diff --git a/addons/point_of_sale/point_of_sale.py b/addons/point_of_sale/point_of_sale.py
index 7d794dbfbde..236c5cd0172 100644
--- a/addons/point_of_sale/point_of_sale.py
+++ b/addons/point_of_sale/point_of_sale.py
@@ -25,6 +25,7 @@ import time
 from openerp import tools
 from openerp.osv import fields, osv
 from openerp.tools.translate import _
+from openerp.exceptions import Warning
 
 import openerp.addons.decimal_precision as dp
 import openerp.addons.product.product
@@ -589,11 +590,7 @@ class pos_order(osv.osv):
             if order['amount_return']:
                 cash_journal = session.cash_journal_id
                 if not cash_journal:
-                    cash_journal_ids = filter(lambda st: st.journal_id.type=='cash', session.statement_ids)
-                    if not len(cash_journal_ids):
-                        raise osv.except_osv( _('error!'),
-                            _("No cash statement found for this session. Unable to record returned cash."))
-                    cash_journal = cash_journal_ids[0].journal_id
+                    raise Warning(_('No cash statement found with cash control enabled for this session. Unable to record returned cash.'))
                 self.add_payment(cr, uid, order_id, {
                     'amount': -order['amount_return'],
                     'payment_date': time.strftime('%Y-%m-%d %H:%M:%S'),
diff --git a/addons/point_of_sale/static/src/js/models.js b/addons/point_of_sale/static/src/js/models.js
index 07869f103e2..2ac04253576 100644
--- a/addons/point_of_sale/static/src/js/models.js
+++ b/addons/point_of_sale/static/src/js/models.js
@@ -567,6 +567,10 @@ function openerp_pos_models(instance, module){ //module is instance.point_of_sal
                 return server_ids;
             }).fail(function (error, event){
                 if(error.code === 200 ){    // Business Logic Error, not a connection problem
+                    //if warning do not need to dispaly traceback!!
+                    if(error.data.exception_type == 'warning'){
+                        delete error.data.debug;
+                    }
                     self.pos_widget.screen_selector.show_popup('error-traceback',{
                         message: error.data.message,
                         comment: error.data.debug