Configuring the Anonymous User
The anonymous user is a Siebel user with very limited access. The anonymous user (defined in the Siebel database) allows a user to access a login page or a page containing a login form. For LDAP authentication, the anonymous user must have a corresponding record in the user directory.
The anonymous user is required even if your applications do not allow access by unregistered users. When an Application Object Manager thread first starts up, it uses the anonymous user account to connect to the database and retrieve information (such as a license key) before presenting the login page.