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Date/Time: Tue, 14 May 2024 08:24:55 +0000



Post From: DTC Client - an overfill UpdateOrder call has occurred

[2017-02-28 18:44:30]
User60271 - Posts: 63
Hi,

I'm working on developing a DTC execution server to allow orders from an external order management system to be monitored using SC. The behaviour I'm seeing is that SC correctly processes the first few UpdateOrder messages it receives but after several fills SC starts showing the above message for each new UpdateOrder message received. Once this starts happening SC ignores the contents of the UpdateOrder message - ie does not update the order on the chart or record the trade.

If I disconnect and clear the Trade Activity log then reconnect SC starts handling the UpdateOrder messages correctly for the next few orders/fills again.

Some additional detail:

SC does not initiate the order so it just receives UpdateOrder messages.
The DTC server does not support positions and so sends SC a reject when SC requests a Trade Position.
The UpdateOrder message does not set the OpenOrClose flag as it is working with futures.
The OrderReceivedDateTime is set to the time of the last activity on the order rather than being constant from the first update.


1. Could you tell me what triggers the "Resetting last order modification Price and Quantity due to externally modified order or failed modification"
message as this seems to appear between the NEW message and the FILL message ? The are no external changes made to the order quantity or limit price for the orders that trigger these messages. The only change is that the OrderReceivedDateTime is updated with the fill.

2. Why does SC try to sync position when the DTC server rejects the position request as this seems to relate the the overfill error ?

Below is an example of the messages received :

Any insight into what may be amiss here would be appreciated.

Thanks.

