diff --git a/scim_app/core/migrations/0002_auto_20220118_1452.py b/scim_app/core/migrations/0002_auto_20220118_1452.py
new file mode 100644
index 0000000..3e0842a
--- /dev/null
+++ b/scim_app/core/migrations/0002_auto_20220118_1452.py
@@ -0,0 +1,37 @@
+# Generated by Django 3.2 on 2022-01-18 14:52
+
+import django.contrib.auth.models
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('auth', '0012_alter_user_first_name_max_length'),
+        ('core', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Group',
+            fields=[
+                ('group_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='auth.group')),
+                ('scim_id', models.CharField(blank=True, default=None, help_text='A unique identifier for a SCIM resource as defined by the service provider.', max_length=254, null=True, unique=True, verbose_name='SCIM ID')),
+                ('scim_external_id', models.CharField(blank=True, db_index=True, default=None, help_text='A string that is an identifier for the resource as defined by the provisioning client.', max_length=254, null=True, verbose_name='SCIM External ID')),
+                ('scim_display_name', models.CharField(blank=True, db_index=True, default=None, help_text='A human-readable name for the Group.', max_length=254, null=True, verbose_name='SCIM Display Name')),
+            ],
+            options={
+                'abstract': False,
+            },
+            bases=('auth.group', models.Model),
+            managers=[
+                ('objects', django.contrib.auth.models.GroupManager()),
+            ],
+        ),
+        migrations.AlterField(
+            model_name='user',
+            name='groups',
+            field=models.ManyToManyField(to='core.Group'),
+        ),
+    ]
diff --git a/scim_app/core/models.py b/scim_app/core/models.py
index e471679..84e6f13 100644
--- a/scim_app/core/models.py
+++ b/scim_app/core/models.py
@@ -1,7 +1,19 @@
-from django.contrib.auth.models import AbstractUser
+from django.contrib.auth.models import AbstractUser, Group
 from django.db import models
 
-from django_scim.models import AbstractSCIMUserMixin
+from django_scim.models import AbstractSCIMUserMixin, AbstractSCIMGroupMixin
+
+class Group(AbstractSCIMGroupMixin, Group):
+    def __str__(self) -> str:
+        return self.scim_display_name
+
 
 class User(AbstractSCIMUserMixin, AbstractUser):
-    pass
+    groups = models.ManyToManyField(Group)
+
+    @property
+    def scim_groups(self):
+        return self.groups
+
+    def __str__(self) -> str:
+        return self.email