Unable to Load Users to Group with LoadFromFile

10.1 M040

I am trying to load EnterpriseLDAP users to an existing Org level group.  The group DN is "cn=steelcase external,cn=public,o=steelcase
inc.,ou=people,cn=administrativeldap,cn=windchill_9.1,o=steelcase inc." and am using the command UserGroup.  However I keep getting the below error.  How can I get UserGroup to search higher up the tree in the local LDAP?

2015-09-22 08:20:18,284 INFO  [RMI TCP
Connection(342)-10.80.96.61] wt.system.out wcadmin - Error detected in
createUserGroup <ABURGESS/Steelcase External>

2015-09-22 08:20:18,285 ERROR [RMI TCP
Connection(342)-10.80.96.61] wt.org.LoadPrincipal wcadmin -

1. wt.util.WTException: No principal was found for the dn:
   cn=Steelcase
   External,ou=people,cn=AdministrativeLdap,cn=Windchill_9.1,o=Steelcase Inc.

              
at wt.org.LoadPrincipal.validatePrincipalFoundByDN(LoadPrincipal.java:1254)

              
at wt.org.LoadPrincipal.addMemberByDN(LoadPrincipal.java:1245)