diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWork.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWork.php
index c491ee94d..f97f8a243 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWork.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWork.php
@@ -164,8 +164,12 @@ use Symfony\Component\Validator\Constraints as Assert;
       * @var Collection
       * @ORM\OneToMany(
       *     targetEntity=AccompanyingPeriodWorkEvaluation::class,
-      *     mappedBy="accompanyingPeriodWork"
+      *     mappedBy="accompanyingPeriodWork",
+      *     cascade={"persist"},
+      *     orphanRemoval=true
       * )
+      * @Serializer\Groups({"read"})
+      * @internal /!\ the serialization for read / write evaluations is handled in `AccompanyingPeriodWorkDenormalizer`
       */
     private Collection $accompanyingPeriodWorkEvaluations;
 
@@ -398,6 +402,11 @@ use Symfony\Component\Validator\Constraints as Assert;
         return $this->thirdParties;
     }
 
+    public function getThirdPartys(): Collection
+    {
+        return $this->getThirdParties();
+    }
+
     public function addThirdParty(ThirdParty $thirdParty): self
     {
         if (!$this->thirdParties->contains($thirdParty)) {
@@ -434,4 +443,31 @@ use Symfony\Component\Validator\Constraints as Assert;
 
         return $this;
     }
+
+     /**
+      * @return Collection
+      */
+     public function getAccompanyingPeriodWorkEvaluations()
+     {
+         return $this->accompanyingPeriodWorkEvaluations;
+     }
+
+     public function addAccompanyingPeriodWorkEvaluation(AccompanyingPeriodWorkEvaluation $evaluation): self
+     {
+         if (!$this->accompanyingPeriodWorkEvaluations->contains($evaluation)) {
+             $this->accompanyingPeriodWorkEvaluations[] = $evaluation;
+             $evaluation->setAccompanyingPeriodWork($this);
+         }
+
+         return $this;
+     }
+
+     public function removeAccompanyingPeriodWorkEvaluation(AccompanyingPeriodWorkEvaluation $evaluation): self
+     {
+         $this->accompanyingPeriodWorkEvaluations
+             ->removeElement($evaluation);
+         $evaluation->setAccompanyingPeriodWork(null);
+
+         return $this;
+     }
 }
diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluation.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluation.php
index ea7fa57b1..cce032621 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluation.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluation.php
@@ -12,10 +12,14 @@ use DateTimeImmutable;
 use Doctrine\Common\Collections\ArrayCollection;
 use Doctrine\Common\Collections\Collection;
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Serializer\Annotation as Serializer;
 
 /**
  * @ORM\Entity
  * @ORM\Table("chill_person_accompanying_period_work_evaluation")
+ * @Serializer\DiscriminatorMap(typeProperty="type", mapping={
+ *        "accompanying_period_work_evaluation"=AccompanyingPeriodWorkEvaluation::class,
+ *     })
  */
 class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCreationInterface
 {
@@ -23,8 +27,9 @@ class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCre
      * @ORM\Id
      * @ORM\GeneratedValue
      * @ORM\Column(type="integer")
+     * @Serializer\Groups({"read"})
      */
-    private ?int $id;
+    private ?int $id = null;
 
     /**
      * @ORM\ManyToOne(
@@ -32,60 +37,82 @@ class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCre
      *     inversedBy="accompanyingPeriodWorkEvaluations"
      * )
      */
-    private ?AccompanyingPeriodWork $accompanyingPeriodWork;
+    private ?AccompanyingPeriodWork $accompanyingPeriodWork = null;
 
     /**
      * @ORM\ManyToOne(
      *     targetEntity=Evaluation::class
      * )
+     * @Serializer\Groups({"read"})
+     * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
      */
-    private ?Evaluation $evaluation;
+    private ?Evaluation $evaluation = null;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
+     * @Serializer\Groups({"write"})
+     * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
      */
-    private ?DateTimeImmutable $startDate;
+    private ?DateTimeImmutable $startDate = null;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
+     * @Serializer\Groups({"write"})
+     * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
      */
-    private ?DateTimeImmutable $endDate;
+    private ?DateTimeImmutable $endDate = null;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
+     * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
      */
-    private ?DateTimeImmutable $maxDate;
+    private ?DateTimeImmutable $maxDate = null;
 
     /**
      * @ORM\Column(type="dateinterval", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
+     * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
      */
-    private ?DateInterval $warningInterval;
+    private ?DateInterval $warningInterval = null;
 
