diff --git a/scim_app/core/__init__.py b/scim_app/core/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/scim_app/core/admin.py b/scim_app/core/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/scim_app/core/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/scim_app/core/apps.py b/scim_app/core/apps.py
new file mode 100644
index 0000000..bc42f7e
--- /dev/null
+++ b/scim_app/core/apps.py
@@ -0,0 +1,14 @@
+from django.apps import AppConfig
+from django.db.models.signals import post_save
+
+
+from . import signals
+
+class CoreConfig(AppConfig):
+    default_auto_field = 'django.db.models.BigAutoField'
+    name = 'core'
+
+    def ready(self) -> None:
+        from oauth2_provider.models import get_access_token_model
+        TokenModel = get_access_token_model()
+        post_save.connect(signals.set_user_on_application_token, sender=TokenModel)
diff --git a/scim_app/core/migrations/__init__.py b/scim_app/core/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/scim_app/core/models.py b/scim_app/core/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/scim_app/core/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/scim_app/core/signals.py b/scim_app/core/signals.py
new file mode 100644
index 0000000..ff4ce38
--- /dev/null
+++ b/scim_app/core/signals.py
@@ -0,0 +1,5 @@
+def set_user_on_application_token(sender, **kwargs):
+    instance = kwargs['instance']
+    if kwargs['created'] and not instance.user:
+        instance.user = sender.user.get_queryset().first()
+        instance.save()
diff --git a/scim_app/core/tests.py b/scim_app/core/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/scim_app/core/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/scim_app/core/views.py b/scim_app/core/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/scim_app/core/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/scim_app/scim_app/settings.py b/scim_app/scim_app/settings.py
index 52c4367..8bcc78d 100644
--- a/scim_app/scim_app/settings.py
+++ b/scim_app/scim_app/settings.py
@@ -43,6 +43,8 @@ INSTALLED_APPS = [
 
     'django_scim',
     'oauth2_provider',
+
+    'core',
 ]
 
 MIDDLEWARE = [