diff --git a/CHANGELOG.md b/CHANGELOG.md
index 49943e927..5ea16e7fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ and this project adheres to
 ## Unreleased
 
 <!-- write down unreleased development here -->
+* [Documents] Validate storedObject and allow for null data (https://gitlab.com/champs-libres/departement-de-la-vendee/chill/-/issues/565)
+* [Activity form] invert 'incoming' and 'receiving' in Activity form
+* [Activity form] keep the same order for 'attendee' field in new and edit form
+* [list with period] use "sameas" test operator to introduce requestor in list
 
 ## Test releases
 
diff --git a/src/Bundle/ChillActivityBundle/Entity/Activity.php b/src/Bundle/ChillActivityBundle/Entity/Activity.php
index eabaa44d1..0c0632722 100644
--- a/src/Bundle/ChillActivityBundle/Entity/Activity.php
+++ b/src/Bundle/ChillActivityBundle/Entity/Activity.php
@@ -35,6 +35,7 @@ use Symfony\Component\Security\Core\User\UserInterface;
 use Symfony\Component\Serializer\Annotation\DiscriminatorMap;
 use Symfony\Component\Serializer\Annotation\Groups;
 use Symfony\Component\Serializer\Annotation\SerializedName;
+use Symfony\Component\Validator\Constraints as Assert;
 
 /**
  * Class Activity.
@@ -93,6 +94,7 @@ class Activity implements AccompanyingPeriodLinkedWithSocialIssuesEntityInterfac
 
     /**
      * @ORM\ManyToMany(targetEntity="Chill\DocStoreBundle\Entity\StoredObject", cascade={"persist"})
+     * @Assert\Valid(traverse=true)
      */
     private Collection $documents;
 
diff --git a/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php b/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php
index c309fab72..56380ec74 100644
--- a/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php
+++ b/src/Bundle/ChillDocStoreBundle/Entity/StoredObject.php
@@ -149,37 +149,37 @@ class StoredObject implements AsyncFileInterface, Document
         return $this;
     }
 
-    public function setDatas(array $datas)
+    public function setDatas(?array $datas)
     {
-        $this->datas = $datas;
+        $this->datas = (array) $datas;
 
         return $this;
     }
 
-    public function setFilename($filename)
+    public function setFilename(?string $filename)
     {
-        $this->filename = $filename;
+        $this->filename = (string) $filename;
 
         return $this;
     }
 
-    public function setIv(array $iv)
+    public function setIv(?array $iv)
     {
-        $this->iv = $iv;
+        $this->iv = (array) $iv;
 
         return $this;
     }
 
-    public function setKeyInfos(array $keyInfos)
+    public function setKeyInfos(?array $keyInfos)
     {
-        $this->keyInfos = $keyInfos;
+        $this->keyInfos = (array) $keyInfos;
 
         return $this;
     }
 
-    public function setType(string $type)
+    public function setType(?string $type)
     {
-        $this->type = $type;
+        $this->type = (string) $type;
 
         return $this;
     }
diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
index b31225df1..cf3fb8a9f 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
@@ -20,6 +20,7 @@ use DateTimeInterface;
 use Doctrine\ORM\Mapping as ORM;
 use RuntimeException;
 use Symfony\Component\Serializer\Annotation as Serializer;
+use Symfony\Component\Validator\Constraints as Assert;
 
 /**
  * @ORM\Entity
@@ -88,6 +89,7 @@ class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doct
      * @Serializer\Groups({"read"})
      * @Serializer\Groups({"write"})
      * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
+     * @Assert\Valid
      */
     private ?StoredObject $storedObject = null;