diff --git a/doc/conf/LSobject/ioFormat.docbook b/doc/conf/LSobject/ioFormat.docbook
index 6482b7a5..f85a0bf6 100644
--- a/doc/conf/LSobject/ioFormat.docbook
+++ b/doc/conf/LSobject/ioFormat.docbook
@@ -43,7 +43,9 @@ création du type d'&LSobject;. En conséquence :
         return array([...]);
       },
       [...]
-    )
+    ),
+    'before_import' => array('function1', 'function2'),
+    'after_import' => 'function3',
   ),
   [...]
 );]]>
@@ -100,6 +102,24 @@ création du type d'&LSobject;. En conséquence :
   </listitem>
 </varlistentry>
 
+<varlistentry>
+  <term>before_import</term>
+  <listitem>
+    <simpara>Chaîne de caractères (ou tableau de chaîne de caractères) correspondant
+    au nom d'une ou plusieurs fonctions qui seront exécutées avant chaque import.
+    <link linkend="config-LSobject-ioFormat-triggers">Voir la section concernée</link></simpara>
+  </listitem>
+</varlistentry>
+
+<varlistentry>
+  <term>after_import</term>
+  <listitem>
+    <simpara>Chaîne de caractères (ou tableau de chaîne de caractères) correspondant
+    au nom d'une ou plusieurs fonctions qui seront exécutées après chaque import.
+    <link linkend="config-LSobject-ioFormat-triggers">Voir la section concernée</link></simpara>
+  </listitem>
+</varlistentry>
+
 </variablelist>
 </para>
 
@@ -187,4 +207,125 @@ création du type d'&LSobject;. En conséquence :
 
