extra_data_dikasa/views/sale_order.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
  <data>
    <record model="ir.ui.view" id="dikasa_sale_form">
       <field name="name">dikasa_sale_form</field>
       <field name="model">sale.order</field>
       <field name="inherit_id" ref="sale.view_order_form"/>
       <field name="arch" type="xml">
         <field name="partner_id" position="replace">
           <field name="partner_id" domain="[('customer','=',True)]" options='{"always_reload": True}'/>
         </field>
         <field name="partner_id" position="after">
            <field name="ruc"/>
            <field name="street"/>
            <field name="state_id"/>
            <field name="country_id"/>
            <field name="email"/>
            <field name="phone"/>
            <field name="mobile"/>
            <field name="credit_limit"/>
         </field>
         <field name="user_id" position="attributes">
            <attribute name="string">Vendedor</attribute>
            <attribute name="readonly">True</attribute>
         </field>
         <field name="user_id" position="after">
            <field name="create_uid" readonly="1"/>
         </field>

         <field name="note" position="before">
           <group>
             <field name="total_weight" class='oe_inline'/>%%
           </group>
         </field>
      </field>
    </record>

    <record model="ir.ui.view" id="dikasa_sale_form2">
       <field name="name">dikasa_sale_form2</field>
       <field name="model">sale.order</field>
       <field name="inherit_id" ref="sale_stock.view_order_form_inherit"/>
       <field name="arch" type="xml">
         <field name="incoterm" position="attributes">
           <attribute name="invisible">True</attribute>
         </field>
      </field>
    </record>

</data>
</openerp>