diff --git a/engine/engine/management/commands/restart_acknowledge_reminder.py b/engine/engine/management/commands/restart_acknowledge_reminder.py
new file mode 100644
index 00000000..69622053
--- /dev/null
+++ b/engine/engine/management/commands/restart_acknowledge_reminder.py
@@ -0,0 +1,73 @@
+from celery import uuid as celery_uuid
+from django.core.management import BaseCommand
+
+from apps.alerts.models import AlertGroup
+from apps.alerts.tasks import acknowledge_reminder_task
+from apps.user_management.models import Organization
+
+
+class Command(BaseCommand):
+    """
+    Restart acknowledge_reminder_task for organization. Used for migrated organizations.
+
+    Usage example:
+    `python manage.py restart_acknowledge_reminder -ppk "organization ppk"` - restart task for alert groups from
+    organizations with this public pk
+    """
+
+    def add_arguments(self, parser):
+        group = parser.add_mutually_exclusive_group(required=True)
+
+        group.add_argument(
+            "-ppk", "--organization_ppk", type=str, help="Organization public pks to restart reminder for."
+        )
+
+    def handle(self, *args, **options):
+        organization_ppk = options["organization_ppk"]
+        organization = Organization.objects.get(public_primary_key=organization_ppk)
+        self.stdout.write(
+            f"Processing restart acknowledge reminder for alert groups from organization "
+            f"(id: {organization.id}, ppk: {organization.public_primary_key})..."
+        )
+        if organization.acknowledge_remind_timeout == 0:
+            self.stdout.write("Organization doesn't have acknowledge reminder setting set")
+            return
+
+        alert_groups = AlertGroup.objects.filter(
+            acknowledged=True,
+            resolved=False,
+            silenced=False,
+            maintenance_uuid__isnull=True,
+            root_alert_group=None,
+            channel__organization=organization,
+        )
+        if not alert_groups:
+            self.stdout.write("No affected alert groups.")
+            return
+
+        self.stdout.write(f"Affected alert groups count: {alert_groups.count()}.")
+
+        tasks = []
+        alert_groups_to_update = []
+
+        for alert_group in alert_groups:
+            task_id = celery_uuid()
+            countdown = Organization.ACKNOWLEDGE_REMIND_DELAY[organization.acknowledge_remind_timeout]
+            alert_group.last_unique_unacknowledge_process_id = task_id
+            alert_groups_to_update.append(alert_group)
+            tasks.append(
+                acknowledge_reminder_task.signature(
+                    args=(alert_group.pk, task_id), immutable=True, task_id=task_id, countdown=countdown
+                )
+            )
+
+        AlertGroup.objects.bulk_update(
+            alert_groups_to_update,
+            ["last_unique_unacknowledge_process_id"],
+            batch_size=5000,
+        )
+
+        for task in tasks:
+            task.apply_async()
+
+        self.stdout.write("Acknowledge reminder has been restarted for affected alert groups")