Type: int
Indicates how the orders being booked and allocated by an AllocationInstruction or AllocationReport message are identified, e.g. by explicit definition in the OrdAllocGrp or ExecAllocGrp components, or not identified explicitly.
Added in protocol FIX.4.4
See in: FIX.4.4, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2.