diff --git a/eox_nelp/migrations/0010_pearsonrtenevent_candidate.py b/eox_nelp/migrations/0010_pearsonrtenevent_candidate.py
new file mode 100644
index 00000000..2994d899
--- /dev/null
+++ b/eox_nelp/migrations/0010_pearsonrtenevent_candidate.py
@@ -0,0 +1,21 @@
+# Generated by Django 3.2.21 on 2024-07-05 21:33
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('eox_nelp', '0009_pearsonrtenevent_appointments'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='pearsonrtenevent',
+            name='candidate',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to=settings.AUTH_USER_MODEL),
+        ),
+    ]
diff --git a/eox_nelp/pearson_vue/admin.py b/eox_nelp/pearson_vue/admin.py
index 9091421e..24c45b0a 100644
--- a/eox_nelp/pearson_vue/admin.py
+++ b/eox_nelp/pearson_vue/admin.py
@@ -22,9 +22,9 @@ class PearsonRTENEventAdmin(admin.ModelAdmin):
         list_display (list): List of fields to display in the admin list view.
         readonly_fields (tuple): Tuple of fields that are read-only in the admin interface.
     """
-    list_display = ("event_type", "created_at")
-    readonly_fields = ("created_at",)
-    list_filter = ["event_type",]
+    list_display = ("event_type", "created_at", "candidate")
+    readonly_fields = ("created_at", "candidate", "event_type")
+    list_filter = ["event_type"]
 
 
 admin.site.register(PearsonRTENEvent, PearsonRTENEventAdmin)
diff --git a/eox_nelp/pearson_vue/api/v1/serializers.py b/eox_nelp/pearson_vue/api/v1/serializers.py
index ead7db6e..ebc6f490 100644
--- a/eox_nelp/pearson_vue/api/v1/serializers.py
+++ b/eox_nelp/pearson_vue/api/v1/serializers.py
@@ -34,7 +34,7 @@ class PearsonRTENSerializer(serializers.ModelSerializer):
     class Meta:
         """Meta class"""
         model = PearsonRTENEvent
-        fields = ["event_type", "content", "created_at"]
+        fields = ["event_type", "content", "candidate", "created_at"]
         read_only_fields = ["event_type", "created_at"]
 
     def to_internal_value(self, data):
diff --git a/eox_nelp/pearson_vue/api/v1/views.py b/eox_nelp/pearson_vue/api/v1/views.py
index 670776f6..481b513f 100644
--- a/eox_nelp/pearson_vue/api/v1/views.py
+++ b/eox_nelp/pearson_vue/api/v1/views.py
@@ -22,6 +22,7 @@
 from rest_framework.permissions import IsAuthenticated
 from rest_framework.response import Response
 
+from eox_nelp.edxapp_wrapper.student import AnonymousUserId
 from eox_nelp.pearson_vue.api.v1.serializers import PearsonRTENSerializer
 from eox_nelp.pearson_vue.constants import (
     CANCEL_APPOINTMENT,
@@ -102,7 +103,7 @@ def perform_create(self, serializer):
             serializer (Serializer): The serializer instance used for data validation and saving.
         """
         content_data = self.request.data.copy()
-        serializer.save(event_type=self.event_type, content=content_data)
+        serializer.save(event_type=self.event_type, candidate=self.get_candidate(), content=content_data)
 
     def create(self, request, *args, **kwargs):
         """
@@ -123,6 +124,24 @@ def create(self, request, *args, **kwargs):
         headers = self.get_success_headers(serializer.data)
         return Response({}, status=status.HTTP_200_OK, headers=headers)
 
+    def get_candidate(self):
+        """
+        Retrieves the candidate user based on the client candidate ID provided in the request data.
+
+        This method extracts the `clientCandidateID` from the request data, removes the "NELC" prefix,
+        and attempts to retrieve the corresponding user from the `AnonymousUserId` model. If the candidate
+        ID does not exist, it returns `None`.
+
+        Returns:
+            user (object or None): The user object associated with the anonymous user ID, or `None` if not found.
+        """
+        anonymous_user_id = self.request.data.get("clientCandidateID", "").replace("NELC", "")
+
+        try:
+            return AnonymousUserId.objects.get(anonymous_user_id=anonymous_user_id).user
+        except AnonymousUserId.DoesNotExist:
+            return None
+
 
 class ResultNotificationView(PearsonRTENBaseView):
     """
diff --git a/eox_nelp/pearson_vue/models.py b/eox_nelp/pearson_vue/models.py
index aa3037a7..118bd3eb 100644
--- a/eox_nelp/pearson_vue/models.py
+++ b/eox_nelp/pearson_vue/models.py
@@ -10,6 +10,7 @@
     EVENT_TYPE_CHOICES: A list of tuples representing the possible choices
         for an event type. Each choice represents a different type of event.
 """
+from django.contrib.auth import get_user_model
 from django.db import models
 
