Out of curiosity,
aren't the CO/BO SL legs injected at the time of the trade in the Exchange servers trade book ?
If yes, then the risk is only with BO, bcos once one leg is triggered the other has to be cancelled and if the OMS can't do that there is a problem (big)
So what is the risk with CO orders if intraday are being enabled ?
bcos even intraday orders have to squared-off by the OMS and in the last 20m if there is no connectivity it's the same problem.
Context is not intraday volatility ( when certain types or orders are blocked ) but rather connectivity.