Hi James,
CFTE Message types like ODTF_CCTR, ODTF_COBJ_INTERNAL_ORDER, FIN_DCFL_TV_PAY_CONF does not appear un BD21 menu.
What we did - just input ODTF_CCTR and hit Execute (or save a variant to schedule in background for periodic delta replication). For some of message types you'll have log within BD21 but the best way is to simply check BD87 for newly created IDOCs after BD21.
regards,
Anton