<xsd:simpleType name="StaffingActionReasonCodes">
    <xsd:restriction base="xsd:string">
        <xsd:enumeration value="Acknowledgement" />
        <xsd:enumeration value="Confirmation" />
        <xsd:enumeration value="Contract Extension" />
        <xsd:enumeration value="Contract Modification" />
        <xsd:enumeration value="Contract Expiration" />
        <xsd:enumeration value="Assignment Extension" />
        <xsd:enumeration value="Assignment Modification" />
        <xsd:enumeration value="Modification" />
        <xsd:enumeration value="Request" />
        <xsd:enumeration value="Cancelled" />
    </xsd:restriction>
</xsd:simpleType>