin can change the
password
Usage:- These are used for anonymous users. This type of users should be given
minimum authorization.
5. Reference
For this kind of users:-
GUI login is not ible.
Initial password and expiration of passowrd are not checked.
Usage:- These are special kind of users which are used to give authorization
to other users.
What are the functions of DDIC user in Production system?
There are many functions of DDIC user.
For E.g.. When you configure TMS you won't be able to configure it using
sap*. For this you need a user who has access to Data dictionary and ABAP
repository Object like DDIC user or user with sap_all and sap_new permission.
2) When we install R/3 in Landscape then we need to configure TMS. With the
help of default user DDIC we can configure s_trnsprt and s_cts_admin. We cannot
create new user for our client( Client of Company ) as creating new user gets
charged.
