If you have questions or are troubleshooting issues with using Active Directory/LDAP with App Center, you may want to check out the Enterprise Support Solution document. Enterprise Support Solution topics compile all of the content that you need to learn about, use, and troubleshoot a specific Symantec App Center feature in one convenient place. It provides abstracts so you know what the content contains and it provides links to the content.
http://www.symantec.com/docs/HOWTO84950