diff --git a/src/includes/class/class.LSrelation.php b/src/includes/class/class.LSrelation.php
index 71e4670b..8d8eb0a9 100644
--- a/src/includes/class/class.LSrelation.php
+++ b/src/includes/class/class.LSrelation.php
@@ -71,6 +71,9 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval mixed The configuration parameter value or default value if not set
    **/
   public function getConfig($param, $default=null, $cast=null) {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
     return LSconfig :: get($param, $default, $cast, $this -> config);
   }
 
@@ -85,6 +88,8 @@ class LSrelation extends LSlog_staticLoggerClass {
     switch ($key) {
       case 'name':
         return $this -> name;
+      case 'correctly_configured':
+        return boolval($this -> config);
       case 'LSobject':
       case 'linkAttribute':
       case 'linkAttributeValue':
@@ -257,6 +262,10 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval array|false An array of related objects (LSldapObject), of false in case of error
    */
   public function listRelatedObjects() {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
+
     // Load related object type
     if (!LSsession :: loadLSobject($this -> LSobject)) {
       LSerror :: addErrorCode(
@@ -320,6 +329,10 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval array List of value of the link attribute
    */
   public function getRelatedKeyValue() {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
+
     // Load related object type
     if (!LSsession :: loadLSobject($this -> LSobject)) {
       LSerror :: addErrorCode(
@@ -384,6 +397,10 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval boolean True if user can edit the relation with the specified object, false otherwise
    */
   public function canEditRelationWithObject(&$objRel) {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
+
     if (!$this -> canEdit()) return;
 
     // Use canEdit_function
@@ -432,6 +449,10 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval boolean True if relation removed, false otherwise
    */
   public function removeRelationWithObject(&$objRel) {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
+
     // Use remove_function
     if ($this -> remove_function) {
       if (method_exists($this -> LSobject, $this -> remove_function)) {
@@ -478,6 +499,10 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval boolean True if relation rename, false otherwise
    */
   public function renameRelationWithObject(&$objRel, $oldKeyValue) {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
+
     // Use rename_function
     if ($this -> rename_function) {
       if (method_exists($objRel,$this -> rename_function)) {
@@ -526,6 +551,10 @@ class LSrelation extends LSlog_staticLoggerClass {
    * @retval boolean True if relations updated, false otherwise
    */
   public function updateRelations($listDns) {
+    // Check relation is correctly configured
+    if (!$this -> correctly_configured)
+      return false;
+
     // Load related objects type
     if (!LSsession :: loadLSobject($this -> LSobject)) {
       LSerror :: addErrorCode(
@@ -653,6 +682,8 @@ class LSrelation extends LSlog_staticLoggerClass {
         'objectDn' => $object -> getDn(),
       );
       $relation = new LSrelation($object, $relationName);
+      if (!$relation -> correctly_configured)
+        continue;
 
       if ($relation -> canEdit()) {
         $return['actions'][] = array(
@@ -761,6 +792,10 @@ class LSrelation extends LSlog_staticLoggerClass {
     // Instanciate relation
     $relation = new LSrelation($object, $conf['relationName']);
 
+    // Check relation is correctly configured
+    if (!$relation -> correctly_configured)
+      return false;
+
     // Check user access to it relation
     if (!$relation -> canEdit()) {
       LSerror :: addErrorCode('LSsession_11');
diff --git a/src/includes/routes.php b/src/includes/routes.php
index 8ba69eba..64494ccc 100644
--- a/src/includes/routes.php
+++ b/src/includes/routes.php
@@ -855,14 +855,19 @@ function handle_LSobject_create($request) {
         if ($obj -> loadData(urldecode($_GET['relatedLSobjectDN']))) {
           if (LSrelation :: exists($_GET['relatedLSobject'], $_GET['LSrelation'])) {
             $relation = new LSrelation($obj, $_GET['LSrelation']);
-            $attr = $relation -> relatedEditableAttribute;
-            if (isset($object -> attrs[$attr])) {
-              $value = $relation -> getRelatedKeyValue();
-              if (is_array($value)) $value=$value[0];
-              $object -> attrs[$attr] -> data = array($value);
+            if ($relation -> correctly_configured) {
+              $attr = $relation -> relatedEditableAttribute;
+              if (isset($object -> attrs[$attr])) {
+                $value = $relation -> getRelatedKeyValue();
+                if (is_array($value)) $value=$value[0];
+                $object -> attrs[$attr] -> data = array($value);
+              }
+              else {
+                LSerror :: addErrorCode('LSrelation_06',array('relation' => $relation -> getName(),'LSobject' => $obj -> getType()));
+              }
             }
             else {
-              LSerror :: addErrorCode('LSrelation_06',array('relation' => $relation -> getName(),'LSobject' => $obj -> getType()));
+              LSlog :: warning("Relation '".$_GET['LSrelation']."' of object type '".$_GET['relatedLSobject']."' is not correctly configured.");
             }
           }
           else {