 </sect3>
 
+<sect3 id="config-LSobject-ioFormat-triggers">
+  <title>Déclencheurs</title>
+  <para>Cette section décrit la manière de paramétrer des déclencheurs afin que
+  &LdapSaisie; exécute durant ses processus, et à des moments bien précis des
+  traitements d'un &ioFormat;, des fonctions que vous pourrez développer vous
+  même. De plus, le résultat de l'exécution de vos fonctions pourra influer
+  sur le déroulement des processus.</para>
+
+  <para>Actuellement, les évenements suivant sont gérés :
+
+<informaltable>
+ <tgroup cols="3"> <!-- on décrit le nombre de colonnes -->
+   <thead> <!-- on passe au "header" du tableau -->
+     <row>
+       <entry>Nom</entry>
+       <entry>Description</entry>
+       <entry>Bloquant</entry>
+     </row>
+   </thead>
+   <tbody> <!-- et on remplit les lignes -->
+     <row>
+       <entry><literal>before_import</literal></entry>
+       <entry><simpara>Avant l'import.</simpara></entry>
+       <entry><simpara>Oui</simpara></entry>
+     </row>
+     <row>
+       <entry><literal>after_import</literal></entry>
+       <entry><simpara>Après l'import'.</simpara></entry>
+       <entry><simpara>Non</simpara></entry>
+     </row>
+   </tbody>
+ </tgroup>
+</informaltable>
+<note><simpara>Si un événement est dit <emphasis>bloquant</emphasis>, lors de
+l'exécution des actions liées, si une des fonctions retourne <literal>false
+</literal>, le processus s'arrêtera.</simpara></note>
+  </para>
+  <sect4 id="config-LSobject-ioFormat-triggers-config">
+    <title>Configuration</title>
+    <para>La configuration des déclencheurs se fait dans la définition des types
+    d'&ioFormat;. Par exemple, pour définir les fonctions à exécuter après
+    l'import des LSobjects de type <emphasis>LSpeople</emphasis> avec son LSioFormat <emphasis>
+    mycsv</emphasis>, c'est à dire lors de leur évènement <literal>after_import</literal>, il faut
+    définir la variable suivante :
+    <programlisting linenumbering="unnumbered"><![CDATA[$GLOBALS['LSobjects']['LSpeople']['ioFormat']['mycsv']['after_import']]]></programlisting>
+    Cette variable peut contenir soit une chaine de caractères correspondant au
+    nom de la fonction à exécuter, soit un tableau de chaînes de caractères
+    correspondant aux noms des fonctions à exécuter. Il est également possible de mettre ici directement
+    des <ulink url='https://www.php.net/manual/fr/functions.anonymous.php'>fonctions anonymes</ulink>.
+    </para>
+  </sect4>
+  <sect4 id="config-LSobject-ioFormat-triggers-writing">
+    <title>Ecriture d'une fonction</title>
+    <para>Une fonction exécutée par un déclencheur d'un ioFormat se déclare de la
+    manière suivante :
+    <programlisting linenumbering="unnumbered"><![CDATA[
+/*
+ * Ma fonction à exécuter lors de l'evenement [event]
+ *
+ * Paramètres :
+ *     - $ioFormat : Le LSioFormat sur lequel l'évènement survient
+ *     - $data : Les données de contexte de l'évènement
+ *
+ * Valeurs retournées :
+ *     - True : Tout s'est bien passé
+ *     - False : Une erreur est survenue ou la fonction souhaite bloquer le
+ *               processus lors d'un évènement bloquant.
+ */
+function maFonction (&$ioFormat, &$data) {
+
+  // Actions
+
+}
+    ]]></programlisting>
+Cette fonction doit accepter deux paramètres, le LSioFormat sur lequel l'évènement survient et un
+tableau des données contextuelles de l'évènement. Elle doit par ailleurs retourner
+<literal>True</literal> si tout s'est bien passé ou <literal>False</literal> en cas de problème.
+Dans le cas d'un événement bloquant, si la fonction retourne <literal>False</literal>, le processus
+est arrêté.</para>
+
+<para>Les données contextuelles de l'évènement, passées en paramètre, pourront dépendre du contexte
+et de l'évènement déclencheur, mais pour les moments, il s'agit toujours d'un tableau telque décrit
+ci-dessous :
+<programlisting linenumbering="unnumbered"><![CDATA[array(
+  'input_file' => "[/path/of/import.file]",
+  'updateIfExists' => [boolean],
+  'justTry' => [boolean],
+  'objectsData' => array(
+    [Données des objets chargés depuis le fichier d'import]
+  ),
+  'return' => array(
+    'success' => [boolean],
+    'LSobject' => "[nom du type d'LSobject]",
+    'ioFormat' => "[nom du type d'ioFormat]",
+    'updateIfExists' => [boolean],
+    'justTry' => [boolean],
+    'imported' => array([objets importés]),
+    'updated' => array([objets mis à jour]),
+    'errors' => array(
+      array(
+        'data' => [données de l'objet importé ayant déclenché l'erreur],
+        'errors' => array (
+          'globals' => array("Erreur 1", [...]),
+          'attrs' => array(
+            'attr1' => array("Erreur 1", [...]),
+            [...]
+          ),
+        ),
+      ),
+      [...]
+    ),
+  ),
+)]]></programlisting>
+<note><simpara>Les clés <literal>objectsData</literal> et <literal>return</literal> sont des références.
+En cas de modification, cela influencera respectivement sur les données utilisées pour l'import et
+sur le résultat de l'import tel qu'affiché dans l'interface.</simpara></note>
+</para>
+  </sect4>
+
+</sect3>
+
 </sect2>
diff --git a/src/conf/LSobjects/config.LSobjects.LSpeople.php b/src/conf/LSobjects/config.LSobjects.LSpeople.php
index b1f2e085..ee734333 100644
--- a/src/conf/LSobjects/config.LSobjects.LSpeople.php
+++ b/src/conf/LSobjects/config.LSobjects.LSpeople.php
@@ -85,6 +85,16 @@ $GLOBALS['LSobjects']['LSpeople'] = array (
           return array(strval(LS_SAMBA_INFINITY_TIME));
         },
       ),
+      'before_import' => function(&$ioFormat, &$data) {
+        LSsession::addInfo(htmlentities("$ioFormat: Before import test"));
+        return true;
+      },
+      'after_import' => array(
+        function(&$ioFormat, &$data) {
+          LSsession::addInfo(htmlentities("$ioFormat: After import test"));
+          return true;
+        },
+      ),
     ),
     'myfullcsv' => array (
       'label' => 'Complete CSV',
diff --git a/src/includes/class/class.LSio.php b/src/includes/class/class.LSio.php
index 8b6f48ef..645cd3d6 100644
--- a/src/includes/class/class.LSio.php
+++ b/src/includes/class/class.LSio.php
@@ -231,6 +231,23 @@ class LSio extends LSlog_staticLoggerClass {
     // with a minimum of 30 seconds
     set_time_limit((count($objectsData)>30?count($objectsData):30));
 
+    // Trigger before_import event
+    if (
+      !$ioFormat -> fireEvent(
+        'before_import',
+        array(
+          'input_file' => $input_file,
+          'updateIfExists' => $updateIfExists,
+          'justTry' => $justTry,
+          'objectsData' => &$objectsData,
+          'return' => &$return,
+        )
+      )
+    ) {
+      LSerror :: addErrorCode('LSio_08');
+      return $return;
+    }
+
     // Browse inputed objects
     foreach($objectsData as $objData) {
       $globalErrors = array();
@@ -332,6 +349,22 @@ class LSio extends LSlog_staticLoggerClass {
     }
     $return['errors'] = $objectsInError;
     $return['success'] = empty($objectsInError);
+
+    // Trigger after_import event
+    if (
+      !$ioFormat -> fireEvent(
+        'after_import',
+        array(
+          'input_file' => $input_file,
+          'updateIfExists' => $updateIfExists,
+          'justTry' => $justTry,
+          'objectsData' => &$objectsData,
+          'return' => &$return,
+        )
+      )
+    )
+      LSerror :: addErrorCode('LSio_09');
+
     return $return;
   }
 
