diff --git a/workflow/engine/src/ProcessMaker/Services/Api/User.php b/workflow/engine/src/ProcessMaker/Services/Api/User.php
index 43842be7a..556ef88d5 100644
--- a/workflow/engine/src/ProcessMaker/Services/Api/User.php
+++ b/workflow/engine/src/ProcessMaker/Services/Api/User.php
@@ -1,8 +1,11 @@
 <?php
 namespace ProcessMaker\Services\Api;
 
-use \ProcessMaker\Services\Api;
-use \Luracast\Restler\RestException;
+use Exception;
+use Luracast\Restler\RestException;
+use ProcessMaker\BusinessModel\User as BmUser;
+use ProcessMaker\Services\Api;
+use ProcessMaker\Util\DateTime;
 
 /**
  * User Api Controller
@@ -21,21 +24,21 @@ class User extends Api
      * @class  AccessControl {@permission PM_USERS,PM_FACTORY}
      * @url GET
      */
-    public function index($filter = null, $lfilter = null, $rfilter = null, $start = null, $limit = null, $status = null)
+    public function index($filter = null, $lfilter = null, $rfilter = null, $start = null, $limit = null, $status = null, $sort = null, $dir = null)
     {
         try {
-            $user = new \ProcessMaker\BusinessModel\User();
+            $user = new BmUser();
             $user->setFormatFieldNameInUppercase(false);
 
-            $arrayFilterData = array(
+            $arrayFilterData = [
                 "filter"       => (!is_null($filter))? $filter : ((!is_null($lfilter))? $lfilter : ((!is_null($rfilter))? $rfilter : null)),
                 "filterOption" => (!is_null($filter))? ""      : ((!is_null($lfilter))? "LEFT"   : ((!is_null($rfilter))? "RIGHT"  : ""))
-            );
+            ];
 
-            $response = $user->getUsers($arrayFilterData, null, null, $start, $limit, false, true, $status);
+            $response = $user->getUsers($arrayFilterData, $sort, $dir, $start, $limit, false, true, $status);
 
-            return \ProcessMaker\Util\DateTime::convertUtcToIso8601($response['data'], $this->arrayFieldIso8601);
-        } catch (\Exception $e) {
+            return DateTime::convertUtcToIso8601($response['data'], $this->arrayFieldIso8601);
+        } catch (Exception $e) {
             throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
         }
     }
@@ -50,13 +53,12 @@ class User extends Api
     public function doGetUser($usr_uid)
     {
         try {
-            $user = new \ProcessMaker\BusinessModel\User();
+            $user = new BmUser();
             $user->setFormatFieldNameInUppercase(false);
-
             $response = $user->getUser($usr_uid);
 
-            return \ProcessMaker\Util\DateTime::convertUtcToIso8601($response, $this->arrayFieldIso8601);
-        } catch (\Exception $e) {
+            return DateTime::convertUtcToIso8601($response, $this->arrayFieldIso8601);
+        } catch (Exception $e) {
             throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
         }
     }
@@ -73,12 +75,13 @@ class User extends Api
     public function doPostUser($request_data)
     {
         try {
-            $user = new \ProcessMaker\BusinessModel\User();
+            $user = new BmUser();
             $arrayData = $user->create($request_data);
             $response = $arrayData;
+
             return $response;
-        } catch (\Exception $e) {
-            throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
+        } catch (Exception $e) {
+            throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
         }
     }
 
@@ -99,10 +102,10 @@ class User extends Api
     {
         try {
             $userLoggedUid = $this->getUserId();
-            $user = new \ProcessMaker\BusinessModel\User();
+            $user = new BmUser();
             $arrayData = $user->update($usr_uid, $request_data, $userLoggedUid);
-        } catch (\Exception $e) {
-            throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
+        } catch (Exception $e) {
+            throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
         }
     }
 
@@ -116,10 +119,10 @@ class User extends Api
     public function doDeleteUser($usr_uid)
     {
         try {
-            $user = new \ProcessMaker\BusinessModel\User();
+            $user = new BmUser();
             $user->delete($usr_uid);
-        } catch (\Exception $e) {
-            throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
+        } catch (Exception $e) {
+            throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
         }
     }
 
@@ -133,10 +136,9 @@ class User extends Api
     public function doPostUserImageUpload($usr_uid)
     {
         try {
-            $user = new \ProcessMaker\BusinessModel\User();
+            $user = new BmUser();
             $user->uploadImage($usr_uid);
-        } catch (\Exception $e) {
-            //response
+        } catch (Exception $e) {
             throw new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage());
         }
     }