diff --git a/workflow/engine/classes/ListAdditionalColumnsInterface.php b/workflow/engine/classes/ListAdditionalColumnsInterface.php
new file mode 100644
index 000000000..8844f0e67
--- /dev/null
+++ b/workflow/engine/classes/ListAdditionalColumnsInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * The list implement additional columns.
+ *
+ */
+interface ListAdditionalColumnsInterface
+{
+
+    /**
+     * Get the $additionalClassName value.
+     *
+     * @return string
+     */
+    public function getAdditionalClassName();
+
+    /**
+     * Set the value of $additionalClassName.
+     *
+     * @param string $v new value
+     * @return void
+     */
+    public function setAdditionalClassName($v);
+}
diff --git a/workflow/engine/classes/ListCreateUpdateInterface.php b/workflow/engine/classes/ListCreateUpdateInterface.php
new file mode 100644
index 000000000..98cfae393
--- /dev/null
+++ b/workflow/engine/classes/ListCreateUpdateInterface.php
@@ -0,0 +1,27 @@
+<?php
+
+/**
+ * The list can create and update records.
+ *
+ */
+interface ListCreateUpdateInterface
+{
+
+    /**
+     * Create an application record into list.
+     *
+     * @param type $data
+     *
+     * @throws Exception
+     */
+    public function create($data);
+
+    /**
+     * Update an application record from list.
+     *
+     * @param type $data
+     *
+     * @throws Exception
+     */
+    public function update($data);
+}
diff --git a/workflow/engine/classes/ListInterface.php b/workflow/engine/classes/ListInterface.php
new file mode 100644
index 000000000..47c5a2393
--- /dev/null
+++ b/workflow/engine/classes/ListInterface.php
@@ -0,0 +1,42 @@
+<?php
+
+/**
+ * Interface for list of cases
+ *
+ */
+interface ListInterface extends ListCreateUpdateInterface, ListAdditionalColumnsInterface, ListUserDisplayFormatInterface
+{
+
+    /**
+     * This function add restriction in the query related to the filters.
+     *
+     * @param Criteria $criteria , must be contain only select of columns
+     * @param array $filters
+     * @param array $additionalColumns information about the new columns related to custom cases list
+     *
+     * @throws PropelException
+     */
+    public function loadFilters(&$criteria, $filters);
+
+    /**
+     * This function get the information in the corresponding cases list.
+     *
+     * @param string $usr_uid , must be show cases related to this user
+     * @param array $filters for apply in the result
+     * @param callable $callbackRecord
+     *
+     * @return array $data
+     * @throws PropelException
+     */
+    public function loadList($usr_uid, $filters = [], callable $callbackRecord = null);
+
+    /**
+     * Returns the number of cases of a user.
+     *
+     * @param string $usrUid
+     * @param array $filters
+     *
+     * @return int
+     */
+    public function getCountList($usrUid, $filters = []);
+}
diff --git a/workflow/engine/classes/ListUserDisplayFormatInterface.php b/workflow/engine/classes/ListUserDisplayFormatInterface.php
new file mode 100644
index 000000000..039f9f2e8
--- /dev/null
+++ b/workflow/engine/classes/ListUserDisplayFormatInterface.php
@@ -0,0 +1,24 @@
+<?php
+
+/**
+ * The list implements user name formated.
+ *
+ */
+interface ListUserDisplayFormatInterface
+{
+
+    /**
+     * Get the $userDisplayFormat value.
+     *
+     * @return string
+     */
+    public function getUserDisplayFormat();
+
+    /**
+     * Set the value of $userDisplayFormat.
+     *
+     * @param string $v new value
+     * @return void
+     */
+    public function setUserDisplayFormat($v);
+}
diff --git a/workflow/engine/classes/model/ListBaseTrait.php b/workflow/engine/classes/model/ListBaseTrait.php
new file mode 100644
index 000000000..1cb867490
--- /dev/null
+++ b/workflow/engine/classes/model/ListBaseTrait.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * List basic methods
+ *
+ */
+trait ListBaseTrait
+{
+    private $additionalClassName = '';
+    private $userDisplayFormat = '';
+
+    /**
+     * Get the $additionalClassName value.
+     *
+     * @return string
+     */
+    public function getAdditionalClassName()
+    {
+        return $this->additionalClassName;
+    }
+
+    /**
+     * Set the value of $additionalClassName.
+     *
+     * @param string $v new value
+     * @return void
+     */
+    public function setAdditionalClassName($v)
+    {
+        $this->additionalClassName = $v;
+    }
+
+    /**
+     * Get the $userDisplayFormat value.
+     *
+     * @return string
+     */
+    public function getUserDisplayFormat()
+    {
+        return $this->userDisplayFormat;
+    }
+
+    /**
+     * Set the value of $userDisplayFormat.
+     *
+     * @param string $v new value
+     * @return void
+     */
+    public function setUserDisplayFormat($v)
+    {
+        $this->userDisplayFormat = $v;
+    }
+
+    /**
+     * Returns the number of cases by class and user.
+     *
+     * @param type $peerClass
+     * @param type $usrUid
+     * @param type $filters
+     *
+     * @return type
+     */
+    protected function getCountListFromPeer($peerClass, $usrUid, $filters = [])
+    {
+        $criteria = new Criteria();
+        $criteria->addSelectColumn('COUNT(*) AS TOTAL');
+        $criteria->add($peerClass::USR_UID, $usrUid, Criteria::EQUAL);
+        if (count($filters)) {
+            self::loadFilters($criteria, $filters);
+        }
+        $dataset = $peerClass::doSelectRS($criteria);
+        $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
+        $dataset->next();
+        $row = $dataset->getRow();
+        return (int) $row['TOTAL'];
+    }
+}
diff --git a/workflow/engine/classes/model/ListCanceled.php b/workflow/engine/classes/model/ListCanceled.php
index c01224f16..317f6feb8 100644
--- a/workflow/engine/classes/model/ListCanceled.php
+++ b/workflow/engine/classes/model/ListCanceled.php
@@ -15,8 +15,10 @@ require_once 'classes/model/om/BaseListCanceled.php';
  * @package    classes.model
  */
 // @codingStandardsIgnoreStart
-class ListCanceled extends BaseListCanceled
+class ListCanceled extends BaseListCanceled implements ListInterface
 {
+    use ListBaseTrait;
+
     // @codingStandardsIgnoreEnd
     /**
      * Create List Canceled Table
@@ -283,7 +285,7 @@ class ListCanceled extends BaseListCanceled
         }
     }
 
