If desired by a subscriber, OpenYield will cancel the Limit Order for the RFO on the marketplace at the end of the firm window if there is any quantity unfilled at that time and the Limit Order is still on the market.
OpenYield signals the order cancellation with the Cancel ExecType (150=0):
8=FIX.4.4 9=344 35=8 34=496 49=OPENYIELD-RQ 52=20250214-21:28:40.002 56=BASTION-RQ 6=0 11=REQ-MUN-000H-CANCEL 14=0 17=RSP20250214-OD-000000000129 22=4 31=0 32=0 37=ORD20250214-OD-000000000035 38=100 39=4 41=REQ-MUN-000H 44=0 48=US023135CF19 54=2 55=US023135CF19 118=0 136=0 150=4 151=100 159=0 236=0 381=0 453=3 448=Bastion 452=3 448=BAST 452=4 448=OYLD 452=1 10=228