I am using eSignal EFS + NT DLL to auto trade my IB accounts. Because NT is only used as a bridge between EFS and IB TWS for order transmission purpose, I set NT only fed by IB TWS data. In EFS, when calling NT DLL functions, which symbol format should I use? Should I use IB's symbol format instead of getSymbol()? Currently when I trade CL N8 and NG M8, the instrument of orders are not mapped correctly ( CL N8 orders in EFS are eventually shown as a stock with CL in IB TWS and NG M8 is shown in NT as something starting with "HHxxx" and never shown in IB TWS. There is no problem when trading YM, NQ and ES. Can someone help me how to set instrument mapping correctly? Thanks.
- Clearpicks

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