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null)
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null)
     {
         $resp = array();
         $criteria = new Criteria();
@@ -346,16 +348,7 @@ class ListCanceled extends BaseListCanceled
      */
     public function getCountList($usrUid, $filters = array())
     {
-        $criteria = new Criteria();
-        $criteria->addSelectColumn('COUNT(*) AS TOTAL');
-        $criteria->add(ListCanceledPeer::USR_UID, $usrUid, Criteria::EQUAL);
-        if (count($filters)) {
-            self::loadFilters($criteria, $filters);
-        }
-        $dataset = ListCanceledPeer::doSelectRS($criteria);
-        $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
-        $dataset->next();
-        $aRow = $dataset->getRow();
-        return (int)$aRow['TOTAL'];
+        return $this->getCountListFromPeer
+                (ListCanceledPeer::class, $usrUid, $filters);
     }
 } // ListCanceled
diff --git a/workflow/engine/classes/model/ListCompleted.php b/workflow/engine/classes/model/ListCompleted.php
index 1b31f63ac..d7c145657 100644
--- a/workflow/engine/classes/model/ListCompleted.php
+++ b/workflow/engine/classes/model/ListCompleted.php
@@ -15,8 +15,10 @@ require_once 'classes/model/om/BaseListCompleted.php';
  * @package    classes.model
  */
 // @codingStandardsIgnoreStart
-class ListCompleted extends BaseListCompleted
+class ListCompleted extends BaseListCompleted implements ListInterface
 {
+    use ListBaseTrait;
+
     // @codingStandardsIgnoreEnd
     /**
      * Create List Completed Table
@@ -271,7 +273,7 @@ class ListCompleted extends BaseListCompleted
         }
     }
 
