diff --git a/gulliver/system/class.form.php b/gulliver/system/class.form.php
index 67424c54e..a11e56610 100755
--- a/gulliver/system/class.form.php
+++ b/gulliver/system/class.form.php
@@ -610,6 +610,9 @@ class Form extends XmlForm
             if (in_array( $dataFieldName, $grids )) {
                 foreach ($dataField as $indexGrid => $dataGrid) {
                     foreach ($dataGrid as $fieldGridName => $fieldGridValue) {
+                        if (!isset($requiredFieldsGrids[$dataFieldName])) {
+                            $requiredFieldsGrids[$dataFieldName] = array();
+                        }
                         if (! is_array( $requiredFieldsGrids[$dataFieldName] )) {
                             $requiredFieldsGrids[$dataFieldName] = array ();
                         }
diff --git a/workflow/engine/classes/class.case.php b/workflow/engine/classes/class.case.php
index 5742a8fbb..a1e636ed7 100755
--- a/workflow/engine/classes/class.case.php
+++ b/workflow/engine/classes/class.case.php
@@ -897,7 +897,7 @@ class Cases
                     }
                 }
             } else {
-                $aReturn[$mKey] = $aArray2[$mKey];
+                $aReturn[$mKey] = isset($aArray2[$mKey]) ? $aArray2[$mKey] : null;
             }
         }
         return $aReturn;
diff --git a/workflow/engine/methods/cases/casesSaveDataView.php b/workflow/engine/methods/cases/casesSaveDataView.php
index 43ad3f696..fa1a8a96d 100755
--- a/workflow/engine/methods/cases/casesSaveDataView.php
+++ b/workflow/engine/methods/cases/casesSaveDataView.php
@@ -29,6 +29,10 @@
 /* Includes */
 G::LoadClass( 'case' );
 
+if (!is_array($_POST['form'])) {
+    $_POST['form'] = array();
+}
+
 //load the variables
 $oCase = new Cases();
 $oCase->thisIsTheCurrentUser( $_SESSION['APPLICATION'], $_SESSION['INDEX'], $_SESSION['USER_LOGGED'], 'REDIRECT', 'casesListExtJs' );