diff --git a/addons/account/account_invoice.py b/addons/account/account_invoice.py
index 57f16473b82..15f000cb90e 100644
--- a/addons/account/account_invoice.py
+++ b/addons/account/account_invoice.py
@@ -390,28 +390,32 @@ class account_invoice(osv.osv):
         '''
         This function opens a window to compose an email, with the edi invoice template message loaded by default
         '''
-        mod_obj = self.pool.get('ir.model.data')
-        template = mod_obj.get_object_reference(cr, uid, 'account', 'email_template_edi_invoice')
-        template_id = template and template[1] or False
-        res = mod_obj.get_object_reference(cr, uid, 'mail', 'email_compose_message_wizard_form')
-        res_id = res and res[1] or False
+        assert len(ids) == 1, 'This option should only be used for a single id at a time.'
+        ir_model_data = self.pool.get('ir.model.data')
+        try:
+            template_id = ir_model_data.get_object_reference(cr, uid, 'account', 'email_template_edi_invoice')[1]
+        except ValueError:
+            template_id = False
+        try:
+            compose_form_id = ir_model_data.get_object_reference(cr, uid, 'mail', 'email_compose_message_wizard_form')[1]
+        except ValueError:
+            compose_form_id = False 
         ctx = dict(context)
         ctx.update({
             'default_model': 'account.invoice',
             'default_res_id': ids[0],
-            'default_use_template': True,
+            'default_use_template': bool(template_id),
             'default_template_id': template_id,
             })
         return {
+            'type': 'ir.actions.act_window',
             'view_type': 'form',
             'view_mode': 'form',
             'res_model': 'mail.compose.message',
-            'views': [(res_id, 'form')],
-            'view_id': res_id,
-            'type': 'ir.actions.act_window',
+            'views': [(compose_form_id, 'form')],
+            'view_id': compose_form_id,
             'target': 'new',
             'context': ctx,
-            'nodestroy': True,
         }
 
     def confirm_paid(self, cr, uid, ids, context=None):
diff --git a/addons/account/edi/invoice.py b/addons/account/edi/invoice.py
index 80a4b145054..3e27bc5ea99 100644
--- a/addons/account/edi/invoice.py
+++ b/addons/account/edi/invoice.py
@@ -148,7 +148,6 @@ class account_invoice(osv.osv, EDIMixin):
         edi_document['partner_id'] = partner_edi_m2o
         edi_document.pop('partner_address', None) # ignored, that's supposed to be our own address!
 
-
         return partner_id
 
     def edi_import(self, cr, uid, edi_document, context=None):
diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index db6ed8b80be..ed8cdb63cef 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -349,28 +349,31 @@ class purchase_order(osv.osv):
         '''
         This function opens a window to compose an email, with the edi purchase template message loaded by default
         '''
-        mod_obj = self.pool.get('ir.model.data')
-        template = mod_obj.get_object_reference(cr, uid, 'purchase', 'email_template_edi_purchase')
-        template_id = template and template[1] or False
-        res = mod_obj.get_object_reference(cr, uid, 'mail', 'email_compose_message_wizard_form')
-        res_id = res and res[1] or False
+        ir_model_data = self.pool.get('ir.model.data')
+        try:
+            template_id = ir_model_data.get_object_reference(cr, uid, 'purchase', 'email_template_edi_purchase')[1]
+        except ValueError:
+            template_id = False
+        try:
+            compose_form_id = ir_model_data.get_object_reference(cr, uid, 'mail', 'email_compose_message_wizard_form')[1]
+        except ValueError:
+            compose_form_id = False 
         ctx = dict(context)
         ctx.update({
             'default_model': 'purchase.order',
             'default_res_id': ids[0],
-            'default_use_template': True,
+            'default_use_template': bool(template_id),
             'default_template_id': template_id,
-            })
+        })
         return {
+            'type': 'ir.actions.act_window',
             'view_type': 'form',
             'view_mode': 'form',
             'res_model': 'mail.compose.message',
-            'views': [(res_id, 'form')],
-            'view_id': res_id,
-            'type': 'ir.actions.act_window',
+            'views': [(compose_form_id, 'form')],
+            'view_id': compose_form_id,
             'target': 'new',
             'context': ctx,
-            'nodestroy': True,
         }
 
     #TODO: implement messages system
diff --git a/addons/sale/sale.py b/addons/sale/sale.py
index a2ee88ab860..3c984b64349 100644
--- a/addons/sale/sale.py
+++ b/addons/sale/sale.py
@@ -618,29 +618,32 @@ class sale_order(osv.osv):
         This function opens a window to compose an email, with the edi sale template message loaded by default
         '''
         assert len(ids) == 1, 'This option should only be used for a single id at a time.'
-        mod_obj = self.pool.get('ir.model.data')
-        template = mod_obj.get_object_reference(cr, uid, 'sale', 'email_template_edi_sale')
-        template_id = template and template[1] or False
-        res = mod_obj.get_object_reference(cr, uid, 'mail', 'email_compose_message_wizard_form')
-        res_id = res and res[1] or False
+        ir_model_data = self.pool.get('ir.model.data')
+        try:
+            template_id = ir_model_data.get_object_reference(cr, uid, 'sale', 'email_template_edi_sale')[1]
+        except ValueError:
+            template_id = False
+        try:
+            compose_form_id = ir_model_data.get_object_reference(cr, uid, 'mail', 'email_compose_message_wizard_form')[1]
+        except ValueError:
+            compose_form_id = False 
         ctx = dict(context)
         ctx.update({
             'default_model': 'sale.order',
             'default_res_id': ids[0],
-            'default_use_template': True,
+            'default_use_template': bool(template_id),
             'default_template_id': template_id,
             'mark_so_as_sent': True
         })
         return {
+            'type': 'ir.actions.act_window',
             'view_type': 'form',
             'view_mode': 'form',
             'res_model': 'mail.compose.message',
-            'views': [(res_id, 'form')],
-            'view_id': res_id,
-            'type': 'ir.actions.act_window',
+            'views': [(compose_form_id, 'form')],
+            'view_id': compose_form_id,
             'target': 'new',
             'context': ctx,
-            'nodestroy': True,
         }
 
     def action_done(self, cr, uid, ids, context=None):