diff --git a/purchase_date_planned_update/__init__.py b/purchase_date_planned_update/__init__.py
new file mode 100644
index 0000000..861e30d
--- /dev/null
+++ b/purchase_date_planned_update/__init__.py
@@ -0,0 +1,4 @@
+# -*- coding: utf-8 -*-
+
+from . import purchase
+from . import wizard
diff --git a/purchase_date_planned_update/__openerp__.py b/purchase_date_planned_update/__openerp__.py
new file mode 100644
index 0000000..11c3372
--- /dev/null
+++ b/purchase_date_planned_update/__openerp__.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    Purchase Date Planned Update module for Odoo
+#    Copyright (C) 2015 Akretion (http://www.akretion.com)
+#    @author Alexis de Lattre <alexis.delattre@akretion.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+
+{
+    'name': 'Purchase Date Planned Update',
+    'version': '0.1',
+    'category': 'Purchase',
+    'license': 'AGPL-3',
+    'summary': "Update of date planned on PO line updates date on stock move",
+    'description': """
+Purchase Date Planned Update
+============================
+
+If you update the date planned on a PO line, the schedule date of the move line will be updated.
+
+Please contact Alexis de Lattre from Akretion <alexis.delattre@akretion.com> for any help or question about this module.
+    """,
+    'author': 'Akretion',
+    'website': 'http://www.akretion.com',
+    'depends': ['purchase'],
+    'data': [
+        'wizard/po_date_planned_update_view.xml',
+        'purchase_view.xml',
+        ],
+    'installable': True,
+}
diff --git a/purchase_date_planned_update/purchase.py b/purchase_date_planned_update/purchase.py
new file mode 100644
index 0000000..6c3ce8e
--- /dev/null
+++ b/purchase_date_planned_update/purchase.py
@@ -0,0 +1,53 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    Purchase Date Planned Update module for Odoo
+#    Copyright (C) 2015 Akretion (http://www.akretion.com)
+#    @author Alexis de Lattre <alexis.delattre@akretion.com>
+#    @author Sébastien Beau <sebastien.beau@akretion.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from openerp.osv import orm
+from openerp.tools.translate import _
+from openerp import SUPERUSER_ID
+
+
+class PurchaseOrderLine(orm.Model):
+    _inherit = 'purchase.order.line'
+
+    def write(self, cr, uid, ids, vals, context=None):
+        if vals.get('date_planned'):
+            if not isinstance(ids, list):
+                ids = [ids]
+            polines = self.browse(cr, uid, ids, context=context)
+            move_ids = []
+            for poline in polines:
+                # Add msg in chatter
+                poline.order_id.message_post(_(
+                    "Updated Scheduled Date of line <b>%s</b> from %s "
+                    "to <b>%s</b>"
+                    % (poline.name, poline.date_planned,
+                       vals['date_planned'])))
+                move_ids += [
+                    sm.id for sm in poline.move_ids if sm.state != 'done']
+            if move_ids:
+                # update related stock move
+                self.pool['stock.move'].write(cr, SUPERUSER_ID, move_ids, {
+                    'date_expected': vals['date_planned'],
+                    }, context=context)
+        return super(PurchaseOrderLine, self).write(
+            cr, uid, ids, vals, context=context)
diff --git a/purchase_date_planned_update/purchase_view.xml b/purchase_date_planned_update/purchase_view.xml
new file mode 100644
index 0000000..8506a65
--- /dev/null
+++ b/purchase_date_planned_update/purchase_view.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+   Copyright (C) 2015 Akretion (http://www.akretion.com/)
+   @author: Alexis de Lattre <alexis.delattre@akretion.com>
+   The licence is in the file __openerp__.py
+-->
+
+<openerp>
+<data>
+
+<record id="purchase_order_form" model="ir.ui.view">
+    <field name="name">usability.purchase.order.form</field>
+    <field name="model">purchase.order</field>
+    <field name="inherit_id" ref="purchase.purchase_order_form"/>
+    <field name="arch" type="xml">
+        <button name="purchase_cancel" position="after">
