Addon Account

[NinjaTrader_ChelseaB]

Hello explorer101,

The states you have correct for a change request; ChangePending, ChangeSubmitted, Accepted, Working.

https://ninjatrader.com/support/helpGuides/nt8/en-us/order.htm

Yes, if the exchange executes a fill before receiving change request this is an in-flight-execution. The change will be ignored by the exchange, an error message sent back for the order ('Unable to change order'), and the order will remain in a part filled or filled state (whatever its previous state was).

This could disable the script because of the error, depending on what the RealtimeErrorHandling is set to.

[explorer101]

Hello,
i am using the Addon Account methods - and specifically Change method to submit change to the entry order for either the price or quantity
Before doing so i check to see if any Fills have arrived.
What states will happen to this change -
CHANGEPENDING
CHANGESUBMITTED
ACCEPTED
WORKING

Also what happens in instance when Fills or partial fill for entry arrive before the Change Submitted is received by exchange
is this rejected by exhange or ignored? or is this one of these instances where it is rare occurence like in flight executions as described in risks to execution page in help?

thanks