+    /**
+     * @var string
+     * @Serializer\Groups({"read"})
+     * @Serializer\Groups({"write"})
+     * @Serializer\Groups({"accompanying_period_work_evaluation:create"})
+     */
     private string $comment = '';
 
    /**
      * @ORM\ManyToOne(
      *     targetEntity=User::class
      * )
-     */
-    private ?User $createdBy;
+    * @Serializer\Groups({"read"})
+    */
+    private ?User $createdBy = null;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
      */
-    private ?DateTimeImmutable $createdAt;
+    private ?DateTimeImmutable $createdAt = null;
 
     /**
      * @ORM\ManyToOne(
      *     targetEntity=User::class
      * )
+     * @Serializer\Groups({"read"})
      */
-    private ?User $updatedBy;
+    private ?User $updatedBy = null;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
      */
-    private ?DateTimeImmutable $updatedAt;
+    private ?DateTimeImmutable $updatedAt = null;
 
     /**
      * @var Collection
@@ -93,6 +120,7 @@ class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCre
      *     targetEntity=AccompanyingPeriodWorkEvaluationDocument::class,
      *     mappedBy="accompanyingPeriodWorkEvaluation"
      *     )
+     * @Serializer\Groups({"read"})
      */
     private Collection $documents;
 
@@ -123,6 +151,14 @@ class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCre
      */
     public function setAccompanyingPeriodWork(?AccompanyingPeriodWork $accompanyingPeriodWork): AccompanyingPeriodWorkEvaluation
     {
+        if (
+            $accompanyingPeriodWork instanceof AccompanyingPeriodWork
+            && $this->accompanyingPeriodWork instanceof AccompanyingPeriodWork
+            && $this->accompanyingPeriodWork->getId() !== $accompanyingPeriodWork->getId()) {
+            throw new \RuntimeException("Changing the ".
+            "accompanyingPeriodWork is not allowed");
+        }
+
         $this->accompanyingPeriodWork = $accompanyingPeriodWork;
         return $this;
     }
@@ -141,7 +177,20 @@ class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCre
      */
     public function setEvaluation(?Evaluation $evaluation): AccompanyingPeriodWorkEvaluation
     {
+        if (
+            ($evaluation instanceof Evaluation
+                && $this->evaluation instanceof Evaluation
+                && $evaluation->getId() !== $this->evaluation->getId())
+            ||
+            ($this->evaluation instanceof Evaluation
+                && null === $evaluation)
+        ) {
+            throw new \LogicException("once set, an ${self::class} cannot
+                change or remove the linked Evaluation::class");
+        }
+
         $this->evaluation = $evaluation;
+
         return $this;
     }
 
@@ -306,4 +355,14 @@ class AccompanyingPeriodWorkEvaluation implements TrackUpdateInterface, TrackCre
         $this->updatedAt = $updatedAt;
         return $this;
     }
+
+    /**
+     * @return Collection
+     */
+    public function getDocuments()
+    {
+        return $this->documents;
+    }
+
+
 }
diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
index b0ddd7bab..4d652f338 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod/AccompanyingPeriodWorkEvaluationDocument.php
@@ -7,10 +7,14 @@ use Chill\MainBundle\Doctrine\Model\TrackCreationInterface;
 use Chill\MainBundle\Doctrine\Model\TrackUpdateInterface;
 use Chill\MainBundle\Entity\User;
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Serializer\Annotation as Serializer;
 
 /**
  * @ORM\Entity
  * @ORM\Table("chill_person_accompanying_period_work_evaluation_document")
+ * @Serializer\DiscriminatorMap(typeProperty="type", mapping={
+ *     "accompanying_period_work_evaluation_document"=AccompanyingPeriodWorkEvaluationDocument::class
+ *     })
  */
 class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doctrine\Model\TrackCreationInterface, \Chill\MainBundle\Doctrine\Model\TrackUpdateInterface
 {
@@ -22,8 +26,10 @@ class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doct
      *
      * @internal the default name exceeds 64 characters, we must set manually:
      * @ORM\SequenceGenerator(sequenceName="chill_person_social_work_eval_doc_id_seq", allocationSize=1, initialValue=1000)
+     * @Serializer\Groups({"read"})
      */
     private ?int $id;
+
     /**
      * @var AccompanyingPeriodWorkEvaluation|null
      * @ORM\ManyToOne(
@@ -37,11 +43,13 @@ class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doct
      * @ORM\ManyToOne(
      *     targetEntity=User::class
      * )
+     * @Serializer\Groups({"read"})
      */
     private ?User $createdBy;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
      */
     private ?\DateTimeImmutable $createdAt;
 
