When attempting to import an Active Directory or LDAP OU, you receive an error, invalid XML character.  

scm-server-0.log:
2016-03-09 07:34:12.017 THREAD 78 SEVERE: org.w3c.dom.ls.LSException: The
character '' is an invalid XML character

ADSITask-0.log
2016-03-09 07:34:12.036 THREAD 78 WARNING: ADSITask>> syncAdTreeGroup:
Error->
LDAP query error! error code=65(0x41), error msg=LDAP XML Saving Failed
[file=D:\Program Files (x86)\Symantec\Symantec Endpoint Protection
Manager\data\1457537638356.stage.xml]

ImportADSI-0.log:
2016-03-09 07:34:59.125 THREAD 73 SEVERE: LdapUtils>> lookupDn: Exception
occurs
while searching... Message: [LDAP: error code 10 - 0000202B: RefErr:
DSID-0310082F, data 0, 1 access points
    ref 1: 'corp'  [NUL] ]

This issue is fixed in Symantec Endpoint Protection 14.0. For information on how to obtain the latest build of Symantec Endpoint Protection, see Download the latest version of Symantec Endpoint Protection.