diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78cc7e038..1833bd89c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,8 @@ and this project adheres to
 * [main] Add confidential option for address, in edit and view (https://gitlab.com/champs-libres/departement-de-la-vendee/accent-suivi-developpement/-/issues/165)
 * [person] name suggestions within create person form when person is created departing from a search input (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/377)
 * [person] Add residential address entity, form and list for each person
+* [aside_activity]: dynamicUserPickerType used (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/399)
+
 ## Test releases
 
 ### test release 2021-01-26
@@ -28,7 +30,6 @@ and this project adheres to
 * dispatching list
 
 
-
 ### test release 2022-01-24
 
 * [person] name suggestions within create person form when person is created departing from a search input (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/377)
diff --git a/src/Bundle/ChillAsideActivityBundle/src/Controller/AsideActivityController.php b/src/Bundle/ChillAsideActivityBundle/src/Controller/AsideActivityController.php
index eee8c7dc8..e5244009e 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/Controller/AsideActivityController.php
+++ b/src/Bundle/ChillAsideActivityBundle/src/Controller/AsideActivityController.php
@@ -32,6 +32,8 @@ final class AsideActivityController extends CRUDController
     {
         $asideActivity = new AsideActivity();
 
+        $asideActivity->setAgent($this->getUser());
+
         $duration = $request->query->get('duration', '300');
         $duration = DateTime::createFromFormat('U', $duration);
         $asideActivity->setDuration($duration);
diff --git a/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php b/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php
index 5a4eec9e0..6ade55d07 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php
+++ b/src/Bundle/ChillAsideActivityBundle/src/Form/AsideActivityFormType.php
@@ -14,9 +14,9 @@ namespace Chill\AsideActivityBundle\Form;
 use Chill\AsideActivityBundle\Entity\AsideActivity;
 use Chill\AsideActivityBundle\Entity\AsideActivityCategory;
 use Chill\AsideActivityBundle\Templating\Entity\CategoryRender;
-use Chill\MainBundle\Entity\User;
 use Chill\MainBundle\Form\Type\ChillDateType;
 use Chill\MainBundle\Form\Type\ChillTextareaType;
+use Chill\MainBundle\Form\Type\PickUserDynamicType;
 use DateInterval;
 use DateTime;
 use DateTimeImmutable;
@@ -68,22 +68,10 @@ final class AsideActivityFormType extends AbstractType
         ];
 
         $builder
-            ->add(
-                'agent',
-                EntityType::class,
-                [
-                    'label' => 'For agent',
-                    'required' => true,
-                    'class' => User::class,
-                    'data' => $this->storage->getToken()->getUser(),
-                    'query_builder' => static function (EntityRepository $er) {
-                        return $er->createQueryBuilder('u')->where('u.enabled = true');
-                    },
-                    'attr' => ['class' => 'select2 '],
-                    'placeholder' => 'Choose the agent for whom this activity is created',
-                    'choice_label' => 'username',
-                ]
-            )
+            ->add('agent', PickUserDynamicType::class, [
+                'label' => 'For agent',
+                'required' => true,
+            ])
             ->add(
                 'date',
                 ChillDateType::class,
diff --git a/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/new.html.twig b/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/new.html.twig
index 0781272a1..09acf9859 100644
--- a/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/new.html.twig
+++ b/src/Bundle/ChillAsideActivityBundle/src/Resources/views/asideActivity/new.html.twig
@@ -1,5 +1,15 @@
 {% extends '@ChillMain/Admin/layout.html.twig' %}
 
+{% block js %}
+    {{ parent() }}
+    {{ encore_entry_script_tags('mod_pickentity_type') }}
+{% endblock %}
+
+{% block css %}
+    {{ parent() }}
+    {{ encore_entry_link_tags('mod_pickentity_type') }}
+{% endblock %}
+
 {% block title %}
 {% include('@ChillMain/CRUD/_new_title.html.twig') %}
 {% endblock %}
@@ -8,4 +18,5 @@
 {% embed '@ChillMain/CRUD/_new_content.html.twig' %}
     {% block content_form_actions_save_and_show %}{% endblock %}
 {% endembed %}
-{% endblock %}
\ No newline at end of file
+{% endblock %}
+