diff --git a/workflow/engine/methods/cases/cases_Ajax.php b/workflow/engine/methods/cases/cases_Ajax.php
index 390dfbc84..229c961c3 100755
--- a/workflow/engine/methods/cases/cases_Ajax.php
+++ b/workflow/engine/methods/cases/cases_Ajax.php
@@ -967,6 +967,29 @@ switch(($_POST['action'])?$_POST['action']:$_REQUEST['action']) {
 			echo $json->encode($aTypesID);
 		}
 	break;
+  case "previusJump":
+    require_once 'classes/model/Application.php';
+        
+    $oCriteria = new Criteria('workflow');
+    $response  = array( "success" => true );
+
+
+    $oCriteria->add(ApplicationPeer::APP_NUMBER, $_POST['appNumber']);
+    $oDataset = ApplicationPeer::doSelectRS($oCriteria);
+    $oDataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
+    $oDataset->next();
+    $aApplication = $oDataset->getRow();
+
+    if (is_array($aApplication)) {
+      $response['exists'] = true;
+    } else {
+      $response['exists'] = false;
+    }
+    
+    echo G::json_encode($response);
+  break;
+
+  
 	
 	default:
 		echo 'default';
diff --git a/workflow/engine/templates/cases/casesList.js b/workflow/engine/templates/cases/casesList.js
index 97f07f934..e84b15fff 100644
--- a/workflow/engine/templates/cases/casesList.js
+++ b/workflow/engine/templates/cases/casesList.js
@@ -101,10 +101,28 @@ function openCase(){
 }
 
 function jumpToCase(appNumber){
-  params = 'APP_NUMBER=' + appNumber;
-  params += '&action=jump';
-  requestFile = '../cases/open';
-  redirect(requestFile + '?' + params);
+
+  //  Code add by Brayan Pereyra - cochalo
+  //  This ajax validate the appNumber exists
+  Ext.MessageBox.show({ msg: _('ID_PROCESSING'), wait:true,waitConfig: {interval:200} });
+  Ext.Ajax.request({
+    url: 'cases_Ajax',
+    success: function(response) {
+      var res = Ext.decode(response.responseText);
+      if (res.exists === true) {
+        params = 'APP_NUMBER=' + appNumber;
+        params += '&action=jump';
+        requestFile = '../cases/open';
+        redirect(requestFile + '?' + params);
+      } else {
+        Ext.MessageBox.hide();
+        var message = new Array();
+        message['CASE_NUMBER'] = appNumber;
+        msgBox(_('ID_INPUT_ERROR'), _('ID_CASE_DOES_NOT_EXIST_JS', appNumber), 'error');
+      }
+    },
+    params: {action:'previusJump', appNumber: appNumber}
+  });  
 }
 
 function deleteCase() {