@@ -708,6 +741,12 @@ ___("LSio: Fail to load objects's data to export from LDAP directory.")
 LSerror :: defineError('LSio_07',
 ___("LSio: Fail to export objects's data.")
 );
+LSerror :: defineError('LSio_08',
+___("LSio: An error occured running before import hooks. Stop the import.")
+);
+LSerror :: defineError('LSio_09',
+___("LSio: An error occured running after import hooks.")
+);
 
 // Defined CLI commands functions only on CLI context
 if (php_sapi_name() != 'cli')
diff --git a/src/includes/class/class.LSioFormat.php b/src/includes/class/class.LSioFormat.php
index 8fd0baaa..b64200a9 100644
--- a/src/includes/class/class.LSioFormat.php
+++ b/src/includes/class/class.LSioFormat.php
@@ -29,6 +29,18 @@ LSsession :: loadLSclass('LSlog_staticLoggerClass');
  */
 class LSioFormat extends LSlog_staticLoggerClass {
 
+  /**
+   * LSobject type name
+   * @var string
+   */
+  var $LSobject;
+
+  /**
+   * ioFormat name
+   * @var string
+   */
+  var $name;
+
   /**
    * Configuration of the IOformat
    * (LSobjects.<type>.ioFormat.<name>)
@@ -56,6 +68,8 @@ class LSioFormat extends LSlog_staticLoggerClass {
    * @return void
    **/
   public function __construct($LSobject, $ioFormat) {
+    $this -> LSobject = $LSobject;
+    $this -> name = $ioFormat;
     $conf = LSconfig::get('LSobjects.'.$LSobject.".ioFormat.".$ioFormat);
     if(is_array($conf)) {
       $this -> config = $conf;
@@ -165,6 +179,45 @@ class LSioFormat extends LSlog_staticLoggerClass {
     return $this -> driver -> exportObjectsData($objects_data, $stream);
   }
 
+  /**
+   * Trigger action to run to specified event
+   *
+   * @param string $event The event name
+   * @param string $evenData The event context data (optional, default: null)
+   *
+   * @return boolean True on success, False otherwise
+   */
+  public function fireEvent($event, $evenData=null) {
+    self :: log_debug(strval($this)." -> fireEvent($event)");
+    $return = true;
+    if(isset($this -> config[$event])) {
+      foreach(ensureIsArray($this -> config[$event]) as $func) {
+        if(is_callable($func)) {
+          self :: log_debug(strval($this)." -> fireEvent($event): run ".format_callable($func));
+          if(!call_user_func_array($func, array(&$this, &$evenData))) {
+            $return = false;
+          }
+        }
+        else {
+          self :: log_warning(strval($this)." -> fireEvent($event): function '".format_callable($func)."' doesn't exists.");
+          $return = false;
+        }
+      }
+    }
+    else
+      self :: log_trace(strval($this)." -> fireEvent($event): no configured trigger for this event.");
+    return $return;
+  }
+
+  /**
+   * Allow conversion of LSioFormat to string
+   *
+   * @return string The string representation of the LSioFormat
+   */
+  public function __toString() {
+    return "<LSioFormat ".$this -> name." on ".$this -> LSobject.">";
+  }
+
 }
 
 LSerror :: defineError('LSioFormat_01',
diff --git a/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.mo b/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.mo
index f7b2fe16..bbea337b 100644
Binary files a/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.mo and b/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.mo differ
diff --git a/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.po b/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.po
index 19d2e02c..1a7c1eff 100644
--- a/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.po
+++ b/src/lang/fr_FR.UTF8/LC_MESSAGES/ldapsaisie.po
@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: LdapSaisie\n"
 "Report-Msgid-Bugs-To: \n"
 "POT-Creation-Date: \n"
-"PO-Revision-Date: 2023-03-28 12:20+0200\n"
+"PO-Revision-Date: 2023-05-17 11:36+0200\n"
 "Last-Translator: Benjamin Renard <brenard@easter-eggs.com>\n"
 "Language-Team: LdapSaisie <ldapsaisie-users@lists.labs.libre-entreprise."
 "org>\n"
@@ -435,7 +435,7 @@ msgid "Show LdapSaisie modifications"
 msgstr "Voir les modifications d'LdapSaisie"
 
 #: includes/addons/LSaddons.accesslog.php:244
-#: includes/class/class.LSsession.php:1855 includes/routes.php:157
+#: includes/class/class.LSsession.php:1870 includes/routes.php:157
 #: includes/routes.php:470 templates/default/select.tpl:29
 msgid "Refresh"
 msgstr "Rafraîchir"
@@ -752,82 +752,94 @@ msgstr "Valeur invalide"
 msgid "LSformRule_%{type}: Parameter %{param} is not found."
 msgstr "LSformRule_%{type} : Le paramètre %{param} n'est pas défini."
 
-#: includes/class/class.LSio.php:244
+#: includes/class/class.LSio.php:261
 msgid "Failed to set post data on creation form."
 msgstr "Impossible de définir les données dans le formulaire de création."
 
-#: includes/class/class.LSio.php:250
+#: includes/class/class.LSio.php:267
 msgid "Error validating creation form."
 msgstr "Une erreur est survenue en validant le formulaire de création."
 
