<xs:elementname="HEAD"minOccurs="1"maxOccurs="1"xmlns:xs="http://www.w3.org/2001/XMLSchema"><xs:annotation><xs:documentationxml:lang="de">Kopfteil der Rechnung (INVOIC) </xs:documentation><xs:documentationxml:lang="en">Head of the invoice (INVOIC) </xs:documentation></xs:annotation><xs:complexType><xs:complexContent><xs:extensionbase="DocumentHead"><xs:sequence><xs:elementname="OrderNumberRef"type="OrderNumber"minOccurs="1"/><xs:elementname="OrderType"type="OrderType"minOccurs="0"/><xs:elementname="Commission"type="Commission"minOccurs="0"/><xs:elementname="DespatchAdviceNumberRef"type="DespatchAdviceNumber"minOccurs="0"/><xs:elementname="OrderResponseRef"type="OrderResponseNumber"minOccurs="0"/><xs:elementname="PrevInvoiceRef"type="PrevInvoice"minOccurs="0"/><xs:elementname="ActuallyDeliveryDate"type="ActualDeliveryDate"minOccurs="0"/><xs:elementname="ValueDate"type="ValueDate"minOccurs="0"/><xs:elementname="DueDate"type="DueDate"minOccurs="0"/><xs:elementname="CashDiscount"type="CashDiscount"minOccurs="0"maxOccurs="5"/><xs:elementname="BarcodeNumber"type="BarcodeNumber"minOccurs="0"/><xs:elementname="HTXT"type="HTXT"minOccurs="0"maxOccurs="1"/><xs:elementname="NAD"type="NAD"minOccurs="1"maxOccurs="99999"/></xs:sequence></xs:extension></xs:complexContent></xs:complexType></xs:element>