Options trading on IBKR

Hi,

I am trying to trade options with IBKR. I also have options market data feed with dxfeed - I have contacted them for the same issue.

It seems my orders are always refused by TWS. I get the following errors:

  • with only a IBKR TWS connection:
    No security definition has been found for the request affected Order

  • when I have my dxfeed also connected that has the quotes:
    Error validating request.-‘bF’ : cause - Please enter a valid security type affected Order

Thanks for your help! I really hope this can work.