diff --git a/features/backend/project_user_resources/project_user.feature b/features/backend/project_user_resources/project_user.feature
new file mode 100644
index 000000000..dba737a98
--- /dev/null
+++ b/features/backend/project_user_resources/project_user.feature
@@ -0,0 +1,49 @@
+@ProcessMakerMichelangelo @RestAPI
+Feature: Project User Resources
+
+  Background:
+    Given that I have a valid access_token
+
+  Scenario: Get a list of users of a project
+    Given I request "project/1265557095225ff5c688f46031700471/users"
+    Then the response status code should be 200
+    And the response charset is "UTF-8"
+    And the content type is "application/json"
+    And the type is "array"
+
+  Scenario: Get a list of starting task of a project
+  Given I request "project/1265557095225ff5c688f46031700471/starting-tasks"
+    Then the response status code should be 200
+    And the response charset is "UTF-8"
+    And the content type is "application/json"
+    And the type is "array"
+  
+  Scenario: Get a list of start task of a user
+  Given I request "project/1265557095225ff5c688f46031700471/user/00000000000000000000000000000001/starting-tasks"
+    Then the response status code should be 200
+    And the response charset is "UTF-8"
+    And the content type is "application/json"
+    And the type is "array"
+
+  Scenario Outline: Verify if a user can start a task
+      Given POST this data:
+      """
+      {
+      "act_uid": "<act_uid>",
+      "username": "<username>",
+      "password": "<password>"
+      }
+      """
+      And I request "project/1265557095225ff5c688f46031700471/ws/user/can-start-task"
+      Then the response status code should be <http_code>
+      And the response charset is "UTF-8"
+      And the content type is "application/json"
+      And the type is "<type>"
+
+    Examples:
+    | test_description      | act_uid                          | username | password | http_code | type   |
+    | error username        | 1352844695225ff5fe54de2005407079 | adm      | admin    | 400       | string |
+    | error password        | 1352844695225ff5fe54de2005407079 | admin    | adm      | 400       | string |
+    | short activity        | 1352844695225ff5fe54de20         | admin    | admin    | 400       | string |
+    | error activity        | 225ff5fe54de20054070791352844695 | admin    | admin    | 400       | string |
+    | all ok                | 1352844695225ff5fe54de2005407079 | admin    | admin    | 200       | array  |
diff --git a/workflow/engine/src/BusinessModel/ProjectUser.php b/workflow/engine/src/BusinessModel/ProjectUser.php
index d948022ea..9fe785bf0 100644
--- a/workflow/engine/src/BusinessModel/ProjectUser.php
+++ b/workflow/engine/src/BusinessModel/ProjectUser.php
@@ -223,7 +223,7 @@ class ProjectUser
                     $oCriteria->add( \UsersPeer::USR_USERNAME, $sWS_USER );
                     $userIsAssigned = \GroupUserPeer::doCount( $oCriteria );
                     if (! ($userIsAssigned >= 1)) {
-                        $messageCode = "The User `" . $sWS_USER . "` doesn't have the activity `" . $sTASKS . "` assigned";
+                        throw (new \Exception( "The User `" . $sWS_USER . "` doesn't have the activity `" . $sTASKS . "` assigned"));
                     }
                 }
                 $oDataset = \TaskUserPeer::doSelectRS($oCriteria);
@@ -237,7 +237,7 @@ class ProjectUser
                     $oDataset->next();
                 }
             } else {
-                $messageCode = $result->message;
+                throw (new \Exception( $result->message));
             }
             return $messageCode;
         } catch (Exception $e) {
diff --git a/workflow/engine/src/Services/Api/ProcessMaker/Project/ProjectUsers.php b/workflow/engine/src/Services/Api/ProcessMaker/Project/ProjectUsers.php
index 2c1860d8d..2358892cf 100644
--- a/workflow/engine/src/Services/Api/ProcessMaker/Project/ProjectUsers.php
+++ b/workflow/engine/src/Services/Api/ProcessMaker/Project/ProjectUsers.php
@@ -75,7 +75,7 @@ class ProjectUsers extends Api
      *
      * @url POST /:prjUid/ws/user/can-start-task
      */
-    public function doGetProjectWsUserCanStartTask($prjUid, wsUserCanStartTaskStructure $request_data =  null)
+    public function doPostProjectWsUserCanStartTask($prjUid, wsUserCanStartTaskStructure $request_data =  null)
     {
         try {
             $request_data = (array)($request_data);