diff --git a/addons/delivery/delivery.py b/addons/delivery/delivery.py
index 59542eefc90..7b3791bfcee 100644
--- a/addons/delivery/delivery.py
+++ b/addons/delivery/delivery.py
@@ -195,7 +195,7 @@ class delivery_grid(osv.osv):
         for line in order.order_line:
             if not line.product_id or line.is_delivery:
                 continue
-            q = product_uom_obj._compute_qty(cr, uid, line.product_uom.id, line.product_uos_qty, line.product_id.uom_id.id)
+            q = product_uom_obj._compute_qty(cr, uid, line.product_uom.id, line.product_uom_qty, line.product_id.uom_id.id)
             weight += (line.product_id.weight or 0.0) * q
             volume += (line.product_id.volume or 0.0) * q
         total = order.amount_total or 0.0
diff --git a/addons/mail/mail_thread.py b/addons/mail/mail_thread.py
index 922f6cd3af5..279294d49ff 100644
--- a/addons/mail/mail_thread.py
+++ b/addons/mail/mail_thread.py
@@ -361,7 +361,10 @@ class mail_thread(osv.AbstractModel):
 
         # automatic logging unless asked not to (mainly for various testing purpose)
         if not context.get('mail_create_nolog'):
-            self.message_post(cr, uid, thread_id, body=_('%s created') % (self._description), context=context)
+            ir_model_pool = self.pool['ir.model']
+            ids = ir_model_pool.search(cr, uid, [('model', '=', self._name)], context=context)
+            name = ir_model_pool.read(cr, uid, ids, ['name'], context=context)[0]['name']
+            self.message_post(cr, uid, thread_id, body=_('%s created') % name, context=context)
 
         # auto_subscribe: take values and defaults into account
         create_values = dict(values)
diff --git a/addons/stock/stock.py b/addons/stock/stock.py
index 34a24354508..b94199746b8 100644
--- a/addons/stock/stock.py
+++ b/addons/stock/stock.py
@@ -1480,7 +1480,7 @@ class stock_production_lot(osv.osv):
         'product_id': lambda x, y, z, c: c.get('product_id', False),
     }
     _sql_constraints = [
-        ('name_ref_uniq', 'unique (name, ref)', 'The combination of Serial Number and internal reference must be unique !'),
+        ('name_ref_uniq', 'unique (name, ref, product_id, company_id)', 'The combination of Serial Number, internal reference, Product and Company must be unique !'),
     ]
     def action_traceability(self, cr, uid, ids, context=None):
         """ It traces the information of a product