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null)
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null)
     {
         $resp = array();
         $criteria = new Criteria();
@@ -324,23 +326,16 @@ class ListCompleted extends BaseListCompleted
     }
 
     /**
-     * Returns the number of cases of a user
+     * Returns the number of cases of a user.
+     *
      * @param $usrUid
      * @param array $filters
+     *
      * @return int
      */
     public function getCountList($usrUid, $filters = array())
     {
-        $criteria = new Criteria();
-        $criteria->addSelectColumn('COUNT(*) AS TOTAL');
-        $criteria->add(ListCompletedPeer::USR_UID, $usrUid, Criteria::EQUAL);
-        if (count($filters)) {
-            self::loadFilters($criteria, $filters);
-        }
-        $dataset = ListCompletedPeer::doSelectRS($criteria);
-        $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
-        $dataset->next();
-        $aRow = $dataset->getRow();
-        return (int)$aRow['TOTAL'];
+        return $this->getCountListFromPeer
+                (ListCompletedPeer::class, $usrUid, $filters);
     }
 } // ListCompleted
diff --git a/workflow/engine/classes/model/ListInbox.php b/workflow/engine/classes/model/ListInbox.php
index 47362ea9f..cc1e0bbff 100644
--- a/workflow/engine/classes/model/ListInbox.php
+++ b/workflow/engine/classes/model/ListInbox.php
@@ -15,52 +15,9 @@ use ProcessMaker\BusinessModel\Cases as BmCases;
  * @package    classes.model
  */
 
-class ListInbox extends BaseListInbox
+class ListInbox extends BaseListInbox implements ListInterface
 {
-    private $additionalClassName = '';
-    private $userDisplayFormat = '';
-
-    /**
-     * Get the $additionalClassName value.
-     *
-     * @return string
-     */
-    public function getAdditionalClassName()
-    {
-        return $this->additionalClassName;
-    }
-
-    /**
-     * Set the value of $additionalClassName.
-     *
-     * @param string $v new value
-     * @return void
-     */
-    public function setAdditionalClassName($v)
-    {
-        $this->additionalClassName = $v;
-    }
-
-    /**
-     * Get the $userDisplayFormat value.
-     *
-     * @return string
-     */
-    public function getUserDisplayFormat()
-    {
-        return $this->userDisplayFormat;
-    }
-
-    /**
-     * Set the value of $userDisplayFormat.
-     *
-     * @param string $v new value
-     * @return void
-     */
-    public function setUserDisplayFormat($v)
-    {
-        $this->userDisplayFormat = $v;
-    }
+    use ListBaseTrait;
 
     /**
      * Create List Inbox Table
@@ -569,7 +526,7 @@ class ListInbox extends BaseListInbox
      * @return array $data
      * @throws PropelException
      */
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null)
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null)
     {
         $pmTable = new PmTable();
         $list = isset($filters['action']) ? $filters['action'] : "";
@@ -713,7 +670,7 @@ class ListInbox extends BaseListInbox
         $dataset = ListInboxPeer::doSelectRS($criteria);
         $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
         $dataset->next();
-        $aRow = $dataset->getRow();
-        return (int)$aRow['TOTAL'];
+        $row = $dataset->getRow();
+        return (int) $row['TOTAL'];
     }
 }
diff --git a/workflow/engine/classes/model/ListMyInbox.php b/workflow/engine/classes/model/ListMyInbox.php
index 6a29e6c48..eb33112a8 100644
--- a/workflow/engine/classes/model/ListMyInbox.php
+++ b/workflow/engine/classes/model/ListMyInbox.php
@@ -15,8 +15,10 @@ require_once 'classes/model/om/BaseListMyInbox.php';
  * @package    classes.model
  */
 // @codingStandardsIgnoreStart
-class ListMyInbox extends BaseListMyInbox
+class ListMyInbox extends BaseListMyInbox implements ListInterface
 {
+    use ListBaseTrait;
+
     // @codingStandardsIgnoreEnd
     /**
      * Create List My Inbox Table
@@ -248,7 +250,7 @@ class ListMyInbox extends BaseListMyInbox
         }
     }
 
