diff --git a/engine/apps/alerts/migrations/0019_auto_20230705_1619.py b/engine/apps/alerts/migrations/0019_auto_20230705_1619.py
new file mode 100644
index 00000000..9e7febb5
--- /dev/null
+++ b/engine/apps/alerts/migrations/0019_auto_20230705_1619.py
@@ -0,0 +1,26 @@
+# Generated by Django 3.2.19 on 2023-07-05 16:19
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('user_management', '0011_auto_20230411_1358'),
+        ('slack', '0003_delete_slackactionrecord'),
+        ('alerts', '0018_remove_alertreceivechannel_integration_slack_channel_id'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='escalationpolicy',
+            name='notify_to_group',
+            field=models.ForeignKey(default=None, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='escalation_policies', to='slack.slackusergroup'),
+        ),
+        migrations.AlterField(
+            model_name='escalationpolicy',
+            name='notify_to_users_queue',
+            field=models.ManyToManyField(related_name='escalation_policy_notify_queues', to='user_management.User'),
+        ),
+    ]
diff --git a/engine/apps/auth_token/migrations/0004_alter_pluginauthtoken_organization.py b/engine/apps/auth_token/migrations/0004_alter_pluginauthtoken_organization.py
new file mode 100644
index 00000000..3b0220b2
--- /dev/null
+++ b/engine/apps/auth_token/migrations/0004_alter_pluginauthtoken_organization.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.2.19 on 2023-07-05 16:19
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('user_management', '0011_auto_20230411_1358'),
+        ('auth_token', '0003_auto_20221121_1610'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='pluginauthtoken',
+            name='organization',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='plugin_auth_tokens', to='user_management.organization'),
+        ),
+    ]
diff --git a/engine/apps/mobile_app/migrations/0009_fcmdevice.py b/engine/apps/mobile_app/migrations/0009_fcmdevice.py
new file mode 100644
index 00000000..4bc2f339
--- /dev/null
+++ b/engine/apps/mobile_app/migrations/0009_fcmdevice.py
@@ -0,0 +1,29 @@
+# Generated by Django 3.2.19 on 2023-07-05 16:37
+
+from django.db import migrations
+import django.db.models.manager
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('fcm_django', '0009_alter_fcmdevice_user'),
+        ('mobile_app', '0008_mobileappusersettings_locale'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='FCMDevice',
+            fields=[
+            ],
+            options={
+                'proxy': True,
+                'indexes': [],
+                'constraints': [],
+            },
+            bases=('fcm_django.fcmdevice',),
+            managers=[
+                ('active_objects', django.db.models.manager.Manager()),
+            ],
+        ),
+    ]
diff --git a/engine/apps/mobile_app/models.py b/engine/apps/mobile_app/models.py
index afd4ddab..2e5ec601 100644
--- a/engine/apps/mobile_app/models.py
+++ b/engine/apps/mobile_app/models.py
@@ -29,6 +29,11 @@ class ActiveFCMDeviceQuerySet(models.QuerySet):
 class FCMDevice(BaseFCMDevice):
     active_objects = ActiveFCMDeviceQuerySet.as_manager()
 
+    class Meta:
+        # don't create a table for this model..
+        # https://docs.djangoproject.com/en/dev/topics/db/models/#differences-between-proxy-inheritance-and-unmanaged-models
+        proxy = True
+
     @classmethod
     def get_active_device_for_user(cls, user: "User") -> FCMDevice | None:
         return cls.active_objects.filter(user=user).first()