diff --git a/workflow/engine/classes/model/AdditionalTables.php b/workflow/engine/classes/model/AdditionalTables.php
index 8a74a2c26..b4682b6fd 100755
--- a/workflow/engine/classes/model/AdditionalTables.php
+++ b/workflow/engine/classes/model/AdditionalTables.php
@@ -436,7 +436,9 @@ class AdditionalTables extends BaseAdditionalTables
                     $newId = $oClass->getId();
                     $aFields = $oCaseKeyAuto->loadCase($_SESSION['APPLICATION']);
                     $aFields['APP_DATA'][$keyUIDAutoIncrement] = $newId;
-                    $_POST['form'][$keyUIDAutoIncrement] = $newId;
+                    if (isset($_POST['form'])) {
+                        $_POST['form'][$keyUIDAutoIncrement] = $newId;    
+                    }
                     $oCaseKeyAuto->updateCase($_SESSION['APPLICATION'], $aFields);
                 }
             }