diff --git a/bt5/erp5_payroll/SkinTemplateItem/portal_skins/erp5_payroll/PaySheetTransaction_checkParameters.xml b/bt5/erp5_payroll/SkinTemplateItem/portal_skins/erp5_payroll/PaySheetTransaction_checkParameters.xml
index 7ba77a9f49272a00788928e7e31f0d27268c671b..18090dbe524d3cbeaae0b1f7cc82b699b12ba306 100644
--- a/bt5/erp5_payroll/SkinTemplateItem/portal_skins/erp5_payroll/PaySheetTransaction_checkParameters.xml
+++ b/bt5/erp5_payroll/SkinTemplateItem/portal_skins/erp5_payroll/PaySheetTransaction_checkParameters.xml
@@ -70,11 +70,11 @@ def redirect(msg):\n
 if not paysheet.getPriceCurrency():\n
   return redirect(\'Currency must be defined\')\n
 \n
-#if not paysheet.getStartDate():\n
-#  return redirect(\'Work Period Start must be defined\')\n
-#\n
-#if not paysheet.getStopDate():\n
-#  return redirect(\'Work Period End must be defined\')\n
+if not paysheet.getStartDate():\n
+  return redirect(\'Work Period Start must be defined\')\n
+\n
+if not paysheet.getStopDate():\n
+  return redirect(\'Work Period End must be defined\')\n
 \n
 if not employee:\n
   return redirect(\'The employee must be defined\')\n
@@ -95,7 +95,7 @@ if not employee_obj.getMaritalStatusId():\n
   return redirect(\'The employee must have a marital status\')\n
 \n
 context.applyTransformation()\n
-msg = Base_translateString(\'Pay sheet lines created.\')\n
+msg = Base_translateString(\'Pay sheet lines updated.\')\n
 return context.Base_redirect(\'view\',\n
                             keep_items=dict(portal_status_message=msg))\n
 </string> </value>
diff --git a/bt5/erp5_payroll/bt/revision b/bt5/erp5_payroll/bt/revision
index 281cd6613181a393e96a191e3a2a1ed84fed60df..4af7c92223a703030640aecf8e393d8656d607cc 100644
--- a/bt5/erp5_payroll/bt/revision
+++ b/bt5/erp5_payroll/bt/revision
@@ -1 +1 @@
-469
\ No newline at end of file
+470
\ No newline at end of file