diff --git a/tko_coexiste_br_account/models/account_invoice.py b/tko_coexiste_br_account/models/account_invoice.py
index 5863fc7..f6f8970 100644
--- a/tko_coexiste_br_account/models/account_invoice.py
+++ b/tko_coexiste_br_account/models/account_invoice.py
@@ -261,8 +261,9 @@ def write(self, vals):
                 due_date = datetime.datetime.strptime(due_date, OE_DFORMAT).date()
                 for move_line in record.move_id.line_ids:
                     move_line.date_maturity = due_date
+            super(AccountInvoice, record).write(vals)
             record.draft_invoice_validate()
-        return super(AccountInvoice, self).write(vals)
+        return True
 
 
 class AccountInvoiceLine(models.Model):
diff --git a/tko_purchase_requisition/__init__.py b/tko_purchase_requisition/__init__.py
new file mode 100644
index 0000000..bd8f392
--- /dev/null
+++ b/tko_purchase_requisition/__init__.py
@@ -0,0 +1,26 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    ThinkOpen Solutions Brasil
+#    Copyright (C) Thinkopen Solutions <http://www.tkobr.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/>.
+#
+##############################################################################
+
+import purchase_requisition
+import wizard
diff --git a/tko_purchase_requisition/__manifest__.py b/tko_purchase_requisition/__manifest__.py
new file mode 100644
index 0000000..b50d78c
--- /dev/null
+++ b/tko_purchase_requisition/__manifest__.py
@@ -0,0 +1,50 @@
+        # -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    ThinkOpen Solutions Brasil
+#    Copyright (C) Thinkopen Solutions <http://www.tkobr.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': 'Merge Purchase Requisition Orders',
+    'version': '10.0.0.0.0',
+    'category': 'Customizations',
+    'sequence': 14,
+    'complexity': 'medium',
+    'description': ''' == This module allows to merge Requisition Orders in Draft Stage ==\n
+''',
+    'author': 'ThinkOpen Solutions Brasil',
+    'website': 'http://www.tkobr.com',
+    'depends': [
+        'purchase_requisition',
+    ],
+    'data': [
+        'purchase_requisition_view.xml',
+        'wizard/purchase_requisition_wizard_view.xml',
+    ],
+    'init': [],
+    'demo': [],
+    'update': [],
+    'test': [],  # YAML files with tests
+    'installable': True,
+    'application': False,
+    'auto_install': False,
+    'certificate': '',
+}
diff --git a/tko_purchase_requisition/purchase_requisition.py b/tko_purchase_requisition/purchase_requisition.py
new file mode 100644
index 0000000..a93bd61
--- /dev/null
+++ b/tko_purchase_requisition/purchase_requisition.py
@@ -0,0 +1,62 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    ThinkOpen Solutions Brasil
+#    Copyright (C) Thinkopen Solutions <http://www.tkobr.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 odoo import models, fields, api
+
+
+class PurchaseRequisition(models.Model):
+    _inherit = 'purchase.requisition'
+
+    parent_id = fields.Many2one('purchase.requisition', string='Merged Into', readonly=True)
+    child_ids = fields.One2many('purchase.requisition','parent_id','Children')
+
+
+    @api.multi
+    def send_mail_to_all_quotations(self):
+        template_id = self.env.ref('purchase.email_template_edi_purchase')
+        if template_id:
+            for rfq in self.purchase_ids:
+                if rfq.partner_id.email:
+                    values = template_id.generate_email(rfq.id)
+                    values['email_to'] = rfq.partner_id.email
+                    values['email_from'] = self.env.user.email
+                    mail = self.env['mail.mail'].create(values)
+                    attachment_ids = []
+                    # create attachments
+                    for attachment in values['attachments']:
+                        attachment_data = {
+                            'name': attachment[0],
+                            'datas_fname': attachment[0],
+                            'datas': attachment[1],
+                            'res_model': 'mail.message',
+                            'res_id': mail.mail_message_id.id,
+                        }
+                        attachment_ids.append(self.env['ir.attachment'].create(attachment_data).id)
+                    if attachment_ids:
+                        mail.write({'attachment_ids': [(6, 0, attachment_ids)]})
+                    # send mail
+                    mail.send()
+                    # change status of RFQ
+                    rfq.state = 'sent'
+        return True
diff --git a/tko_purchase_requisition/purchase_requisition_view.xml b/tko_purchase_requisition/purchase_requisition_view.xml
new file mode 100644
index 0000000..c769fb1
--- /dev/null
+++ b/tko_purchase_requisition/purchase_requisition_view.xml
@@ -0,0 +1,33 @@
+<openerp>
+    <data>
+        <record id="purchase_requisition_form_inherit" model="ir.ui.view">
+            <field name="name">purchase.requisition</field>
+            <field name="model">purchase.requisition</field>
+            <field name="inherit_id" ref="purchase_requisition.view_purchase_requisition_form"/>
+            <field name="arch" type="xml">
+                <field name="picking_type_id" position="after">
+                    <field name="parent_id" attrs="{'invisible': [('parent_id','=',False)]}"/>
+                </field>
+                <xpath expr="//form/sheet/div[@name='button_box']/button[@class='oe_stat_button']" position="before">
+                    <button name="send_mail_to_all_quotations" type="object" string="Send Mail to All"
+                            attrs="{'invisible': ['|', ('purchase_ids','=',[]),('state', 'in', ('draft' ,'open','done'))]}" 
+                            class="btn-primary" style="margin-right: 10px;"/>
+                </xpath>
+                <notebook position="inside">
+                    <page name="child_ids" string="Origin" attrs="{'invisible':[('child_ids','=',[])]}">
+                        <field name="child_ids" nolabel="1" readonly="1">
+                            <tree>
+                                <field name="name"/>
+                                <field name="origin"/>
+                                <field name="state"/>
+                            </tree>
+                        </field>
+                    </page>
+                    <page name="purchase_ids" string="Purchase" invisible="1">
+                        <field name="purchase_ids"/>
+                    </page>
+                </notebook>
+            </field>
+        </record>
+    </data>
+</openerp>
diff --git a/tko_purchase_requisition/wizard/__init__.py b/tko_purchase_requisition/wizard/__init__.py
new file mode 100644
index 0000000..cd159b2
--- /dev/null
+++ b/tko_purchase_requisition/wizard/__init__.py
@@ -0,0 +1,25 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    ThinkOpen Solutions Brasil
+#    Copyright (C) Thinkopen Solutions <http://www.tkobr.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/>.
