When Preconfiguring Oracle Unified Directory (OUD) for OIM and OAM 11gR2 Integration the first step say to add OUD Containers using ldapadd command.
http://docs.oracle.com/cd/E27559_01/install.1112/e27301/preconfigoud.htm#CHDCEJKD
ldapadd -h testserver
But ldapadd command is not available in OUD 11gR2 , so the same can be loaded using ldapmodify using a special flag. (--defaultAdd)
ldapmodify
ldapadd command is available in OID not in OUD. So this is a documentation bug.