User Administration 

The administration of ICF users in SAP systems is performed using the general SAP user administration functions (transaction SU01).

User Types

In principle, ICF users can have any user type (system user, dialog user, individual user, composite user).

For security reasons, use only system users for ICF communications, if possible, to avoid accessing dialog processes. However, depending on the application, you may need to set up dialog type ICF users.