diff --git a/src/app/external/messageExchange/controllers/ReceiveMessageExchangeController.php b/src/app/external/messageExchange/controllers/ReceiveMessageExchangeController.php
index 4d9244dd57cb8a995d3b43a5b652970ff1201755..bfaafe45a40c2792a5a33530e27ad324e1e572e6 100755
--- a/src/app/external/messageExchange/controllers/ReceiveMessageExchangeController.php
+++ b/src/app/external/messageExchange/controllers/ReceiveMessageExchangeController.php
@@ -57,7 +57,7 @@ class ReceiveMessageExchangeController
         $res = $receiveMessage->receive($tmpPath, $tmpName, 'ArchiveTransfer');
 
         if ($res['status'] == 1) {
-            return $response->withStatus(400)->withJson(["errors" => _ERROR_RECEIVE_FAIL. ' ' . $res['content']]);
+            return $response->withStatus(400)->withJson(["errors" => 'Reception error : ' . $res['content']]);
         }
         self::$aComments[] = '['.date("d/m/Y H:i:s") . '] Pli numérique validé';
 
@@ -162,11 +162,11 @@ class ReceiveMessageExchangeController
         $tmpName  = 'tmp_file_' .$GLOBALS['userId']. '_ArchiveTransfer_' .rand(). '.' . $ext;
 
         if (!in_array(strtolower($ext), ['zip', 'tar'])) {
-            return ["errors" => _WRONG_FILE_TYPE_M2M];
+            return ["errors" => 'Only zip file is allowed'];
         }
 
         if ($mimeType != "application/x-tar" && $mimeType != "application/zip" && $mimeType != "application/tar" && $mimeType != "application/x-gzip") {
-            return ['errors' => _WRONG_FILE_TYPE];
+            return ['errors' => 'Filetype is not allowed'];
         }
 
         $tmpPath = CoreConfigModel::getTmpPath();
@@ -337,7 +337,7 @@ class ReceiveMessageExchangeController
                 'recordId'  => $aArgs['resId'],
                 'eventType' => 'ADD',
                 'eventId'   => 'noteadd',
-                'info'       => _NOTES_ADDED
+                'info'       => _NOTE_ADDED
             ]);
 
             $countNote++;
diff --git a/src/app/external/messageExchange/controllers/SendMessageExchangeController.php b/src/app/external/messageExchange/controllers/SendMessageExchangeController.php
index a5d429ed5622f7311c2db653de86f67edc3794f3..4b16892b65af05bc2dcb762ed1a5602e8004bcb9 100755
--- a/src/app/external/messageExchange/controllers/SendMessageExchangeController.php
+++ b/src/app/external/messageExchange/controllers/SendMessageExchangeController.php
@@ -281,7 +281,7 @@ class SendMessageExchangeController
         }
 
         if (empty($aArgs['object'])) {
-            array_push($errors, _EMAIL_OBJECT . ' ' . _IS_EMPTY);
+            array_push($errors, 'Body object is empty');
         }
 
         if (empty($aArgs['joinFile']) && empty($aArgs['joinAttachment']) && empty($aArgs['mainExchangeDoc'])) {
@@ -289,11 +289,11 @@ class SendMessageExchangeController
         }
 
         if (empty($aArgs['contacts'])) {
-            array_push($errors, _NO_RECIPIENT);
+            array_push($errors, 'body contacts is empty');
         }
 
         if (empty($aArgs['senderEmail'])) {
-            array_push($errors, _NO_SENDER);
+            array_push($errors, 'Body senderEmail is empty');
         }
 
         return $errors;
diff --git a/src/core/lang/lang-fr.php b/src/core/lang/lang-fr.php
index a1f4740d8e6169e36a7af84b6eadcfb175394564..da47181f8bcc9ad3b3c545e9eb2302487f5f5def 100755
--- a/src/core/lang/lang-fr.php
+++ b/src/core/lang/lang-fr.php
@@ -140,7 +140,7 @@ define('_GO_ON_VACATION', 'se met en absence');
 define('_BACK_FROM_VACATION', 'de retour de son absence');
 define('_DOC_DISPLAYING', 'Visualisation du document');
 define('_DOC_ADDED', 'Courrier créé');
-define('_DOC_UPDATED', 'Métadonnées des courriers modifiées');
+define('_DOC_UPDATED', 'Métadonnées du courrier modifiées');
 define('_ATTACHMENT_DELETED', 'Pièce-jointe supprimée');
 define('_FILE_UPDATED', 'Fichier modifié');
 define('_ATTACHMENT_ADDED', 'Pièce jointe ajoutée');
@@ -457,6 +457,10 @@ define("_AVIS_CIRCUIT_DELETED", "Circuit d'avis supprimé");
 define("_COMMUNICATION_MEANS_VALIDATOR", "Le moyen de communication doit être une uri ou un courriel");
 define("_EXTERNALID_M2M_VALIDATOR", "L'identifiant Maarch2Maarch doit être au format SIRET/entityId");
 
+define("_NUMERIC_PACKAGE_ADDED", "Pli numérique ajouté");
+define('_ON_DOC_NUM', ' sur le document n°');
+define("_NUMERIC_PACKAGE_IMPORTED", "Pli numérique importé");
+
 define("_ACKNOWLEDGEMENT_RECEIPT", "Accusé de réception");
 define("_CREATED_BY", "Créé par");
 define("_SENT_DATE", "Envoyé le");