+            <button name="%(po_date_planned_update_action)d" type="action"
+                string="Update Scheduled Date"/>
+        </button>
+    </field>
+</record>
+
+
+</data>
+</openerp>
diff --git a/purchase_date_planned_update/wizard/__init__.py b/purchase_date_planned_update/wizard/__init__.py
new file mode 100644
index 0000000..18df482
--- /dev/null
+++ b/purchase_date_planned_update/wizard/__init__.py
@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+
+from . import po_date_planned_update
diff --git a/purchase_date_planned_update/wizard/po_date_planned_update.py b/purchase_date_planned_update/wizard/po_date_planned_update.py
new file mode 100644
index 0000000..0d13ca2
--- /dev/null
+++ b/purchase_date_planned_update/wizard/po_date_planned_update.py
@@ -0,0 +1,58 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    Purchase Date Planned Update module for Odoo
+#    Copyright (C) 2015 Akretion (http://www.akretion.com)
+#    @author Alexis de Lattre <alexis.delattre@akretion.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from openerp.osv import orm, fields
+from openerp.tools.translate import _
+
+
+class PoDatePlannedUpdate(orm.TransientModel):
+    _name = 'po.date.planned.update'
+    _description = 'Update Scheduled Date on PO'
+
+    _columns = {
+        'date_planned': fields.date('New Scheduled Date', required=True),
+        }
+
+    def run(self, cr, uid, ids, context=None):
+        if context is None:
+            context = {}
+        assert len(ids) == 1, '1 ID'
+        wiz = self.browse(cr, uid, ids[0], context=context)
+        assert context.get('active_model') == 'purchase.order',\
+            'wrong active model'
+        assert context.get('active_id'), 'Missing active_id in ctx'
+        today = fields.date.context_today(self, cr, uid, context=context)
+        if wiz.date_planned < today:
+            raise orm.except_orm(
+                _('Error'),
+                _("The new scheduled date should not be in the past !"))
+        polo = self.pool['purchase.order.line']
+        pol_ids = polo.search(cr, uid, [
+            ('order_id', '=', context['active_id'])], context=context)
+        if pol_ids:
+            polo.write(cr, uid, pol_ids, {
+                'date_planned': wiz.date_planned}, context=context)
+        else:
+            raise orm.except_orm(
+                _('Error'),
+                _("This PO doesn't have purchase order line"))
+        return True
diff --git a/purchase_date_planned_update/wizard/po_date_planned_update_view.xml b/purchase_date_planned_update/wizard/po_date_planned_update_view.xml
new file mode 100644
index 0000000..ad196ed
--- /dev/null
+++ b/purchase_date_planned_update/wizard/po_date_planned_update_view.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright (C) 2015 Akretion (http://www.akretion.com/)
+    @author: Alexis de Lattre <alexis.delattre@akretion.com>
+    The licence is in the file __openerp__.py
+-->
+
+<openerp>
+<data>
+
+<record id="po_date_planned_update_form" model="ir.ui.view">
+    <field name="name">po_date_planned_update_form</field>
+    <field name="model">po.date.planned.update</field>
+    <field name="arch" type="xml">
+        <form string="Update Scheduled Date" version="7.0">
+            <group name="main">
+                <label string="This wizard will update the Scheduled Date on all the lines of this purchase order" colspan="2"/>
+                <field name="date_planned"/>
+            </group>
+            <footer>
+                <button name="run" type="object" string="Update"
+                    class="oe_highlight"/>
+                <button special="cancel" string="Cancel" class="oe_link"/>
+            </footer>
+        </form>
+    </field>
+</record>
+
+<record id="po_date_planned_update_action" model="ir.actions.act_window">
+    <field name="name">Update Scheduled Date</field>
+    <field name="res_model">po.date.planned.update</field>
+    <field name="view_mode">form</field>
+    <field name="target">new</field>
+</record>
+
+</data>
+</openerp>