+#
+##############################################################################
+
+import purchase_requisition_wizard
diff --git a/tko_purchase_requisition/wizard/purchase_requisition_wizard.py b/tko_purchase_requisition/wizard/purchase_requisition_wizard.py
new file mode 100644
index 0000000..46e913f
--- /dev/null
+++ b/tko_purchase_requisition/wizard/purchase_requisition_wizard.py
@@ -0,0 +1,87 @@
+# -*- encoding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
+#
+#    ThinkOpen Solutions Brasil
+#    Copyright (C) Thinkopen Solutions <http://www.tkobr.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 odoo import fields, models, api
+from openerp.exceptions import Warning
+
+
+class PurchaseRequisitionWizard(models.TransientModel):
+    _name = 'purchase.requisition.wizard'
+
+    requisition_order_ids = fields.Many2many('purchase.requisition', 'requisition_order_merge_wizard_rel', 'wizard_id',
+                                             'requisition_id', string='Requisition Orders')
+
+    @api.model
+    def default_get(self, fields):
+        res = super(PurchaseRequisitionWizard, self).default_get(fields)
+        active_ids = self.env.context.get('active_ids', [])
+        if active_ids:
+            res['requisition_order_ids'] = [(6, 0, active_ids)]
+        return res
+
+    @api.multi
+    def validate_requisition_orders(self):
+        invalid_orders = []
+        for order in self.requisition_order_ids:
+            if order.state != 'draft':
+                invalid_orders.append(order.name)
+        return invalid_orders
+
+    @api.multi
+    def merge_requisition_orders(self):
+        self.ensure_one()
+        invalid_orders = self.validate_requisition_orders()
+        if len(invalid_orders):
+            raise Warning("%s orders not in Draft stage" % invalid_orders)
+        requisition_line_vals = {}
+        for order in self.requisition_order_ids:
+            for line in order.line_ids:
+                uom_id = line.product_uom_id.id or False
+                if line.product_id.id not in requisition_line_vals.keys():
+                    requisition_line_vals.update({line.product_id.id: (line.product_qty, uom_id)})
+                else:
+                    requisition_line_vals[line.product_id.id] = (requisition_line_vals[
+                                                                     line.product_id.id][0] + line.product_qty, uom_id)
+        # create requisition_order
+        order = self.requisition_order_ids[0].sudo().copy(default={'line_ids': False})
+        for product_id, qty_uom in requisition_line_vals.iteritems():
+            self.env['purchase.requisition.line'].create(
+                {'product_id': product_id, 'product_qty': qty_uom[0], 'requisition_id': order.id,
+                 'product_uom_id': qty_uom[1]})
+        # cancel selected orders
+        self.requisition_order_ids.write({'parent_id': order.id})
+        # cancel orders
+        for tender in self.requisition_order_ids:
+            tender.action_cancel()
+        model, view_id = self.env['ir.model.data'].get_object_reference('purchase_requisition',
+                                                                        'view_purchase_requisition_form')
+        # return target form
+        return {
+            'view_type': 'form',
+            'view_mode': 'form',
+            'view_id': view_id,
+            'type': 'ir.actions.act_window',
+            'res_model': 'purchase.requisition',
+            'res_id': order.id,
+            'view_type': 'form',
+        }
diff --git a/tko_purchase_requisition/wizard/purchase_requisition_wizard_view.xml b/tko_purchase_requisition/wizard/purchase_requisition_wizard_view.xml
new file mode 100644
index 0000000..ea81a32
--- /dev/null
+++ b/tko_purchase_requisition/wizard/purchase_requisition_wizard_view.xml
@@ -0,0 +1,33 @@
+<openerp>
+    <data>
+        <record id="purchase_requisition_wizard_form" model="ir.ui.view">
+            <field name="name">purchase.requisition.wizard</field>
+            <field name="model">purchase.requisition.wizard</field>
+            <field name="arch" type="xml">
+                <form string="Merge Requisition Orders" version="7.0">
+                    <group string="Requisition Orders">
+                        <field name="requisition_order_ids" domain="[('state','=','draft')]" widget="many2many_tags" nolabel="1" options="{'no_create': True}"/>
+                    </group>
+                    <footer>
+                        <button name="merge_requisition_orders"
+                                string="Merge" type="object"
+                                class="oe_highlight"
+                                />
+                        <button string="Cancelar" special="cancel"/>
+                    </footer>
+                </form>
+            </field>
+        </record>
+
+
+        <act_window name="Merge Requisition Orders"
+        res_model="purchase.requisition.wizard"
+        src_model="purchase.requisition"
+        view_mode="form"
+        target="new"
+        key2="client_action_multi"
+        id="purchase_requisition_wizard_action"/>
+
+
+    </data>
+</openerp>
\ No newline at end of file