Posted: Sep 02, 2014 @ 05:40 AM             Msg. 1 of 3

The FIX order server is rejecting a change of a limit order to a market order. Error message is "Unsupported change. Field: Type".

Shouldn't the server allow limit orders to be changed to market orders?

Thanks,
Michael.

---

Michael Hall

Posted: Sep 02, 2014 @ 08:47 AM             Msg. 2 of 3

Hi Michael,

No, we do not support order type modifications.

---

Vitaliy Pfau

Posted: Sep 02, 2014 @ 09:35 AM             Msg. 3 of 3

Hi Vitaliy,

Thank you for the clarification.

I think you should update the FIX documentation (dated August 08, 2013) as on page 33 it shows an example of a Limit order being successfully replaced by a market order.

The example is titled : Multi-leg Futures with Replace

Here are the relevant messages from the example.
vic 138 NewOrderSingle
Account: VIC05, ClOrdID: 635114266629771870, OrderQty: 10, OrdType: LIMIT, Price:
-10000, Side: BUY, Symbol: ES FTS -U3,+Z3, TransactTime: 20130806-22:57:42,
CFICode: FMXXXN

vic 139 OrderCancelReplaceRequest
Account: VIC05, ClOrdID: 635114266633047870, OrderQty: 1, OrdType: MARKET,
OrigClOrdID: 635114266629771870, Side: BUY, Symbol: ES FTS -U3,+Z3,
TransactTime: 20130806-22:57:43, CFICode: FMXXXN

OEC_TEST 138 ExecutionReport
Account: VIC05, AvgPx: 0.00, ClOrdID: 635114266633047870, CumQty: 0, ExecID:
OECFIX:635114265775047870:3, OrderID: 2014876, OrderQty: 1, OrdStatus: NEW,
OrigClOrdID: 635114266629771870, Side: BUY, Symbol: ES FTS -U3,+Z3,
TransactTime: 20130806-22:57:43, ExecType: REPLACED, LeavesQty: 1,
SecondaryOrderID: 2014877, MultiLegReportingType: MULTILEG, CFICode:
FMXXXN

---

Michael Hall