diff --git a/easy_my_coop/models/account_invoice.py b/easy_my_coop/models/account_invoice.py
index f9b6c68..e294768 100644
--- a/easy_my_coop/models/account_invoice.py
+++ b/easy_my_coop/models/account_invoice.py
@@ -59,6 +59,8 @@ class account_invoice(models.Model):
         sequence_operation = self.env.ref('easy_my_coop.sequence_register_operation', False)
         sub_reg_operation = sequence_operation.next_by_id()
 
+        certificat_email_template = self.env.ref(mail_template_id, False)
+
         for line in self.invoice_line_ids:
             self.env['subscription.register'].create({
                 'name': sub_reg_operation,
@@ -77,8 +79,9 @@ class account_invoice(models.Model):
                 'share_unit_price': line.price_unit,
                 'effective_date': effective_date
                 })
+            if line.product_id.mail_template:
+                certificat_email_template = line.product_id.mail_template
 
-        certificat_email_template = self.env.ref(mail_template_id, False)
         # we send the email with the certificat in attachment
         certificat_email_template.send_mail(self.partner_id.id, False)
 
diff --git a/easy_my_coop/models/product.py b/easy_my_coop/models/product.py
index 04168ea..12cfb52 100644
--- a/easy_my_coop/models/product.py
+++ b/easy_my_coop/models/product.py
@@ -5,15 +5,17 @@ from openerp import api, fields, models
 class ProductTemplate(models.Model):
     _inherit = 'product.template'
 
-    is_share = fields.Boolean(string='Is share?')
-    short_name = fields.Char(string='Short name')
-    display_on_website = fields.Boolean(string='Display on website')
-    default_share_product = fields.Boolean(string='Default share product')
-    minimum_quantity = fields.Integer(string='Minimum quantity', default=1)
+    is_share = fields.Boolean(string="Is share?")
+    short_name = fields.Char(string="Short name")
+    display_on_website = fields.Boolean(string="Display on website")
+    default_share_product = fields.Boolean(string="Default share product")
+    minimum_quantity = fields.Integer(string="Minimum quantity", default=1)
     force_min_qty = fields.Boolean(String="Force minimum quantity?")
     by_company = fields.Boolean(string="Can be subscribed by companies?")
     by_individual = fields.Boolean(string="Can be subscribed by individuals?")
-    customer = fields.Boolean(string='Become customer')
+    customer = fields.Boolean(string="Become customer")
+    mail_template = fields.Many2one('mail.template',
+                                    string="Mail template")
 
     @api.multi
     def get_web_share_products(self, is_company):
diff --git a/easy_my_coop/view/product_view.xml b/easy_my_coop/view/product_view.xml
index c778b1f..9c97e95 100644
--- a/easy_my_coop/view/product_view.xml
+++ b/easy_my_coop/view/product_view.xml
@@ -31,6 +31,7 @@
             		<field name="customer" attrs="{'invisible':[('is_share','=',False)]}"/>
             		<field name="by_company" attrs="{'invisible':[('is_share','=',False)]}" groups="easy_my_coop.group_energiris_user"/>
             		<field name="by_individual" attrs="{'invisible':[('is_share','=',False)]}" groups="easy_my_coop.group_energiris_user"/>
+            		<field name="mail_template" attrs="{'invisible':[('is_share','=',False)]}" groups="easy_my_coop.group_energiris_user"/>
             	</xpath>
             </field>
         </record>