diff --git a/workflow/engine/src/Services/Api/ProcessMaker/Project/Activity.php b/workflow/engine/src/Services/Api/ProcessMaker/Project/Activity.php
index ca6837cc2..3da4d6da9 100644
--- a/workflow/engine/src/Services/Api/ProcessMaker/Project/Activity.php
+++ b/workflow/engine/src/Services/Api/ProcessMaker/Project/Activity.php
@@ -12,9 +12,10 @@ use \Luracast\Restler\RestException;
 class Activity extends Api
 {
     /**
-     * @param string $projectUid
-     * @param string $activityUid
+     * @param string $projectUid {@min 32} {@max 32}
+     * @param string $activityUid {@min 32} {@max 32}
      * @param string $filter {@choice definition,,properties}
+     *
      * @url GET /:projectUid/activity/:activityUid
      */
     public function doGetProjectActivity($projectUid, $activityUid, $filter = '')
@@ -58,9 +59,13 @@ class Activity extends Api
 
 
     /**
+     * @param string $projectUid {@min 32} {@max 32}
+     * @param string $activityUid {@min 32} {@max 32}
+     * @param ActivityPropertiesStructure $properties {@from body}
+     *
      * @url PUT /:projectUid/activity/:activityUid
      */
-    public function doPutProjectActivity($projectUid, $activityUid, $request_data = array())
+    public function doPutProjectActivity($projectUid, $activityUid, ActivityPropertiesStructure $properties, $request_data =  array())
     {
         try {
             $task = new \BusinessModel\Task();
@@ -73,6 +78,9 @@ class Activity extends Api
 
 
     /**
+     * @param string $projectUid {@min 32} {@max 32}
+     * @param string $activityUid {@min 32} {@max 32}
+     *
      * @url DELETE /:projectUid/activity/:activityUid
      */
     public function doDeleteProjectActivity($projectUid, $activityUid)
@@ -118,3 +126,125 @@ class Activity extends Api
     }
 }
 
+
+class ActivityPropertiesStructure
+{
+    /**
+     * @var string {@from body} {@min 1} {@max 200}
+     */
+    public $tas_title;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_description;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_priority_variable;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_derivation_screen_tpl;
+
+    /**
+     * @var string {@from body} {@choice TRUE,FALSE}
+     */
+    public $tas_start;
+
+    /**
+     * @var string {@from body} {@choice BALANCED,MANUAL,EVALUATE,REPORT_TO,SELF_SERVICE,SELF_SERVICE_EVALUATE}
+     */
+    public $tas_assign_type;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_assign_variable;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_group_variable;
+
+    public $tas_selfservice_time;
+
+    /**
+     * @var int {@from body} {@choice 1,0}
+     */
+    public $tas_selfservice_timeout;
+
+    /**
+     * @var string {@from body} {@choice DAYS,,HOURS}
+     */
+    public $tas_selfservice_time_unit;
+
+    /**
+     * @var string {@from body} {@min 0} {@max 32}
+     */
+    public $tas_selfservice_trigger_uid;
+
+    /**
+     * @var string {@from body} {@choice TRUE,FALSE}
+     */
+    public $tas_transfer_fly;
+
+    /**
+     * @var int {@from body}
+     */
+    public $tas_duration;
+
+    /**
+     * @var string {@from body} {@choice DAYS,HOURS}
+     */
+    public $tas_timeunit;
+
+    public $tas_type_day;
+
+    /**
+     * @var string {@from body} {@min 0} {@max 32}
+     */
+    public $tas_calendar;
+
+    /**
+     * @var string {@from body} {@choice NORMAL,ADHOC}
+     */
+    public $tas_type;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_def_title;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_def_description;
+
+    /**
+     * @var string {@from body} {@choice TRUE,FALSE}
+     */
+    public $tas_send_last_email;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_def_subject_message;
+
+    /**
+     * @var string {@from body} {@choice template,text}
+     */
+    public $tas_def_message_type;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_def_message;
+
+    /**
+     * @var string {@from body}
+     */
+    public $tas_def_message_template;
+}