diff --git a/addons/sale_stock/sale_stock.py b/addons/sale_stock/sale_stock.py
index 6f891a047a1..f63282b7a16 100644
--- a/addons/sale_stock/sale_stock.py
+++ b/addons/sale_stock/sale_stock.py
@@ -23,7 +23,6 @@ from datetime import datetime, timedelta
 from openerp.tools import DEFAULT_SERVER_DATE_FORMAT, DEFAULT_SERVER_DATETIME_FORMAT, DATETIME_FORMATS_MAP, float_compare
 from dateutil.relativedelta import relativedelta
 from openerp.osv import fields, osv
-from openerp import netsvc
 from openerp.tools.translate import _
 
 class sale_shop(osv.osv):
diff --git a/addons/sale_stock/test/cancel_order_sale_stock.yml b/addons/sale_stock/test/cancel_order_sale_stock.yml
index 6805a90ca80..9081cac9fa3 100644
--- a/addons/sale_stock/test/cancel_order_sale_stock.yml
+++ b/addons/sale_stock/test/cancel_order_sale_stock.yml
@@ -17,11 +17,9 @@
   Now I cancel latest shipment.
 -
   !python {model: stock.picking}: |
-    import netsvc
     delivery_orders = self.search(cr, uid, [('sale_id','=',ref("sale.sale_order_8"))])
     last_delivery_order_id = delivery_orders[0]
-    wf_service = netsvc.LocalService("workflow")
-    wf_service.trg_validate(uid, 'stock.picking', last_delivery_order_id, 'button_cancel', cr)
+    self.pool.get('stock.picking').signal_button_cancel(cr, uid, [last_delivery_order_id])
 -
   I run the scheduler.
 -
@@ -50,11 +48,9 @@
   To cancel the sale order from Invoice Exception, I have to cancel the invoice of sale order.
 -
   !python {model: sale.order}: |
-    import netsvc
     invoice_ids = self.browse(cr, uid, ref("sale.sale_order_8")).invoice_ids
-    wf_service = netsvc.LocalService("workflow")
     first_invoice_id = invoice_ids[0]
-    wf_service.trg_validate(uid, 'account.invoice', first_invoice_id.id, 'invoice_cancel', cr)
+    self.pool.get('account.invoice').signal_invoice_cancel(cr, uid, [first_invoice_id.id])
 -
   I check order status in "Invoice Exception" and related invoice is in cancel state.
 -
diff --git a/addons/sale_stock/test/picking_order_policy.yml b/addons/sale_stock/test/picking_order_policy.yml
index 800c131e288..a28326598ac 100644
--- a/addons/sale_stock/test/picking_order_policy.yml
+++ b/addons/sale_stock/test/picking_order_policy.yml
@@ -132,11 +132,9 @@
   I open the Invoice.
 -
   !python {model: sale.order}: |
-    import netsvc
-    wf_service = netsvc.LocalService("workflow")
     so = self.browse(cr, uid, ref("sale.sale_order_6"))
     for invoice in so.invoice_ids:
-      wf_service.trg_validate(uid, 'account.invoice', invoice.id, 'invoice_open', cr)
+      self.pool.get('account.invoice').signal_invoice_open(cr, uid, [invoice.id])
 -
   I pay the invoice
 -