 from eox_nelp.pearson_vue.constants import (
@@ -33,6 +34,7 @@
     (MODIFY_APPOINTMENT, "Modify Appointment"),
     (CANCEL_APPOINTMENT, "Cancel Appointment"),
 ]
+User = get_user_model()
 
 
 class PearsonRTENEvent(models.Model):
@@ -47,3 +49,4 @@ class PearsonRTENEvent(models.Model):
     content = models.JSONField()
     created_at = models.DateTimeField(auto_now_add=True)
     event_type = models.CharField(max_length=20, choices=EVENT_TYPE_CHOICES)
+    candidate = models.ForeignKey(User, null=True, on_delete=models.SET_NULL)
diff --git a/eox_nelp/pearson_vue/tests/api/v1/test_views.py b/eox_nelp/pearson_vue/tests/api/v1/test_views.py
index 6c2be5fd..cd41d6c2 100644
--- a/eox_nelp/pearson_vue/tests/api/v1/test_views.py
+++ b/eox_nelp/pearson_vue/tests/api/v1/test_views.py
@@ -14,11 +14,13 @@
 from unittest.mock import patch
 
 from django.contrib.auth import get_user_model
+from django.core.exceptions import ObjectDoesNotExist
 from django.test import override_settings
 from django.urls import reverse
 from rest_framework import status
 from rest_framework.test import APIClient
 
+from eox_nelp.edxapp_wrapper.student import AnonymousUserId
 from eox_nelp.pearson_vue.constants import (
     CANCEL_APPOINTMENT,
     MODIFY_APPOINTMENT,
@@ -48,6 +50,13 @@ def setUp(self):  # pylint: disable=invalid-name
         self.user, _ = User.objects.get_or_create(username='testuser', password='12345')
         self.client.force_authenticate(user=self.user)
 
+    def tearDown(self):  # pylint: disable=invalid-name
+        """
+        Reset the mocked objects after each test.
+        """
+        AnonymousUserId.reset_mock()
+        AnonymousUserId.objects.get.side_effect = None
+
     @override_settings(ENABLE_CERTIFICATE_PUBLISHER=False)
     def test_create_result_notification_event(self):
         """
@@ -57,18 +66,48 @@ def test_create_result_notification_event(self):
             - The number of records has increased in 1.
             - Response returns a 200 status code.
             - Response data is empty.
+            - AnonymousUserId.objects.get has been called with the expected data.
+        """
+        # pylint: disable=no-member
+        initial_count = PearsonRTENEvent.objects.filter(event_type=self.event_type, candidate=self.user).count()
+        AnonymousUserId.objects.get.return_value.user = self.user
 
+        response = self.client.post(
+            reverse(f"pearson-vue-api:v1:{self.event_type}"),
+            {"clientCandidateID": "NELC123456"},
+            format="json",
+        )
+
+        final_count = PearsonRTENEvent.objects.filter(event_type=self.event_type, candidate=self.user).count()
+
+        self.assertEqual(final_count, initial_count + 1)
+        self.assertEqual(response.status_code, status.HTTP_200_OK)
+        self.assertEqual(response.data, {})
+        AnonymousUserId.objects.get.assert_called_once_with(anonymous_user_id="123456")
+
+    def test_create_result_notification_event_without_user(self):
+        """
+        Test creating an event without clienCandidateID.
+
+        Expected behavior:
+            - The number of records has increased in 1.
+            - Response returns a 200 status code.
+            - Response data is empty.
+            - AnonymousUserId.objects.get has been called with the expected data.
         """
         # pylint: disable=no-member
-        initial_count = PearsonRTENEvent.objects.filter(event_type=self.event_type).count()
+        initial_count = PearsonRTENEvent.objects.filter(event_type=self.event_type, candidate=None).count()
+        AnonymousUserId.DoesNotExist = ObjectDoesNotExist
+        AnonymousUserId.objects.get.side_effect = AnonymousUserId.DoesNotExist
 
         response = self.client.post(reverse(f"pearson-vue-api:v1:{self.event_type}"), {}, format="json")
 
-        final_count = PearsonRTENEvent.objects.filter(event_type=self.event_type).count()
+        final_count = PearsonRTENEvent.objects.filter(event_type=self.event_type, candidate=None).count()
 
         self.assertEqual(final_count, initial_count + 1)
         self.assertEqual(response.status_code, status.HTTP_200_OK)
         self.assertEqual(response.data, {})
+        AnonymousUserId.objects.get.assert_called_once_with(anonymous_user_id="")
 
     def test_get_event(self):
         """