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null)
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null)
     {
         $criteria = new Criteria();
 
diff --git a/workflow/engine/classes/model/ListParticipatedHistory.php b/workflow/engine/classes/model/ListParticipatedHistory.php
index 804ee66d5..896c0927b 100644
--- a/workflow/engine/classes/model/ListParticipatedHistory.php
+++ b/workflow/engine/classes/model/ListParticipatedHistory.php
@@ -15,8 +15,10 @@ require_once 'classes/model/om/BaseListParticipatedHistory.php';
  * @package    classes.model
  */
 // @codingStandardsIgnoreStart
-class ListParticipatedHistory extends BaseListParticipatedHistory
+class ListParticipatedHistory extends BaseListParticipatedHistory implements ListInterface
 {
+    use ListBaseTrait;
+
     // @codingStandardsIgnoreEnd
     /**
      * Create List Participated History Table
@@ -203,7 +205,7 @@ class ListParticipatedHistory extends BaseListParticipatedHistory
         }
     }
 
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null)
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null)
     {
         $criteria = new Criteria();
 
diff --git a/workflow/engine/classes/model/ListParticipatedLast.php b/workflow/engine/classes/model/ListParticipatedLast.php
index 81d3ed331..587d4a21a 100644
--- a/workflow/engine/classes/model/ListParticipatedLast.php
+++ b/workflow/engine/classes/model/ListParticipatedLast.php
@@ -12,52 +12,9 @@ use ProcessMaker\BusinessModel\Cases as BmCases;
  * application requirements.  This class will only be generated as
  * long as it does not already exist in the output directory.
  */
-class ListParticipatedLast extends BaseListParticipatedLast
+class ListParticipatedLast extends BaseListParticipatedLast implements ListInterface
 {
-    private $additionalClassName = '';
-    private $userDisplayFormat = '';
-
-    /**
-     * Get the $additionalClassName value.
-     *
-     * @return string
-     */
-    public function getAdditionalClassName()
-    {
-        return $this->additionalClassName;
-    }
-
-    /**
-     * Set the value of $additionalClassName.
-     *
-     * @param string $v new value
-     * @return void
-     */
-    public function setAdditionalClassName($v)
-    {
-        $this->additionalClassName = $v;
-    }
-
-    /**
-     * Get the $userDisplayFormat value.
-     *
-     * @return string
-     */
-    public function getUserDisplayFormat()
-    {
-        return $this->userDisplayFormat;
-    }
-
-    /**
-     * Set the value of $userDisplayFormat.
-     *
-     * @param string $v new value
-     * @return void
-     */
-    public function setUserDisplayFormat($v)
-    {
-        $this->userDisplayFormat = $v;
-    }
+    use ListBaseTrait;
 
     /**
      * Create List Participated History Table.
@@ -410,7 +367,7 @@ class ListParticipatedLast extends BaseListParticipatedLast
      * @return array $data
      * @throws PropelException
      */
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null, $appUid = '')
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null, $appUid = '')
     {
         $pmTable = new PmTable();
         $criteria = $pmTable->addPMFieldsToList('sent');
@@ -554,18 +511,8 @@ class ListParticipatedLast extends BaseListParticipatedLast
      */
     public function getCountList($usrUid, $filters = array())
     {
-        $criteria = new Criteria();
-        $criteria->addSelectColumn('COUNT(*) AS TOTAL');
-        $criteria->add(ListParticipatedLastPeer::USR_UID, $usrUid, Criteria::EQUAL);
-        if (count($filters)) {
-            self::loadFilters($criteria, $filters);
-        }
-        $dataset = ListParticipatedLastPeer::doSelectRS($criteria);
-        $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
-        $dataset->next();
-        $aRow = $dataset->getRow();
-
-        return (int) $aRow['TOTAL'];
+        return $this->getCountListFromPeer
+                (ListParticipatedLastPeer::class, $usrUid, $filters);
     }
 
