diff --git a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
index 6de4eae0d..d75ade12b 100644
--- a/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
+++ b/src/Bundle/ChillPersonBundle/Entity/AccompanyingPeriod.php
@@ -30,6 +30,8 @@ use Chill\PersonBundle\Entity\AccompanyingPeriod\Resource;
 use Chill\PersonBundle\Entity\AccompanyingPeriod\UserHistory;
 use Chill\PersonBundle\Entity\SocialWork\SocialIssue;
 use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\AccompanyingPeriodValidity;
+use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\ConfidentialCourseMustHaveReferrer;
+use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\LocationValidity;
 use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\ParticipationOverlap;
 use Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod\ResourceDuplicateCheck;
 use Chill\ThirdPartyBundle\Entity\ThirdParty;
@@ -63,6 +65,8 @@ use const SORT_REGULAR;
  * })
  * @Assert\GroupSequenceProvider
  * @AccompanyingPeriodValidity(groups={AccompanyingPeriod::STEP_DRAFT, AccompanyingPeriod::STEP_CONFIRMED})
+ * @LocationValidity(groups={AccompanyingPeriod::STEP_DRAFT, AccompanyingPeriod::STEP_CONFIRMED})
+ * @ConfidentialCourseMustHaveReferrer(groups={AccompanyingPeriod::STEP_DRAFT, AccompanyingPeriod::STEP_CONFIRMED})
  */
 class AccompanyingPeriod implements
     GroupSequenceProviderInterface,
diff --git a/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/ConfidentialCourseMustHaveReferrer.php b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/ConfidentialCourseMustHaveReferrer.php
new file mode 100644
index 000000000..c85130f9b
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/ConfidentialCourseMustHaveReferrer.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 ConfidentialCourseMustHaveReferrer extends Constraint
+{
+    public string $message = 'A confidential parcours must have a referrer';
+
+    public function getTargets()
+    {
+        return [self::CLASS_CONSTRAINT];
+    }
+}
diff --git a/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/ConfidentialCourseMustHaveReferrerValidator.php b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/ConfidentialCourseMustHaveReferrerValidator.php
new file mode 100644
index 000000000..bc2cd3256
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Validator/Constraints/AccompanyingPeriod/ConfidentialCourseMustHaveReferrerValidator.php
@@ -0,0 +1,29 @@
+<?php
+
+namespace Chill\PersonBundle\Validator\Constraints\AccompanyingPeriod;
+
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidator;
+use Symfony\Component\Validator\Exception\UnexpectedTypeException;
+
+class ConfidentialCourseMustHaveReferrerValidator extends ConstraintValidator
+{
+    public function validate($value, Constraint $constraint)
+    {
+        if (!$value instanceof AccompanyingPeriod) {
+            throw new UnexpectedTypeException($value, AccompanyingPeriod::class);
+        }
+
+        if (!$constraint instanceof ConfidentialCourseMustHaveReferrer) {
+            throw new UnexpectedTypeException($constraint, ConfidentialCourseMustHaveReferrer::class);
+        }
+
+        if ($value->isConfidential() && null === $value->getUser()) {
+            $this->context
+                ->buildViolation($constraint->message)
+                ->atPath('user')
+                ->addViolation();
+        }
+    }
+}