diff --git a/app/dashboard/views/lifetime_licence.py b/app/dashboard/views/lifetime_licence.py
index 2fc4c56b..14d7f92a 100644
--- a/app/dashboard/views/lifetime_licence.py
+++ b/app/dashboard/views/lifetime_licence.py
@@ -1,3 +1,4 @@
+import arrow
 from flask import render_template, flash, redirect, url_for
 from flask_login import login_required, current_user
 from flask_wtf import FlaskForm
@@ -7,6 +8,8 @@ from app.config import ADMIN_EMAIL
 from app.dashboard.base import dashboard_bp
 from app.db import Session
 from app.email_utils import send_email
+from app.events.event_dispatcher import EventDispatcher
+from app.events.generated.event_pb2 import UserPlanChanged, EventContent
 from app.models import LifetimeCoupon
 
 
@@ -40,6 +43,14 @@ def lifetime_licence():
             current_user.lifetime_coupon_id = coupon.id
             if coupon.paid:
                 current_user.paid_lifetime = True
+            EventDispatcher.send_event(
+                user=current_user,
+                content=EventContent(
+                    user_plan_change=UserPlanChanged(
+                        plan_end_time=arrow.get("2100-01-01")
+                    )
+                ),
+            )
             Session.commit()
 
             # notify admin
diff --git a/oneshot/send_lifetime_user_events.py b/oneshot/send_lifetime_user_events.py
new file mode 100644
index 00000000..8ee59485
--- /dev/null
+++ b/oneshot/send_lifetime_user_events.py
@@ -0,0 +1,60 @@
+#!/usr/bin/env python3
+import argparse
+import time
+
+import arrow
+from sqlalchemy import func
+
+from app.events.event_dispatcher import EventDispatcher
+from app.events.generated.event_pb2 import UserPlanChanged, EventContent
+from app.models import PartnerUser
+from app.db import Session
+
+parser = argparse.ArgumentParser(
+    prog="Backfill alias", description="Send lifetime users to proton"
+)
+parser.add_argument(
+    "-s", "--start_pu_id", default=0, type=int, help="Initial partner_user_id"
+)
+parser.add_argument(
+    "-e", "--end_pu_id", default=0, type=int, help="Last partner_user_id"
+)
+
+args = parser.parse_args()
+pu_id_start = args.start_pu_id
+max_pu_id = args.end_pu_id
+if max_pu_id == 0:
+    max_pu_id = Session.query(func.max(PartnerUser.id)).scalar()
+
+print(f"Checking partner user {pu_id_start} to {max_pu_id}")
+step = 100
+done = 0
+start_time = time.time()
+with_lifetime = 0
+for batch_start in range(pu_id_start, max_pu_id, step):
+    partner_users = (
+        Session.query(PartnerUser).filter(
+            PartnerUser.id >= batch_start, PartnerUser.id < batch_start + step
+        )
+    ).all()
+    for partner_user in partner_users:
+        done += 1
+        if not partner_user.user.lifetime:
+            continue
+        with_lifetime += 1
+        event = UserPlanChanged(plan_end_time=arrow.get("2100-01-01"))
+        EventDispatcher.send_event(
+            partner_user.user, EventContent(user_plan_change=event)
+        )
+        Session.flush()
+    Session.commit()
+    elapsed = time.time() - start_time
+    last_batch_id = batch_start + step
+    time_per_alias = elapsed / (last_batch_id)
+    remaining = max_pu_id - last_batch_id
+    time_remaining = remaining / time_per_alias
+    hours_remaining = time_remaining / 60.0
+    print(
+        f"\PartnerUser {batch_start}/{max_pu_id} {done} {hours_remaining:.2f} mins remaining"
+    )
+print(f"With SL lifetime {with_lifetime}")