TagField NameData TypeUnion DatatypeDescriptionAddedDepr.Enums from tag
37OrderIDString

Unique identifier for Order as assigned by broker. Uniqueness must be guaranteed within a single trading day. Firms which accept multi-day orders should consider embedding a date within the OrderID field to assure uniqueness across days.



Added  FIX.2.7

Used in messages:
[Allocation] [DontKnowTrade] [Email] [ExecutionReport] [MarketDataIncrementalRefresh] [MarketDataSnapshotFullRefresh] [OrderCancelReject] [OrderCancelReplaceRequest] [OrderCancelRequest] [OrderStatusRequest]