-#: includes/class/class.LSio.php:255
+#: includes/class/class.LSio.php:272
 msgid "Failed to validate object data."
 msgstr "Impossible de valider les données de l'objet."
 
-#: includes/class/class.LSio.php:262
+#: includes/class/class.LSio.php:279
 msgid "Failed to generate DN for this object."
 msgstr "Impossible de générer le DN de cet objet."
 
-#: includes/class/class.LSio.php:276
+#: includes/class/class.LSio.php:293
 msgid "Error creating object on LDAP server."
 msgstr "Une erreur est survenue en création cet objet dans l'annuaire LDAP."
 
-#: includes/class/class.LSio.php:282
+#: includes/class/class.LSio.php:299
 msgid "An object already exist on LDAP server with DN %{dn}."
 msgstr "Un objet existe déjà dans l'annuaire LDAP avec le DN %{dn}."
 
-#: includes/class/class.LSio.php:294
+#: includes/class/class.LSio.php:311
 msgid ""
 "Failed to load existing object %{dn} from LDAP server. Can't update object."
 msgstr ""
 "Impossible de charger l'objet existant %{dn} depuis l'annuaire LDAP. "
 "Impossible de mettre à jour cet objet."
 
-#: includes/class/class.LSio.php:303
+#: includes/class/class.LSio.php:320
 msgid "Failed to set post data on update form."
 msgstr "Impossible de définir les données dans le formulaire de mise à jour."
 
-#: includes/class/class.LSio.php:309
+#: includes/class/class.LSio.php:326
 msgid "Error validating update form."
 msgstr "Une erreur est survenue en validant le formulaire de mise à jour."
 
-#: includes/class/class.LSio.php:319
+#: includes/class/class.LSio.php:336
 msgid "Error updating object on LDAP server."
 msgstr ""
 "Une erreur est survenue en mettant à jour cet objet dans l'annuaire LDAP."
 
-#: includes/class/class.LSio.php:691
+#: includes/class/class.LSio.php:724
 msgid "LSio: Post data not found or not completed."
 msgstr "LSio : les données transmises sont introuvables ou incomplètes."
 
-#: includes/class/class.LSio.php:694
+#: includes/class/class.LSio.php:727
 msgid "LSio: object type invalid."
 msgstr "LSio : type d'objet invalide."
 
-#: includes/class/class.LSio.php:697
+#: includes/class/class.LSio.php:730
 msgid "LSio: input/output format %{format} invalid."
 msgstr "LSio : Le format d'entrée/sortie %{format} est invalide."
 
-#: includes/class/class.LSio.php:700
+#: includes/class/class.LSio.php:733
 msgid "LSio: Fail to initialize input/output driver."
 msgstr "LSio : Impossible d'initialiser le pilote d'entrée/sortie."
 
-#: includes/class/class.LSio.php:703
+#: includes/class/class.LSio.php:736
 msgid "LSio: Fail to load objects's data from input file."
 msgstr ""
 "LSio: Impossible de charger les données des objets depuis le fichier "
 "d'import."
 
-#: includes/class/class.LSio.php:706
+#: includes/class/class.LSio.php:739
 msgid "LSio: Fail to load objects's data to export from LDAP directory."
 msgstr ""
 "LSio: Impossible de charger les données des objets à exporter depuis "
 "l'annuaire LDAP."
 
-#: includes/class/class.LSio.php:709
+#: includes/class/class.LSio.php:742
 msgid "LSio: Fail to export objects's data."
 msgstr "LSio: Impossible d'exporter les données des objets."
 
+#: includes/class/class.LSio.php:745
+msgid "LSio: An error occured running before import hooks. Stop the import."
+msgstr ""
+"LSio : Une erreur est survenue durant l'exécution des déclencheurs d'avant "
+"import. Arrêt de l'import."
+
+#: includes/class/class.LSio.php:748
+msgid "LSio: An error occured running after import hooks."
+msgstr ""
+"LSio : Une erreur est survenue durant l'exécution des déclencheurs d'après "
+"import."
+
 #: includes/class/class.LSformElement_supannRessourceEtatDate.php:61
 msgid "Start date"
 msgstr "Date de début"
@@ -1499,40 +1511,40 @@ msgstr ""
 msgid "Clear"
 msgstr "Nettoyer"
 
-#: includes/class/class.LSsession.php:1640
+#: includes/class/class.LSsession.php:1655
 msgid "Connection"
 msgstr "Connexion"
 
-#: includes/class/class.LSsession.php:1660
+#: includes/class/class.LSsession.php:1675
 msgid "Recovery of your credentials"
 msgstr "Récupération de votre mot de passe"
 
-#: includes/class/class.LSsession.php:1669
+#: includes/class/class.LSsession.php:1684
 msgid "Please fill the identifier field to proceed recovery procedure"
 msgstr ""
 "Merci d'entrer votre identifiant pour poursuivre la procédure de récupération"
 
-#: includes/class/class.LSsession.php:1674
+#: includes/class/class.LSsession.php:1689
 msgid ""
 "An email has been sent to  %{mail}. Please follow the instructions on it."
 msgstr ""
 "Un e-mail vient de vous être envoyé à l'adresse %{mail}. Merci de suivre les "
 "indications qu'il contient."
 
