diff --git a/workflow/engine/src/BusinessModel/Cases/InputDocument.php b/workflow/engine/src/BusinessModel/Cases/InputDocument.php
index 745a79399..7a03f94e7 100644
--- a/workflow/engine/src/BusinessModel/Cases/InputDocument.php
+++ b/workflow/engine/src/BusinessModel/Cases/InputDocument.php
@@ -104,7 +104,7 @@ class InputDocument
         try {
             $oAppDocument = \AppDocumentPeer::retrieveByPK( $inputDocumentUid, 1 );
             if (is_null( $oAppDocument ) || $oAppDocument->getAppDocStatus() == 'DELETED') {
-                throw (new \Exception('This row doesn\'t exist!'));
+                throw (new \Exception('This input document with id: '.$inputDocumentUid.' doesn\'t exist!'));
             }
             \G::LoadClass('wsBase');
             $ws = new \wsBase();
diff --git a/workflow/engine/src/BusinessModel/Cases/OutputDocument.php b/workflow/engine/src/BusinessModel/Cases/OutputDocument.php
index 23e955d21..b1ac382bb 100644
--- a/workflow/engine/src/BusinessModel/Cases/OutputDocument.php
+++ b/workflow/engine/src/BusinessModel/Cases/OutputDocument.php
@@ -102,7 +102,7 @@ class OutputDocument
         try {
             $oAppDocument = \AppDocumentPeer::retrieveByPK( $applicationDocumentUid, 1 );
             if (is_null( $oAppDocument ) || $oAppDocument->getAppDocStatus() == 'DELETED') {
-                throw (new \Exception('This row doesn\'t exist!'));
+                throw (new \Exception('This output document with id: '.$applicationDocumentUid.' doesn\'t exist!'));
             }
             \G::LoadClass('wsBase');
             $ws = new \wsBase();