@@ -49,11 +57,13 @@ class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doct
      * @ORM\ManyToOne(
      *     targetEntity=User::class
      * )
+     * @Serializer\Groups({"read"})
      */
     private ?User $updatedBy;
 
     /**
      * @ORM\Column(type="date_immutable", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
      */
     private ?DateTimeImmutable $updatedAt;
 
@@ -121,5 +131,44 @@ class AccompanyingPeriodWorkEvaluationDocument implements \Chill\MainBundle\Doct
         return $this;
     }
 
+    /**
+     * @return int|null
+     */
+    public function getId(): ?int
+    {
+        return $this->id;
+    }
+
+    /**
+     * @return User|null
+     */
+    public function getCreatedBy(): ?User
+    {
+        return $this->createdBy;
+    }
+
+    /**
+     * @return \DateTimeImmutable|null
+     */
+    public function getCreatedAt(): ?\DateTimeInterface
+    {
+        return $this->createdAt;
+    }
+
+    /**
+     * @return User|null
+     */
+    public function getUpdatedBy(): ?User
+    {
+        return $this->updatedBy;
+    }
+
+    /**
+     * @return DateTimeImmutable|null
+     */
+    public function getUpdatedAt(): ?DateTimeInterface
+    {
+        return $this->updatedAt;
+    }
 
 }
diff --git a/src/Bundle/ChillPersonBundle/Entity/SocialWork/Evaluation.php b/src/Bundle/ChillPersonBundle/Entity/SocialWork/Evaluation.php
index adc7f54fb..f01b2a4c1 100644
--- a/src/Bundle/ChillPersonBundle/Entity/SocialWork/Evaluation.php
+++ b/src/Bundle/ChillPersonBundle/Entity/SocialWork/Evaluation.php
@@ -3,10 +3,14 @@
 namespace Chill\PersonBundle\Entity\SocialWork;
 
 use Doctrine\ORM\Mapping as ORM;
+use Symfony\Component\Serializer\Annotation as Serializer;
 
 /**
  * @ORM\Entity
  * @ORM\Table(name="chill_person_social_work_evaluation")
+ * @Serializer\DiscriminatorMap(typeProperty="type", mapping={
+ *     "social_work_evaluation"=Evaluation::class
+ *     })
  */
 class Evaluation
 {
@@ -14,21 +18,25 @@ class Evaluation
      * @ORM\Id
      * @ORM\GeneratedValue
      * @ORM\Column(type="integer")
+     * @Serializer\Groups({"read"})
      */
     private $id;
 
     /**
      * @ORM\Column(type="json")
+     * @Serializer\Groups({"read"})
      */
     private $title = [];
 
     /**
      * @ORM\Column(type="dateinterval", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
      */
     private $delay;
 
     /**
      * @ORM\Column(type="dateinterval", nullable=true, options={"default": null})
+     * @Serializer\Groups({"read"})
      */
     private $notificationDelay;
 
