OrderUpdateEvent

Order lifecycle update event.

Field	Type	Required	Nullable	Default	Description
EventId	UUID	No	No		Stable unique identifier for this event instance.
EventSeqId	int	No	No		Server-assigned event sequence id used for ordering and replay/history APIs.
EventTime	datetime	Yes	No		UTC timestamp when the event occurred on the server.
OrderId	int	Yes	No		Live order id.
BrokerAccountId	str	No	Yes		Broker account id the order belongs to (may be null in some contexts).
ExecPlanId	int	No	Yes		Live execution plan id this order belongs to (if known).
LegGroupId	int	No	Yes		Leg group id within the execution plan (if known).
StrategyId	int	Yes	No		Live strategy id this order is associated with.
StrategyName	str	Yes	No		Strategy name at the time of the event.
State	OrderState	Yes	No		Current order state.
FilledQty	Decimal	Yes	Yes		Quantity filled so far (if available).
RemainingQty	Decimal	Yes	Yes		Remaining quantity (if available).
FillPrice	Decimal	Yes	Yes		Last fill price (if available).
AvgFillPrice	Decimal	Yes	Yes		Average fill price across all fills (if available).
Rejection	OrderRejectionInfo	No	Yes		Rejection details when the order is rejected.