diff --git a/workflow/engine/src/ProcessMaker/BusinessModel/Light.php b/workflow/engine/src/ProcessMaker/BusinessModel/Light.php
index 6cc6e1975..f8b476545 100644
--- a/workflow/engine/src/ProcessMaker/BusinessModel/Light.php
+++ b/workflow/engine/src/ProcessMaker/BusinessModel/Light.php
@@ -670,4 +670,114 @@ class Light
 //        $G_PUBLISH->RenderContent();
         return $Fields;
     }
+
+    /**
+     * first step for upload file
+     * create uid app_document for upload file
+     *
+     * @param $userUid
+     * @param $Fields
+     * @param $type
+     * @throws \Exception
+     */
+    public function postUidUploadFiles($userUid, $app_uid, $request_data)
+    {
+        $response = array();
+        if (count( $request_data ) > 0) {
+            foreach ($request_data as $k => $file) {
+                $indocUid = null;
+                $fieldName = null;
+                $oCase = new \Cases();
+                $DEL_INDEX = $oCase->getCurrentDelegation( $app_uid, $userUid );
+
+                $aFields = array (
+                    "APP_UID"             => $app_uid,
+                    "DEL_INDEX"           => $DEL_INDEX,
+                    "USR_UID"             => $userUid,
+                    "DOC_UID"             => - 1,
+                    "APP_DOC_TYPE"        => "ATTACHED",
+                    "APP_DOC_CREATE_DATE" => date( "Y-m-d H:i:s" ),
+                    "APP_DOC_COMMENT"     => "",
+                    "APP_DOC_TITLE"       => "",
+                    "APP_DOC_FILENAME"    => $file['name'],
+                    "APP_DOC_FIELDNAME"   => $fieldName
+                );
+
+                $oAppDocument = new \AppDocument();
+                $oAppDocument->create( $aFields );
+                $response[$k]['docVersion'] = $iDocVersion = $oAppDocument->getDocVersion();
+                $response[$k]['appDocUid'] =   $sAppDocUid = $oAppDocument->getAppDocUid();
+            }
+        }
+        return $response;
+    }
+
+    /**
+     * second step for upload file
+     * upload file in foler app_uid
+     *
+     * @param $userUid
+     * @param $Fields
+     * @param $type
+     * @throws \Exception
+     */
+    public function documentUploadFiles($userUid, $app_uid, $app_doc_uid, $request_data)
+    {
+        if (isset( $_FILES["form"]["name"] ) && count( $_FILES["form"]["name"] ) > 0) {
+            $arrayField = array ();
+            $arrayFileName = array ();
+            $arrayFileTmpName = array ();
+            $arrayFileError = array ();
+            $i = 0;
+
+            foreach ($_FILES["form"]["name"] as $fieldIndex => $fieldValue) {
+                if (is_array( $fieldValue )) {
+                    foreach ($fieldValue as $index => $value) {
+                        if (is_array( $value )) {
+                            foreach ($value as $grdFieldIndex => $grdFieldValue) {
+                                $arrayField[$i]["grdName"] = $fieldIndex;
+                                $arrayField[$i]["grdFieldName"] = $grdFieldIndex;
+                                $arrayField[$i]["index"] = $index;
+
+                                $arrayFileName[$i] = $_FILES["form"]["name"][$fieldIndex][$index][$grdFieldIndex];
+                                $arrayFileTmpName[$i] = $_FILES["form"]["tmp_name"][$fieldIndex][$index][$grdFieldIndex];
+                                $arrayFileError[$i] = $_FILES["form"]["error"][$fieldIndex][$index][$grdFieldIndex];
+                                $i = $i + 1;
+                            }
+                        }
+                    }
+                } else {
+                    $arrayField[$i] = $fieldIndex;
+
