<xs:simpleType name="OrderID_t">
<xs:annotation>
<xs:documentation>
Unique identifier for Order as assigned by sell-side (broker, exchange, ECN). 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.
</xs:documentation>
<xs:appinfo>
<fm:Xref Protocol="FIX" name="OrderID" ComponentType="Field" Tag="37" Type="String" AbbrName="OrdID" xmlns:fm="http://www.fixprotocol.org/FIXML-5-0-SP2/METADATA" />
</xs:appinfo>
</xs:annotation>
<xs:restriction base="xs:string" />
</xs:simpleType>
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