     /**
diff --git a/workflow/engine/classes/model/ListPaused.php b/workflow/engine/classes/model/ListPaused.php
index edaf5336c..d61b3963f 100644
--- a/workflow/engine/classes/model/ListPaused.php
+++ b/workflow/engine/classes/model/ListPaused.php
@@ -15,52 +15,9 @@ use ProcessMaker\BusinessModel\Cases as BmCases;
  * @package    classes.model
  */
 
-class ListPaused extends BaseListPaused
+class ListPaused extends BaseListPaused implements ListInterface
 {
-    private $additionalClassName = '';
-    private $userDisplayFormat = '';
-
-    /**
-     * Get the $additionalClassName value.
-     *
-     * @return string
-     */
-    public function getAdditionalClassName()
-    {
-        return $this->additionalClassName;
-    }
-
-    /**
-     * Set the value of $additionalClassName.
-     *
-     * @param string $v new value
-     * @return void
-     */
-    public function setAdditionalClassName($v)
-    {
-        $this->additionalClassName = $v;
-    }
-
-    /**
-     * Get the $userDisplayFormat value.
-     *
-     * @return string
-     */
-    public function getUserDisplayFormat()
-    {
-        return $this->userDisplayFormat;
-    }
-
-    /**
-     * Set the value of $userDisplayFormat.
-     *
-     * @param string $v new value
-     * @return void
-     */
-    public function setUserDisplayFormat($v)
-    {
-        $this->userDisplayFormat = $v;
-    }
+    use ListBaseTrait;
 
     /**
      * Create List Paused Table
@@ -326,7 +283,7 @@ class ListPaused extends BaseListPaused
      * @return array $data
      * @throws PropelException
      */
-    public function loadList($usr_uid, $filters = array(), $callbackRecord = null)
+    public function loadList($usr_uid, $filters = array(), callable $callbackRecord = null)
     {
         $resp = array();
         $pmTable = new PmTable();
@@ -417,16 +374,7 @@ class ListPaused extends BaseListPaused
      */
     public function getCountList($usrUid, $filters = array())
     {
-        $criteria = new Criteria();
-        $criteria->addSelectColumn('COUNT(*) AS TOTAL');
-        $criteria->add(ListPausedPeer::USR_UID, $usrUid, Criteria::EQUAL);
-        if (count($filters)) {
-            self::loadFilters($criteria, $filters);
-        }
-        $dataset = ListPausedPeer::doSelectRS($criteria);
-        $dataset->setFetchmode(ResultSet::FETCHMODE_ASSOC);
-        $dataset->next();
-        $aRow = $dataset->getRow();
-        return (int)$aRow['TOTAL'];
+        return $this->getCountListFromPeer
+                (ListPausedPeer::class, $usrUid, $filters);
     }
 } // ListPaused
diff --git a/workflow/engine/classes/model/ListUnassigned.php b/workflow/engine/classes/model/ListUnassigned.php
index abfe3284b..f34ebc9a8 100644
--- a/workflow/engine/classes/model/ListUnassigned.php
+++ b/workflow/engine/classes/model/ListUnassigned.php
@@ -15,9 +15,10 @@ require_once 'classes/model/om/BaseListUnassigned.php';
  * @package    classes.model
  */
 // @codingStandardsIgnoreStart
-class ListUnassigned extends BaseListUnassigned
+class ListUnassigned extends BaseListUnassigned implements ListInterface
 {
-    private $additionalClassName = '';
+    use ListBaseTrait;
+
     private $total = 0;
 