+                    $arrayFileName[$i] = $_FILES["form"]["name"][$fieldIndex];
+                    $arrayFileTmpName[$i] = $_FILES["form"]["tmp_name"][$fieldIndex];
+                    $arrayFileError[$i] = $_FILES["form"]["error"][$fieldIndex];
+                    $i = $i + 1;
+                }
+            }
+            if (count( $arrayField ) > 0) {
+                for ($i = 0; $i <= count( $arrayField ) - 1; $i ++) {
+                    if ($arrayFileError[$i] == 0) {
+                        $indocUid = null;
+                        $fieldName = null;
+                        $fileSizeByField = 0;
+
+                        $oAppDocument = new \AppDocument();
+                        $aAux = $oAppDocument->load($app_doc_uid);
+
+                        $iDocVersion = $oAppDocument->getDocVersion();
+                        $sAppDocUid = $oAppDocument->getAppDocUid();
+                        $aInfo = pathinfo( $oAppDocument->getAppDocFilename() );
+                        $sExtension = ((isset( $aInfo["extension"] )) ? $aInfo["extension"] : "");
+                        $pathUID = G::getPathFromUID($app_uid);
+                        $sPathName = PATH_DOCUMENT . $pathUID . PATH_SEP;
+                        $sFileName = $sAppDocUid . "_" . $iDocVersion . "." . $sExtension;
+                        G::uploadFile( $arrayFileTmpName[$i], $sPathName, $sFileName );
+                    }
+                }
+            }
+        }
+
+        return $response;
+    }
 }
diff --git a/workflow/engine/src/ProcessMaker/Services/Api/Light.php b/workflow/engine/src/ProcessMaker/Services/Api/Light.php
index 2c9ec13d5..1e3f7687d 100644
--- a/workflow/engine/src/ProcessMaker/Services/Api/Light.php
+++ b/workflow/engine/src/ProcessMaker/Services/Api/Light.php
@@ -752,14 +752,52 @@ class Light extends Api
             'task' => array(
                 'TAS_TITLE'         => 'taskTitle',
                 'CURRENT_USER'      => 'currentUser',
-                'DEL_DELEGATE_DATE' => 'delegateDate',
-                'DEL_INIT_DATE'     => 'initDate',
-                'DEL_TASK_DUE_DATE' => 'dueDate',
-                'DEL_FINISH_DATE'   => 'finishDate'
+                'DEL_DELEGATE_DATE' => 'delDelegateDate',
+                'DEL_INIT_DATE'     => 'delInitDate',
+                'DEL_TASK_DUE_DATE' => 'delDueDate',
+                'DEL_FINISH_DATE'   => 'delFinishDate'
             )
         );
 
         $response = $this->replaceFields($data, $structure);
         return $response;
     }
+
+    /**
+     * @url POST /case/:app_uid/upload
+     *
+     * @param $access
+     * @param $refresh
+     * @return mixed
+     */
+    public function uidUploadFiles($app_uid, $request_data)
+    {
+        try {
+            $userUid = $this->getUserId();
+            $oMobile = new \ProcessMaker\BusinessModel\Light();
+            $filesUids = $oMobile->postUidUploadFiles($userUid, $app_uid, $request_data);
+        } catch (\Exception $e) {
+            throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
+        }
+        return $filesUids;
+    }
+
+    /**
+     * @url POST /case/:app_uid/upload/:app_doc_uid
+     *
+     * @param $access
+     * @param $refresh
+     * @return mixed
+     */
+    public function documentUploadFiles($app_uid, $app_doc_uid, $request_data)
+    {
+        try {
+            $userUid = $this->getUserId();
+            $oMobile = new \ProcessMaker\BusinessModel\Light();
+            $filesUids = $oMobile->documentUploadFiles($userUid, $app_uid, $app_doc_uid, $request_data);
+        } catch (\Exception $e) {
+            throw (new RestException(Api::STAT_APP_EXCEPTION, $e->getMessage()));
+        }
+        return $filesUids;
+    }
 }