stock_picking_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  product customer code picking for OpenERP
  Copyright (C) 2013 Agile Business Group sagl (<http://www.agilebg.com>).
    Authors, Nicola Malcontenti, nicola.malcontenti@agilebg.com
  The licence is in the file __openerp__.py
-->
<openerp>
    <data>

        <record id="view_move_picking_tree" model="ir.ui.view">
            <field name="name">stock.move.product.code.tree</field>
            <field name="model">stock.move</field>
            <field name="inherit_id" ref="stock.view_move_picking_tree"/>
            <field eval="16" name="priority"/>
            <field name="arch" type="xml">
                <field name="product_id" position="after">
                    <field name="product_customer_code" />
                </field>
            </field>
        </record>

        <record id="view_move_picking_form" model="ir.ui.view">
            <field name="name">stock.move.product.code.form</field>
            <field name="model">stock.move</field>
            <field name="inherit_id" ref="stock.view_move_picking_form"/>
            <field eval="16" name="priority"/>
            <field name="arch" type="xml">
                <field name="product_id" position="after">
                    <field name="product_customer_code" />
                </field>
            </field>
        </record>

    </data>
</openerp>