-#: includes/class/class.LSsession.php:1683
+#: includes/class/class.LSsession.php:1698
 msgid "Your new password has been sent to %{mail}."
 msgstr "Votre nouveau mot de passe vous a été envoyé à l'adresse %{mail}."
 
-#: includes/class/class.LSsession.php:2945 templates/default/select.tpl:20
+#: includes/class/class.LSsession.php:2960 templates/default/select.tpl:20
 #: templates/default/recoverpassword.tpl:17 templates/default/login.tpl:16
 msgid "Level"
 msgstr "Niveau"
 
-#: includes/class/class.LSsession.php:3113
+#: includes/class/class.LSsession.php:3128
 msgid "LSsession : The constant '%{const}' is not defined."
 msgstr "LSsession : La constante '%{const}' n'est pas définie."
 
-#: includes/class/class.LSsession.php:3116
+#: includes/class/class.LSsession.php:3131
 msgid ""
 "LSsession : The addon '%{addon}' support is uncertain. Verify system "
 "compatibility and the add-on configuration."
@@ -1540,53 +1552,53 @@ msgstr ""
 "LSsession : Le support de l'addon '%{addon}' est incertain. Vérifiez la "
 "compatibilité du système et la configuration de l'add-on."
 
-#: includes/class/class.LSsession.php:3119
+#: includes/class/class.LSsession.php:3134
 msgid ""
 "LSsession : LDAP server's configuration data are invalid. Can't connect."
 msgstr ""
 "LSsession : Les données de configuration du serveur LDAP sont invalide. "
 "Impossible de s'y connecter."
 
-#: includes/class/class.LSsession.php:3122
+#: includes/class/class.LSsession.php:3137
 msgid "LSsession : Failed to load LSobject type '%{type}' : unknon type."
 msgstr ""
 "LSsession : Impossible de charger le type d'LSobject '%{type}' : type "
 "inconnu."
 
-#: includes/class/class.LSsession.php:3125
+#: includes/class/class.LSsession.php:3140
 msgid "LSsession : Failed to load LSclass '%{class}'."
 msgstr "LSsession : Impossible de charger la LSclass '%{class}'."
 
-#: includes/class/class.LSsession.php:3128
+#: includes/class/class.LSsession.php:3143
 msgid "LSsession : Login or password incorrect."
 msgstr "LSsession : Identifiant ou mot de passe incorrects."
 
-#: includes/class/class.LSsession.php:3131
+#: includes/class/class.LSsession.php:3146
 msgid "LSsession : Impossible to identify you : Duplication of identities."
 msgstr "LSsession : Impossible de vous identifier : Duplication d'identité."
 
-#: includes/class/class.LSsession.php:3134
+#: includes/class/class.LSsession.php:3149
 msgid "LSsession : Can't load class of authentification (%{class})."
 msgstr ""
 "LSsession : Impossible de charger la classe d'authentification (%{class})."
 
-#: includes/class/class.LSsession.php:3137
+#: includes/class/class.LSsession.php:3152
 msgid "LSsession : Can't connect to LDAP server."
 msgstr "LSsession : Impossible de se connecter au serveur LDAP."
 
-#: includes/class/class.LSsession.php:3140
+#: includes/class/class.LSsession.php:3155
 msgid "LSsession : Impossible to authenticate you."
 msgstr "LSsession : Impossible de vous identifier."
 
-#: includes/class/class.LSsession.php:3143
+#: includes/class/class.LSsession.php:3158
 msgid "LSsession : Your are not authorized to do this action."
 msgstr "LSsession : Vous n'êtes pas autorisé à faire cette action."
 
-#: includes/class/class.LSsession.php:3146
+#: includes/class/class.LSsession.php:3161
 msgid "LSsession : Some informations are missing to display this page."
 msgstr "LSsession : Des informations sont manquantes pour afficher cette page."
 
-#: includes/class/class.LSsession.php:3149
+#: includes/class/class.LSsession.php:3164
 msgid ""
 "LSsession : The function '%{function}' of the custom action "
 "'%{customAction}' does not exists or is not configured."
@@ -1594,24 +1606,24 @@ msgstr ""
 "LSsession : La fonction '%{function}' de l'action personnalisée "
 "'%{customAction}' n'existe pas ou n'est pas configurée."
 
-#: includes/class/class.LSsession.php:3152
+#: includes/class/class.LSsession.php:3167
 msgid "LSsession : Fail to retrieve user's LDAP credentials from LSauth."
 msgstr ""
 "LSsession : Erreur en récupérant les identifiants LDAP de l'utilisateur "
 "depuis LSauth."
 