     /**
@@ -192,7 +193,7 @@ class ListUnassigned extends BaseListUnassigned
             } else {
                 //If we have additional tables configured in the custom cases list, prepare the variables for search
                 $casesList = new \ProcessMaker\BusinessModel\Cases();
-                $casesList->getSearchCriteriaListCases($criteria, __CLASS__ . 'Peer', $search, $this->additionalClassName, $additionalColumns);
+                $casesList->getSearchCriteriaListCases($criteria, __CLASS__ . 'Peer', $search, $this->getAdditionalClassName(), $additionalColumns);
             }
         }
 
@@ -228,7 +229,7 @@ class ListUnassigned extends BaseListUnassigned
     {
         $pmTable = new PmTable();
         $criteria = $pmTable->addPMFieldsToList('unassigned');
-        $this->additionalClassName = $pmTable->tableClassName;
+        $this->setAdditionalClassName($pmTable->tableClassName);
         $additionalColumns = $criteria->getSelectColumns();
 
         $criteria->addSelectColumn(ListUnassignedPeer::APP_UID);
@@ -260,8 +261,9 @@ class ListUnassigned extends BaseListUnassigned
             BasePeer::TYPE_FIELDNAME,
             empty($filters['sort']) ? "DEL_DELEGATE_DATE" : $filters['sort'],
             "DEL_DELEGATE_DATE",
-            $this->additionalClassName,
-            $additionalColumns
+            $this->getAdditionalClassName(),
+            $additionalColumns,
+            $this->getUserDisplayFormat()
         );
 
         $dir   = isset($filters['dir']) ? $filters['dir'] : "ASC";
@@ -269,10 +271,20 @@ class ListUnassigned extends BaseListUnassigned
         $limit = isset($filters['limit']) ? $filters['limit'] : "25";
         $paged = isset($filters['paged']) ? $filters['paged'] : 1;
         $count = isset($filters['count']) ? $filters['count'] : 1;
-        if ($dir == "DESC") {
-            $criteria->addDescendingOrderByColumn($sort);
+        if (is_array($sort) && count($sort) > 0) {
+            foreach ($sort as $key) {
+                if ($dir == 'DESC') {
+                    $criteria->addDescendingOrderByColumn($key);
+                } else {
+                    $criteria->addAscendingOrderByColumn($key);
+                }
+            }
         } else {
-            $criteria->addAscendingOrderByColumn($sort);
+            if ($dir == 'DESC') {
+                $criteria->addDescendingOrderByColumn($sort);
+            } else {
+                $criteria->addAscendingOrderByColumn($sort);
+            }
         }
         $this->total = ListUnassignedPeer::doCount($criteria);
         if ($paged == 1) {
diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Cases.php b/workflow/engine/src/ProcessMaker/BusinessModel/Cases.php
index 6ffbfffe6..f2a9759d4 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Cases.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Cases.php
@@ -3582,6 +3582,9 @@ class Cases
                     break;
                 case 'USR_UID':
                     $columnSort = $this->buildOrderFieldFormatted($columnsList, $userDisplayFormat, 'DEL_CURRENT_');
+                    if (empty($columnSort)) {
+                        $columnSort = $this->buildOrderFieldFormatted($columnsList, $userDisplayFormat, '', false);
+                    }
                     break;
                 default:
                     $columnSort  = $listPeer::TABLE_NAME . '.' . $sort;
@@ -3612,13 +3615,13 @@ class Cases
      * 
      * @return array $columnSort, columns  by apply the sql command ORDER BY
      */
-    public function buildOrderFieldFormatted($columnsList, $format, $prefix = 'DEL_PREVIOUS_')
+    public function buildOrderFieldFormatted($columnsList, $format, $prefix = 'DEL_PREVIOUS_', $validate = true)
     {
         $columnSort = [];
 
-        if (in_array($prefix . 'USR_FIRSTNAME', $columnsList) &&
+        if (!$validate || (in_array($prefix . 'USR_FIRSTNAME', $columnsList) &&
             in_array($prefix . 'USR_LASTNAME', $columnsList) &&
-            in_array($prefix . 'USR_USERNAME', $columnsList)
+            in_array($prefix . 'USR_USERNAME', $columnsList))
         ) {
             switch ($format) {
                 case '@firstName @lastName':