<data priority="50">
    <xpath expr="//field[@name='partner_shipping_id']" position="after">
        <field string="Bestellnummer Kunde" name="ref"/>
    </xpath>
    <xpath expr="//group[@name='sale_info_group']/label[1]" position="replace"/>
    <xpath expr="//group[@name='sale_info_group']/field[@name='ref']" position="replace"/>
</data>