-#: includes/class/class.LSsession.php:3155
+#: includes/class/class.LSsession.php:3170
 msgid ""
 "LSsession : Fail to reconnect to LDAP server with user's LDAP credentials."
 msgstr ""
 "LSsession : Impossible de se reconnecter au serveur LDAP avec les "
 "identifiants de l'utilisateur."
 
-#: includes/class/class.LSsession.php:3158
+#: includes/class/class.LSsession.php:3173
 msgid "LSsession : No import/export format define for this object type."
 msgstr "LSsession : Aucun format d'entrée/sortie défini pour ce type d'objet."
 
-#: includes/class/class.LSsession.php:3161
+#: includes/class/class.LSsession.php:3176
 msgid ""
 "LSsession : Error during creation of list of levels. Contact administrators. "
 "(Code : %{code})"
@@ -1619,13 +1631,13 @@ msgstr ""
 "LSsession : Erreur durant la création de la liste des niveaux. Contacter les "
 "administrateurs. (Code : %{type})"
 
-#: includes/class/class.LSsession.php:3164
+#: includes/class/class.LSsession.php:3179
 msgid "LSsession : The password recovery is disabled for this LDAP server."
 msgstr ""
 "LSsession : La récupération de mot de passe est désactivée pour ce serveur "
 "LDAP."
 
-#: includes/class/class.LSsession.php:3167
+#: includes/class/class.LSsession.php:3182
 msgid ""
 "LSsession : Some informations are missing to recover your password. Contact "
 "administrators."
@@ -1633,7 +1645,7 @@ msgstr ""
 "LSsession : Des informations sont manques pour pouvoir récupérer votre mot "
 "de passe. Contacter les administrateurs."
 
-#: includes/class/class.LSsession.php:3170
+#: includes/class/class.LSsession.php:3185
 msgid ""
 "LSsession : Error during password recovery. Contact administrators.(Step : "
 "%{step})"
@@ -1641,7 +1653,7 @@ msgstr ""
 "LSsession : Erreur durant la récupération de votre mot de passe. Contacter "
 "les administrateurs. (Etape : %{step})"
 
-#: includes/class/class.LSsession.php:3173
+#: includes/class/class.LSsession.php:3188
 msgid ""
 "LSsession : The function '%{func}' configured for the view '%{view}' of the "
 "LSaddon '%{addon}' is not declared in the LSaddon file."
@@ -1649,11 +1661,11 @@ msgstr ""
 "LSsession : la fonction '%{func}' configurée pour la vue '%{view}' du "
 "LSaddon '%{addon}' n'est pas déclaré dans le fichier du LSaddon."
 
-#: includes/class/class.LSsession.php:3176
+#: includes/class/class.LSsession.php:3191
 msgid "LSsession : Failed to load resource file '%{file}'."
 msgstr "LSsession : Impossible de charger le fichier de ressource '%{file}'."
 
-#: includes/class/class.LSsession.php:3179
+#: includes/class/class.LSsession.php:3194
 msgid ""
 "LSsession : The function '%{func}' configured for the view '%{view}' of the "
 "LSaddon '%{addon}' doesn't exist."
@@ -1661,11 +1673,11 @@ msgstr ""
 "LSsession : la fonction '%{func}' configurée pour la vue '%{view}' du "
 "LSaddon '%{addon}' n'existe pas."
 
-#: includes/class/class.LSsession.php:3182
+#: includes/class/class.LSsession.php:3197
 msgid "LSsession : invalid related object's DN pass in parameter."
 msgstr "LSsession : DN d'objet en relation incorrect dans les paramètres."
 
-#: includes/class/class.LSsession.php:3185
+#: includes/class/class.LSsession.php:3200
 msgid ""
 "LSsession : the LSaddon %{addon} keep using old-style addon view URL. Please "
 "upgrade it."
@@ -1673,7 +1685,7 @@ msgstr ""
 "LSsession : le LSaddon %{addon} utilise toujours l'ancien type d'URL de "
 "vues. Merci de le mettre à jour."
 
-#: includes/class/class.LSsession.php:3188
+#: includes/class/class.LSsession.php:3203
 msgid ""
 "LSsession : You have been redirect from an old-style URL %{url}. Please "
 "upgrade this link."
@@ -1681,7 +1693,7 @@ msgstr ""
 "LSsession : Vous avez été redirigé depuis une ancienne URL %{url}. Merci de "
 "le mettre à jour ce lien."
 
-#: includes/class/class.LSsession.php:3191
+#: includes/class/class.LSsession.php:3206
 msgid ""
 "LSsession : You always seem to use %{old} in your custom code: Please "
 "upgrade it and use %{new}.<pre>\n"
@@ -3163,7 +3175,7 @@ msgstr ""
 "LSsearchEntry : formaterFunction %{func} invalide utilisé pour "
 "l'extraDisplayedColumns %{column}."
 
