Type: String
Unique identifier for Order as assigned by institution (identified by SenderCompID or OnBehalfOfCompID as appropriate). Uniqueness must be guaranteed within a single trading day. Firms, particularly those which electronically submit multi-day orders, trade globally or throughout market close periods,should ensure uniqueness across days, for example by embedding a date within the ClOrdID (11) field.
Added in protocol FIX.2.7
See in: FIX.4.0, FIX.4.1, FIX.4.3, FIX.4.4, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240.