"
ActivityType  DateTime  Symbol  OrderActionSource  InternalOrderID  ServiceOrderID  OrderType  Quantity  BuySell  Price  Price2  OrderStatus  FillPrice  FilledQuantity  TradeAccount  OpenClose  ParentInternalOrderID  PositionQuantity  FillExecutionServiceID  HighDuringPosition  LowDuringPosition
Fill  2017-02-28 13:15:13.734  ESH7  CMEGBX order update (Filled)  265  17  Limit  1  Sell  236175.0000000    Filled  236175.0000000  1  A1  Open    -1  34    
Order  2017-02-28 13:15:21.730  ESH7  Synchronized Internal Position to current Service Position. Current Position quantity: 0                Unspecified      A1            
Order  2017-02-28 13:17:46.138  ESH7  CMEGBX order update (New)  266  18  Limit  1  Sell  236225.0000000    Open      A1            
Order  2017-02-28 13:17:46.139  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  266  18  Limit  1  Sell  236225.0000000    Open      A1            
Order  2017-02-28 13:17:46.140  ESH7  CMEGBX order update (Filled)  266  18  Limit  1  Sell  236225.0000000    Filled  236225.0000000  1  A1            
Order  2017-02-28 13:17:46.141  ESH7  Updated Internal Position Quantity to -1. Previous: 0                Unspecified      A1            
Fill  2017-02-28 13:17:46.142  ESH7  CMEGBX order update (Filled)  266  18  Limit  1  Sell  236225.0000000    Filled  236225.0000000  1  A1  Open    -1  36    
Order  2017-02-28 13:17:54.149  ESH7  Synchronized Internal Position to current Service Position. Current Position quantity: 0                Unspecified      A1            
Order  2017-02-28 13:19:02.688  ESH7  CMEGBX order update (New)  267  19  Limit  1  Sell  236225.0000000    Open      A1            
Order  2017-02-28 13:19:02.689  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  267  19  Limit  1  Sell  236225.0000000    Open      A1            
Order  2017-02-28 13:19:02.690  ESH7  CMEGBX order update (Filled)  267  19  Limit  1  Sell  236225.0000000    Filled  236225.0000000  1  A1            
Order  2017-02-28 13:19:02.691  ESH7  Updated Internal Position Quantity to -1. Previous: 0                Unspecified      A1            
Fill  2017-02-28 13:19:02.692  ESH7  CMEGBX order update (Filled)  267  19  Limit  1  Sell  236225.0000000    Filled  236225.0000000  1  A1  Open    -1  38    
Order  2017-02-28 13:19:10.695  ESH7  Synchronized Internal Position to current Service Position. Current Position quantity: 0                Unspecified      A1            
Order  2017-02-28 13:19:18.713  ESH7  CMEGBX order update (New)  268  20  Limit  1  Sell  236250.0000000    Open      A1            
Order  2017-02-28 13:19:18.714  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  268  20  Limit  1  Sell  236250.0000000    Open      A1            
Order  2017-02-28 13:19:18.715  ESH7  CMEGBX order update (Filled)  268  20  Limit  1  Sell  236250.0000000    Filled  236250.0000000  1  A1            
Order  2017-02-28 13:19:18.716  ESH7  Updated Internal Position Quantity to -1. Previous: 0                Unspecified      A1            
Fill  2017-02-28 13:19:18.717  ESH7  CMEGBX order update (Filled)  268  20  Limit  1  Sell  236250.0000000    Filled  236250.0000000  1  A1  Open    -1  40    
Order  2017-02-28 13:19:26.712  ESH7  Synchronized Internal Position to current Service Position. Current Position quantity: 0                Unspecified      A1            
Order  2017-02-28 13:19:31.739  ESH7  CMEGBX order update (New)  269  21  Limit  1  Sell  236275.0000000    Open      A1            
Order  2017-02-28 13:19:31.740  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  269  21  Limit  1  Sell  236275.0000000    Open      A1            
Order  2017-02-28 13:19:31.741  ESH7  CMEGBX order update (Filled)  269  21  Limit  1  Sell  236275.0000000    Filled  236275.0000000  1  A1            
Order  2017-02-28 13:19:31.742  ESH7  Updated Internal Position Quantity to -1. Previous: 0                Unspecified      A1            
Fill  2017-02-28 13:19:31.743  ESH7  CMEGBX order update (Filled)  269  21  Limit  1  Sell  236275.0000000    Filled  236275.0000000  1  A1  Open    -1  42    
Order  2017-02-28 13:19:39.744  ESH7  Synchronized Internal Position to current Service Position. Current Position quantity: 0                Unspecified      A1            
Order  2017-02-28 13:20:10.811  ESH7  CMEGBX order update (New)  270  22  Limit  1  Buy  236225.0000000    Open      A1            
Order  2017-02-28 13:20:10.812  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  270  22  Limit  1  Buy  236225.0000000    Open      A1            
Order  2017-02-28 13:20:10.813  ESH7  CMEGBX order update (Filled)  270  22  Limit  1  Buy  236225.0000000    Filled  236225.0000000  1  A1            
Order  2017-02-28 13:20:10.814  ESH7  Updated Internal Position Quantity to 1. Previous: 0                Unspecified      A1            
Fill  2017-02-28 13:20:10.815  ESH7  CMEGBX order update (Filled)  270  22  Limit  1  Buy  236225.0000000    Filled  236225.0000000  1  A1  Open    1  44    
Order  2017-02-28 13:20:18.821  ESH7  Synchronized Internal Position to current Service Position. Current Position quantity: 0                Unspecified      A1            
Order  2017-02-28 13:20:25.345  ESH7  CMEGBX order update (New)  271  23  Limit  1  Buy  236225.0000000    Open  236375.0000000    A1            
Order  2017-02-28 13:20:25.346  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  271  23  Limit  1  Buy  236225.0000000    Open      A1            
Order  2017-02-28 13:20:25.347  ESH7  CMEGBX order update (Filled)  271  23  Limit  1  Buy  236225.0000000    Filled  236225.0000000  1  A1            
Order  2017-02-28 13:20:25.348  ESH7  Notice - An overfill UpdateOrder call has occurred. Overfill Quantity: 1. Total filled quantity: 1. Order quantity: 1  271  23  Limit  1  Buy  236225.0000000    Filled      A1            
Order  2017-02-28 13:20:40.875  ESH7  CMEGBX order update (New)  272  24  Limit  1  Buy  236200.0000000    Open  236375.0000000    A1            
Order  2017-02-28 13:20:40.876  ESH7  Resetting last order modification Price and Quantity due to externally modified order or failed modification.  272  24  Limit  1  Buy  236200.0000000    Open      A1            
Order  2017-02-28 13:20:40.877  ESH7  CMEGBX order update (Filled)  272  24  Limit  1  Buy  236200.0000000    Filled  236200.0000000  1  A1            
Order  2017-02-28 13:20:40.878  ESH7  Notice - An overfill UpdateOrder call has occurred. Overfill Quantity: 1. Total filled quantity: 1. Order quantity: 1  272  24  Limit  1  Buy  236200.0000000    Filled      A1

Date Time Of Last Edit: 2017-02-28 20:12:29