-#: includes/class/class.LSioFormat.php:171
+#: includes/class/class.LSioFormat.php:224
 msgid "LSioFormat : IOformat driver %{driver} invalid or unavailable."
 msgstr ""
 "LSioFormat : Le pilote d'IOformat %{driver} est invalide ou n'est pas "
diff --git a/src/lang/ldapsaisie.pot b/src/lang/ldapsaisie.pot
index 7280a119..696af66c 100644
--- a/src/lang/ldapsaisie.pot
+++ b/src/lang/ldapsaisie.pot
@@ -359,7 +359,7 @@ msgid "Show LdapSaisie modifications"
 msgstr ""
 
 #: includes/addons/LSaddons.accesslog.php:244
-#: includes/class/class.LSsession.php:1855 includes/routes.php:157
+#: includes/class/class.LSsession.php:1870 includes/routes.php:157
 #: includes/routes.php:470 templates/default/select.tpl:29
 msgid "Refresh"
 msgstr ""
@@ -638,75 +638,83 @@ msgstr ""
 msgid "LSformRule_%{type}: Parameter %{param} is not found."
 msgstr ""
 
-#: includes/class/class.LSio.php:244
+#: includes/class/class.LSio.php:261
 msgid "Failed to set post data on creation form."
 msgstr ""
 
-#: includes/class/class.LSio.php:250
+#: includes/class/class.LSio.php:267
 msgid "Error validating creation form."
 msgstr ""
 
-#: includes/class/class.LSio.php:255
+#: includes/class/class.LSio.php:272
 msgid "Failed to validate object data."
 msgstr ""
 
-#: includes/class/class.LSio.php:262
+#: includes/class/class.LSio.php:279
 msgid "Failed to generate DN for this object."
 msgstr ""
 
-#: includes/class/class.LSio.php:276
+#: includes/class/class.LSio.php:293
 msgid "Error creating object on LDAP server."
 msgstr ""
 
-#: includes/class/class.LSio.php:282
+#: includes/class/class.LSio.php:299
 msgid "An object already exist on LDAP server with DN %{dn}."
 msgstr ""
 
-#: includes/class/class.LSio.php:294
+#: includes/class/class.LSio.php:311
 msgid ""
 "Failed to load existing object %{dn} from LDAP server. Can't update object."
 msgstr ""
 
-#: includes/class/class.LSio.php:303
+#: includes/class/class.LSio.php:320
 msgid "Failed to set post data on update form."
 msgstr ""
 
-#: includes/class/class.LSio.php:309
+#: includes/class/class.LSio.php:326
 msgid "Error validating update form."
 msgstr ""
 
-#: includes/class/class.LSio.php:319
+#: includes/class/class.LSio.php:336
 msgid "Error updating object on LDAP server."
 msgstr ""
 
-#: includes/class/class.LSio.php:691
+#: includes/class/class.LSio.php:724
 msgid "LSio: Post data not found or not completed."
 msgstr ""
 
-#: includes/class/class.LSio.php:694
+#: includes/class/class.LSio.php:727
 msgid "LSio: object type invalid."
 msgstr ""
 
-#: includes/class/class.LSio.php:697
+#: includes/class/class.LSio.php:730
 msgid "LSio: input/output format %{format} invalid."
 msgstr ""
 
-#: includes/class/class.LSio.php:700
+#: includes/class/class.LSio.php:733
 msgid "LSio: Fail to initialize input/output driver."
 msgstr ""
 
-#: includes/class/class.LSio.php:703
+#: includes/class/class.LSio.php:736
 msgid "LSio: Fail to load objects's data from input file."
 msgstr ""
 
-#: includes/class/class.LSio.php:706
+#: includes/class/class.LSio.php:739
 msgid "LSio: Fail to load objects's data to export from LDAP directory."
 msgstr ""
 
-#: includes/class/class.LSio.php:709
+#: includes/class/class.LSio.php:742
 msgid "LSio: Fail to export objects's data."
 msgstr ""
 
+#: includes/class/class.LSio.php:745
+msgid "LSio: An error occured running before import hooks. Stop the import."
+msgstr ""
+
+#: includes/class/class.LSio.php:748
+msgid "LSio: An error occured running after import hooks."
+msgstr ""
+
 #: includes/class/class.LSformElement_supannRessourceEtatDate.php:61
 msgid "Start date"
 msgstr ""
@@ -1282,157 +1290,157 @@ msgstr ""
 msgid "Clear"
 msgstr ""
 
-#: includes/class/class.LSsession.php:1640
+#: includes/class/class.LSsession.php:1655
 msgid "Connection"
 msgstr ""
 
-#: includes/class/class.LSsession.php:1660
+#: includes/class/class.LSsession.php:1675
 msgid "Recovery of your credentials"
 msgstr ""
 
-#: includes/class/class.LSsession.php:1669
+#: includes/class/class.LSsession.php:1684
 msgid "Please fill the identifier field to proceed recovery procedure"
 msgstr ""
 
-#: includes/class/class.LSsession.php:1674
+#: includes/class/class.LSsession.php:1689
 msgid ""
 "An email has been sent to  %{mail}. Please follow the instructions on it."
 msgstr ""
 
