<xs:simpleType name="BillingCategory" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:annotation>
    <xs:appinfo />
    <xs:documentation>&lt;summary&gt;Indicates the disposition of payment for the drop.&lt;/summary&gt;
            &lt;remarks&gt;The system does not make a distinction between the three non-paid classifications.  They are named differently only for display purposes.&lt;/remarks&gt;</xs:documentation>
  </xs:annotation>
  <xs:restriction base="xs:string">
    <xs:enumeration value="PaidFor">
      <xs:annotation>
        <xs:documentation>&lt;summary&gt;Indicates the drop is paid for.&lt;/summary&gt;</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ValueAdd">
      <xs:annotation>
        <xs:documentation>&lt;summary&gt;The drop is not paid for.&lt;/summary&gt;</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="MakeGood">
      <xs:annotation>
        <xs:documentation>&lt;summary&gt;The drop is not paid for.&lt;/summary&gt;</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="Remnant">
      <xs:annotation>
        <xs:documentation>&lt;summary&gt;The drop is not paid for.&lt;/summary&gt;</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="TBD" />
    <xs:enumeration value="Barter" />
    <xs:enumeration value="Promo" />
    <xs:enumeration value="NonBillable" />
    <xs:enumeration value="BillableNonEarned" />
  </xs:restriction>
</xs:simpleType>