diff --git a/.changes/v2.9.1.md b/.changes/v2.9.1.md
new file mode 100644
index 000000000..2e0ddc3ab
--- /dev/null
+++ b/.changes/v2.9.1.md
@@ -0,0 +1,3 @@
+## v2.9.1 - 2023-10-17
+### Fixed
+* Fix the handling of activity form when editing or creating an activity in an accompanying period with multiple centers 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7ade82289..ac742bf77 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@ adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
 and is generated by [Changie](https://github.com/miniscruff/changie).
 
 
+## v2.9.1 - 2023-10-17
+### Fixed
+* Fix the handling of activity form when editing or creating an activity in an accompanying period with multiple centers 
+
 ## v2.9.0 - 2023-10-17
 ### Feature
 * ([#147](https://gitlab.com/Chill-Projet/chill-bundles/-/issues/147)) Add history to scopes and to jobs in administrator section. When user job or main scope of user is changed, automaticaly add a new row in history.
diff --git a/src/Bundle/ChillActivityBundle/Form/ActivityType.php b/src/Bundle/ChillActivityBundle/Form/ActivityType.php
index 8ea117c4a..03a21a5b7 100644
--- a/src/Bundle/ChillActivityBundle/Form/ActivityType.php
+++ b/src/Bundle/ChillActivityBundle/Form/ActivityType.php
@@ -87,8 +87,7 @@ class ActivityType extends AbstractType
         /** @var \Chill\ActivityBundle\Entity\ActivityType $activityType */
         $activityType = $options['activityType'];
 
-        // TODO revoir la gestion des center au niveau du form des activité.
-        if ($options['center'] instanceof Center && null !== $options['data']->getPerson()) {
+        if (null !== $options['data']->getPerson()) {
             $builder->add('scope', ScopePickerType::class, [
                 'center' => $options['center'],
                 'role' => ActivityVoter::CREATE === (string) $options['role'] ? ActivityVoter::CREATE_PERSON : (string) $options['role'],
@@ -192,7 +191,7 @@ class ActivityType extends AbstractType
             ]);
         }
 
-        if ($activityType->isVisible('user') && $options['center'] instanceof Center) {
+        if ($activityType->isVisible('user')) {
             $builder->add('user', PickUserDynamicType::class, [
                 'label' => $activityType->getLabel('user'),
                 'required' => $activityType->isRequired('user'),
@@ -402,7 +401,7 @@ class ActivityType extends AbstractType
 
         $resolver
             ->setRequired(['center', 'role', 'activityType', 'accompanyingPeriod'])
-            ->setAllowedTypes('center', ['null', Center::class])
+            ->setAllowedTypes('center', ['null', Center::class, 'array'])
             ->setAllowedTypes('role', ['string'])
             ->setAllowedTypes('activityType', \Chill\ActivityBundle\Entity\ActivityType::class)
             ->setAllowedTypes('accompanyingPeriod', [\Chill\PersonBundle\Entity\AccompanyingPeriod::class, 'null']);