diff --git a/config/zentaopms.php b/config/zentaopms.php
index edbde172cb..ddd9ae1197 100644
--- a/config/zentaopms.php
+++ b/config/zentaopms.php
@@ -592,6 +592,7 @@ define('TABLE_WORKFLOWREPORT',         '`' . $config->db->prefix . 'workflowrepo
 define('TABLE_WORKFLOWRULE',           '`' . $config->db->prefix . 'workflowrule`');
 define('TABLE_WORKFLOWSQL',            '`' . $config->db->prefix . 'workflowsql`');
 define('TABLE_WORKFLOWVERSION',        '`' . $config->db->prefix . 'workflowversion`');
+define('TABLE_WORKFLOWUI',             '`' . $config->db->prefix . 'workflowui`');
 define('TABLE_ZOUTPUT',                '`' . $config->db->prefix . 'zoutput`');
 
 define('TABLE_METRIC',        '`' . $config->db->prefix . 'metric`');
diff --git a/module/upgrade/config/upgradeflow.php b/module/upgrade/config/upgradeflow.php
index e5a6598162..d1636bb115 100644
--- a/module/upgrade/config/upgradeflow.php
+++ b/module/upgrade/config/upgradeflow.php
@@ -102,6 +102,7 @@ $config->upgrade->execFlow['20_1_1']      = array('functions' => 'syncActivityAn
 $config->upgrade->execFlow['20_3_0']      = array('functions' => 'importBuildinWorkflow,addFlowFields,processProjectRoadmapsByCharter', 'params' => array('importBuildinWorkflow' => array('or'), 'addFlowFields' => array('biz10.2')));
 $config->upgrade->execFlow['20_4']        = array('functions' => 'createDefaultDoclibSpace,updateStoryVerifiedDate,xuanNotifyJitsiConference', 'xxsqls' => "$appRoot/db/upgradexuanxuan7.3.sql,$appRoot/db/upgradexuanxuan9.0.sql");
 $config->upgrade->execFlow['20_5']        = array('functions' => 'fixWorkflowFieldOptions');
+$config->upgrade->execFlow['20_6']        = array('functions' => 'appendFlowFieldsForBelong');
 
 if(!empty($config->isINT))
 {
diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index b215395185..464d20ce7a 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -9870,6 +9870,12 @@ class upgradeModel extends model
         return true;
     }
 
+    /**
+     * Append flow fields for belong.
+     *
+     * @access public
+     * @return void
+     */
     public function appendFlowFieldsForBelong()
     {
         $flows = $this->dao->select('*')->from(TABLE_WORKFLOW)->where('buildin')->eq('0')->fetchAll('id');