diff --git a/addons/account/partner.py b/addons/account/partner.py
index 1f1c73ce371..40d8702de16 100644
--- a/addons/account/partner.py
+++ b/addons/account/partner.py
@@ -22,6 +22,7 @@
 from operator import itemgetter
 import time
 
+from openerp import SUPERUSER_ID
 from openerp.osv import fields, osv
 from openerp import api
 
@@ -317,7 +318,8 @@ class res_partner(osv.osv):
         return False
 
     def mark_as_reconciled(self, cr, uid, ids, context=None):
-        return self.write(cr, uid, ids, {'last_reconciliation_date': time.strftime('%Y-%m-%d %H:%M:%S')}, context=context)
+        self.pool['account.move.reconcile'].check_access_rights(cr, uid, 'write')
+        return self.write(cr, SUPERUSER_ID, ids, {'last_reconciliation_date': time.strftime('%Y-%m-%d %H:%M:%S')}, context=context)
 
     _columns = {
         'vat_subjected': fields.boolean('VAT Legal Statement', help="Check this box if the partner is subjected to the VAT. It will be used for the VAT legal statement."),
diff --git a/addons/purchase/purchase.py b/addons/purchase/purchase.py
index 1f2451f40d4..215efa4c790 100644
--- a/addons/purchase/purchase.py
+++ b/addons/purchase/purchase.py
@@ -574,7 +574,7 @@ class purchase_order(osv.osv):
                     todo.append(line.id)        
         self.pool.get('purchase.order.line').action_confirm(cr, uid, todo, context)
         for id in ids:
-            self.write(cr, uid, [id], {'state' : 'confirmed', 'validator' : uid})
+            self.write(cr, uid, [id], {'state' : 'confirmed', 'validator' : uid}, context=context)
         return True
 
     def _choose_account_from_po_line(self, cr, uid, po_line, context=None):