-#: includes/class/class.LSsession.php:1683
+#: includes/class/class.LSsession.php:1698
 msgid "Your new password has been sent to %{mail}."
 msgstr ""
 
-#: includes/class/class.LSsession.php:2945 templates/default/select.tpl:20
+#: includes/class/class.LSsession.php:2960 templates/default/select.tpl:20
 #: templates/default/recoverpassword.tpl:17 templates/default/login.tpl:16
 msgid "Level"
 msgstr ""
 
-#: includes/class/class.LSsession.php:3113
+#: includes/class/class.LSsession.php:3128
 msgid "LSsession : The constant '%{const}' is not defined."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3116
+#: includes/class/class.LSsession.php:3131
 msgid ""
 "LSsession : The addon '%{addon}' support is uncertain. Verify system "
 "compatibility and the add-on configuration."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3119
+#: includes/class/class.LSsession.php:3134
 msgid ""
 "LSsession : LDAP server's configuration data are invalid. Can't connect."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3122
+#: includes/class/class.LSsession.php:3137
 msgid "LSsession : Failed to load LSobject type '%{type}' : unknon type."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3125
+#: includes/class/class.LSsession.php:3140
 msgid "LSsession : Failed to load LSclass '%{class}'."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3128
+#: includes/class/class.LSsession.php:3143
 msgid "LSsession : Login or password incorrect."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3131
+#: includes/class/class.LSsession.php:3146
 msgid "LSsession : Impossible to identify you : Duplication of identities."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3134
+#: includes/class/class.LSsession.php:3149
 msgid "LSsession : Can't load class of authentification (%{class})."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3137
+#: includes/class/class.LSsession.php:3152
 msgid "LSsession : Can't connect to LDAP server."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3140
+#: includes/class/class.LSsession.php:3155
 msgid "LSsession : Impossible to authenticate you."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3143
+#: includes/class/class.LSsession.php:3158
 msgid "LSsession : Your are not authorized to do this action."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3146
+#: includes/class/class.LSsession.php:3161
 msgid "LSsession : Some informations are missing to display this page."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3149
+#: includes/class/class.LSsession.php:3164
 msgid ""
 "LSsession : The function '%{function}' of the custom action "
 "'%{customAction}' does not exists or is not configured."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3152
+#: includes/class/class.LSsession.php:3167
 msgid "LSsession : Fail to retrieve user's LDAP credentials from LSauth."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3155
+#: includes/class/class.LSsession.php:3170
 msgid ""
 "LSsession : Fail to reconnect to LDAP server with user's LDAP credentials."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3158
+#: includes/class/class.LSsession.php:3173
 msgid "LSsession : No import/export format define for this object type."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3161
+#: includes/class/class.LSsession.php:3176
 msgid ""
 "LSsession : Error during creation of list of levels. Contact administrators. "
 "(Code : %{code})"
 msgstr ""
 
-#: includes/class/class.LSsession.php:3164
+#: includes/class/class.LSsession.php:3179
 msgid "LSsession : The password recovery is disabled for this LDAP server."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3167
+#: includes/class/class.LSsession.php:3182
 msgid ""
 "LSsession : Some informations are missing to recover your password. Contact "
 "administrators."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3170
+#: includes/class/class.LSsession.php:3185
 msgid ""
 "LSsession : Error during password recovery. Contact administrators.(Step : "
 "%{step})"
 msgstr ""
 
-#: includes/class/class.LSsession.php:3173
+#: includes/class/class.LSsession.php:3188
 msgid ""
 "LSsession : The function '%{func}' configured for the view '%{view}' of the "
 "LSaddon '%{addon}' is not declared in the LSaddon file."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3176
+#: includes/class/class.LSsession.php:3191
 msgid "LSsession : Failed to load resource file '%{file}'."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3179
+#: includes/class/class.LSsession.php:3194
 msgid ""
 "LSsession : The function '%{func}' configured for the view '%{view}' of the "
 "LSaddon '%{addon}' doesn't exist."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3182
+#: includes/class/class.LSsession.php:3197
 msgid "LSsession : invalid related object's DN pass in parameter."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3185
+#: includes/class/class.LSsession.php:3200
 msgid ""
 "LSsession : the LSaddon %{addon} keep using old-style addon view URL. Please "
 "upgrade it."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3188
+#: includes/class/class.LSsession.php:3203
 msgid ""
 "LSsession : You have been redirect from an old-style URL %{url}. Please "
 "upgrade this link."
 msgstr ""
 
-#: includes/class/class.LSsession.php:3191
+#: includes/class/class.LSsession.php:3206
 msgid ""
 "LSsession : You always seem to use %{old} in your custom code: Please "
 "upgrade it and use %{new}.<pre>\n"
@@ -2695,7 +2703,7 @@ msgid ""
 "%{column}."
 msgstr ""
 
-#: includes/class/class.LSioFormat.php:171
+#: includes/class/class.LSioFormat.php:224
 msgid "LSioFormat : IOformat driver %{driver} invalid or unavailable."
 msgstr ""