diff --git a/src/Bundle/ChillPersonBundle/Serializer/Normalizer/AccompanyingPeriodWorkDenormalizer.php b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/AccompanyingPeriodWorkDenormalizer.php
new file mode 100644
index 000000000..4a8d51aa1
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Serializer/Normalizer/AccompanyingPeriodWorkDenormalizer.php
@@ -0,0 +1,132 @@
+<?php
+
+namespace Chill\PersonBundle\Serializer\Normalizer;
+
+use Chill\PersonBundle\Entity\AccompanyingPeriod\AccompanyingPeriodWork;
+use Chill\PersonBundle\Entity\AccompanyingPeriod\AccompanyingPeriodWorkEvaluation;
+use Chill\PersonBundle\Entity\Person;
+use Chill\PersonBundle\Entity\SocialWork\Goal;
+use Chill\PersonBundle\Entity\SocialWork\Result;
+use Chill\PersonBundle\Entity\SocialWork\SocialAction;
+use Chill\PersonBundle\Repository\AccompanyingPeriod\AccompanyingPeriodWorkRepository;
+use Chill\ThirdPartyBundle\Entity\ThirdParty;
+use Doctrine\ORM\EntityManagerInterface;
+use Symfony\Component\Serializer\Exception\BadMethodCallException;
+use Symfony\Component\Serializer\Exception\ExceptionInterface;
+use Symfony\Component\Serializer\Exception\ExtraAttributesException;
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\Exception\LogicException;
+use Symfony\Component\Serializer\Exception\RuntimeException;
+use Symfony\Component\Serializer\Exception\UnexpectedValueException;
+use Symfony\Component\Serializer\Normalizer\AbstractNormalizer;
+use Symfony\Component\Serializer\Normalizer\ContextAwareDenormalizerInterface;
+use Symfony\Component\Serializer\Normalizer\DenormalizerAwareInterface;
+use Symfony\Component\Serializer\Normalizer\DenormalizerAwareTrait;
+use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
+use Symfony\Component\Serializer\Normalizer\ObjectToPopulateTrait;
+
+/**
+ * This denormalizer rely on AbstractNormalizer for most of the job, and
+ * add some logic for synchronizing collection.
+ */
+class AccompanyingPeriodWorkDenormalizer implements DenormalizerAwareInterface, ContextAwareDenormalizerInterface
+{
+    use DenormalizerAwareTrait;
+    use ObjectToPopulateTrait;
+
+    private AccompanyingPeriodWorkRepository $workRepository;
+    private EntityManagerInterface $em;
+
+    public const GROUP_CREATE = 'accompanying_period_work:create';
+    public const GROUP_EDIT   = 'accompanying_period_work:edit';
+
+    /**
+     * @param AccompanyingPeriodWorkRepository $workRepository
+     */
+    public function __construct(
+        AccompanyingPeriodWorkRepository $workRepository,
+        EntityManagerInterface $em
+    ) {
+        $this->workRepository = $workRepository;
+        $this->em = $em;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function denormalize($data, string $type, string $format = null, array $context = [])
+    {
+        $work = $this->denormalizer->denormalize($data, $type, $format, \array_merge($context,
+            ['skip' => self::class]));
+
+        if (\in_array('accompanying_period_work:edit', $context['groups'] ?? [])) {
+            $this->handleEvaluationCollection($data, $work, $format, $context);
+        }
+
+        return $work;
+    }
+
+    private function handleEvaluationCollection(array $data, AccompanyingPeriodWork $work, string $format, array $context)
+    {
+        $dataById = [];
+        $dataWithoutId = [];
+        foreach ($data['accompanyingPeriodWorkEvaluations'] as $e) {
+           if (\array_key_exists('id', $e)) {
+               $dataById[$e['id']] = $e;
+           } else {
+               $dataWithoutId[] = $e;
+           }
+        }
+
+        // partition the separate kept evaluations and removed one
+        list($kept, $removed) = $work->getAccompanyingPeriodWorkEvaluations()
+            ->partition(
+                fn(int $key, AccompanyingPeriodWorkEvaluation $a) => \array_key_exists($a->getId(), $dataById)
+            );
+
+        // remove the evaluations from work
+        foreach ($removed as $r) {
+            $work->removeAccompanyingPeriodWorkEvaluation($r);
+        }
+        // handle the evaluation kept
+        foreach ($kept as $k) {
+            $this->denormalizer->denormalize(
+                $dataById[$k->getId()],
+               AccompanyingPeriodWorkEvaluation::class,
+                $format,
+                \array_merge(
+                    $context,
+                    [
+                        'groups' => [ 'write' ],
+                        AbstractNormalizer::OBJECT_TO_POPULATE => $k
+                    ]
+                )
+            );
+        }
+        // create new evaluation
+        foreach ($dataWithoutId as $newData) {
+            $evaluation = $this->denormalizer->denormalize(
+                $newData,
+                AccompanyingPeriodWorkEvaluation::class,
+                $format,
+                \array_merge($context, ['groups' => [ 'accompanying_period_work_evaluation:create']]
+                )
+            );
+            $work->addAccompanyingPeriodWorkEvaluation($evaluation);
+        }
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function supportsDenormalization($data, string $type, string $format = null, array $context = []): bool
+    {
+        return $type === AccompanyingPeriodWork::class
+            && ($context['skip'] ?? null) !== self::class
+            && \is_array($data)
+            && \array_key_exists("type", $data)
+            && $data["type"] === 'accompanying_period_work';
+    }
+
+
+}