If you have an existing setup with Sun Java System LDAP Schema 2 configured, enable the Access Manager Single Sign-on.
To enable Single Sign-on in Communications Express using Access Manager Single Sign-On, refer to the section Setting up Access Manager Single Sign-On in Chapter 4 of this guide.
If mail is enabled, Messenger Express should be installed and configured on the same host.
If Access Manager is enabled, Install Access Manager on the same machine as Communications Express, or install Access Manager SDK and configure it to point to the remote Access Manager.
To configure remote Access Manager SDK, refer to the steps mentioned under the procedure Setting up Access Manager Single Sign-On