<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="Invoice" type="invoiceType"/>
  <xs:complexType name="invoiceType">
    <xs:sequence>
    <xs:element name="Invoiceno" type="xs:string" minOccurs="0"/>
    <xs:element name="OrderNo" type="xs:string" minOccurs="0"/>
    <xs:element name="InvoiceDate" type="xs:dateTime" minOccurs="0"/>
    <xs:element name="SubTotal" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="GST" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="Total" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="Customer" type="customerType" minOccurs="0" maxOccurs="1"/>
    <xs:element name="Supplier" type="customerType" minOccurs="0" maxOccurs="1"/>   
    <xs:element name="InvoiceLine" type="amountType" minOccurs="0" maxOccurs="unbounded"/>
    </xs:sequence>
  </xs:complexType>
  <xs:complexType name="amountType">
    <xs:sequence>
    <xs:element name="ItemCode" type="xs:string" minOccurs="0"/>
    <xs:element name="ItemDescription" type="xs:string" minOccurs="0"/>
    <xs:element name="Quantity" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="Price" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="SubTotal" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="GST" type="Decimal4dp" minOccurs="0"/>
    <xs:element name="Total" type="Decimal4dp" minOccurs="0"/>
    </xs:sequence>
  </xs:complexType>
  <xs:complexType name="customerType">
    <xs:sequence>
    <xs:element name="Code" type="xs:string" minOccurs="0"/>
    <xs:element name="Name" type="xs:string" minOccurs="0"/>
    <xs:element name="Add" type="xs:string" minOccurs="0"/>
    <xs:element name="Add1" type="xs:string" minOccurs="0"/>
    <xs:element name="Add2" type="xs:string" minOccurs="0"/>
    <xs:element name="CoEmail" type="xs:string" minOccurs="0"/>
  </xs:sequence>
  </xs:complexType>
  <xs:simpleType name="Decimal2dp">
    <xs:restriction base="xs:decimal">
      <xs:fractionDigits value="2" />
    </xs:restriction>
  </xs:simpleType>
  <xs:simpleType name="Decimal4dp">
    <xs:restriction base="xs:decimal">
      <xs:fractionDigits value="4" />
    </xs:restriction>
  </xs:simpleType>
</xs:schema>