diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
index 13109cc98..095577194 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
@@ -27,6 +27,7 @@ use Chill\PersonBundle\Entity\AccompanyingPeriod\Resource;
 use Chill\PersonBundle\Entity\SocialWork\SocialIssue;
 use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\ParticipationOverlap;
 use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\ResourceDuplicateCheck;
+use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\AccompanyingPeriodValidity;
 use Chill\ThirdPartyBundle\Entity\ThirdParty;
 use DateTime;
 use DateTimeImmutable;
@@ -58,6 +59,8 @@ use const SORT_REGULAR;
  *     "this.isConfidential and this.getUser === NULL",
  *     message="If the accompanying course is confirmed and confidential, a referrer must remain assigned."
  * )
+ *
+ * @AccompanyingPeriodValidity(groups={AccompanyingPeriod::STEP_DRAFT, AccompanyingPeriod::STEP_CONFIRMED})
  */
 class AccompanyingPeriod implements
     GroupSequenceProviderInterface,
diff --git a/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/AccompanyingPeriodValidity.php b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/AccompanyingPeriodValidity.php
new file mode 100644
index 000000000..a423a20c8
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/AccompanyingPeriodValidity.php
@@ -0,0 +1,27 @@
+<?php
+
+/**
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod;
+
+use Symfony\Component\Validator\Constraint;
+
+/**
+ * @Annotation
+ */
+class AccompanyingPeriodValidity extends Constraint
+{
+    public $messageSocialIssueCannotBeDeleted = 'This social issue cannot be deleted because it is associated with an activity or an action';
+
+    public function getTargets()
+    {
+        return self::CLASS_CONSTRAINT;
+    }
+}
\ No newline at end of file
diff --git a/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/AccompanyingPeriodValidityValidator.php b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/AccompanyingPeriodValidityValidator.php
new file mode 100644
index 000000000..d33180657
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/AccompanyingPeriodValidityValidator.php
@@ -0,0 +1,69 @@
+<?php
+
+/**
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod;
+
+use Chill\ActivityBundle\Repository\ActivityACLAwareRepository;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+use Symfony\Component\Validator\Exception\UnexpectedValueException;
+
+class AccompanyingPeriodValidityValidator extends ConstraintValidator
+{
+
+    private ActivityACLAwareRepository $activityRepository;
+
+    public function __construct(ActivityACLAwareRepository $activityRepository)
+    {
+        $this->activityRepository = $activityRepository;
+    }
+
+    public function validate($period, Constraint $constraint)
+    {
+
+        if (!$constraint instanceof AccompanyingPeriodValidity) {
+            throw new UnexpectedTypeException($constraint, AccompanyingPeriodValidity::class);
+        }
+
+        if (!$period instanceof AccompanyingPeriod) {
+            throw new UnexpectedValueException($period, AccompanyingPeriod::class);
+        }
+
+        dump($period);
+
+        $socialIssues = [];
+
+        $activities = $this->activityRepository->findByAccompanyingPeriod($period, 'SEE');
+        dump($activities);
+        foreach ($activities as $activity) {
+            $socialIssues[] = $activity->getSocialIssues();
+        }
+
+        foreach ($period->getWorks() as $work) {
+            $socialIssues[] = $work->getSocialIssues();
+        }
+        dump($socialIssues);
+
+        foreach ($period->getSocialIssues() as $si) {
+            dump($si);
+            if (!in_array($si, $socialIssues)) {
+                $this->context
+                    ->buildViolation(
+                        $constraint->messageSocialIssueCannotBeDeleted
+                    )
+                    ->addViolation();
+            }
+        }
+
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/translations/validators.fr.yml b/src/Bundle/ChillPersonBundle/translations/validators.fr.yml
index c733a935c..c1dda8bf9 100644
--- a/src/Bundle/ChillPersonBundle/translations/validators.fr.yml
+++ b/src/Bundle/ChillPersonBundle/translations/validators.fr.yml
@@ -46,3 +46,4 @@ household_membership:
 '{{ name }} is already associated to this accompanying course.': '{{ name }} est déjà associé à ce parcours.'
 A course must contains at least one social issue: 'Un parcours doit être associé à au moins une problématique sociale'
 A course must be associated to at least one scope: 'Un parcours doit être associé à au moins un service'
+This social issue cannot be deleted because it is associated with an activity or an action: La problématique sociale ne peut pas être supprimée car elle est associée à une activité ou une action
\ No newline at end of file