diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3bd743078..daf880138 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ and this project adheres to
 ## Unreleased
 
 <!-- write down unreleased development here -->
+* [activity] do not override location if already exist (when validating new activity) (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/470)
+
 * [parcours] Toggle emergency/intensity only by referrer (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/442)
 * [docstore] Add an API entrypoint for StoredObject (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/466)
 * [person] Add the possibility of uploading existing documents to AccPeriodWorkEvaluationDocument (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/466)
diff --git a/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.locations.js b/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.locations.js
index 311bdc219..6125140a5 100644
--- a/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.locations.js
+++ b/src/Bundle/ChillActivityBundle/Resources/public/vuejs/Activity/store.locations.js
@@ -110,10 +110,8 @@ export default function prepareLocations(store) {
         console.log('default loation id', window.default_location_id);
         if (window.default_location_id) {
             for (let group of store.state.availableLocations) {
-                console.log(group);
                 let location = group.locations.find((l) => l.id === window.default_location_id);
-                console.log(location);
-                if (location !== undefined) {
+                if (location !== undefined & store.state.activity.location === null) {
                     store.dispatch('updateLocation', location);
                     break;
                 }
diff --git a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php
index 1901fd50c..1969fffa7 100644
--- a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php
+++ b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/PersonJsonNormalizer.php
@@ -189,6 +189,9 @@ class PersonJsonNormalizer implements DenormalizerAwareInterface, NormalizerAwar
     public function normalize($person, $format = null, array $context = [])
     {
         $groups = $context[AbstractNormalizer::GROUPS] ?? [];
+        if (is_string($groups)) {
+            $groups = [$groups];
+        }
         $household = $person->getCurrentHousehold();
         $currentResidentialAddresses = $this->residentialAddressRepository->findCurrentResidentialAddressByPerson($person);