From f4303d8d601a7d9be43ffb02c2f2de2252251531 Mon Sep 17 00:00:00 2001
From: Syed Ali Shahbaz <52925846+alishaz-polymath@users.noreply.github.com>
Date: Wed, 14 Jan 2026 08:38:19 +0400
Subject: [PATCH] icalsequence fix (#26815)

---
 packages/lib/builders/CalendarEvent/class.ts                   | 1 +
 .../routers/viewer/bookings/requestReschedule.handler.ts       | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/lib/builders/CalendarEvent/class.ts b/packages/lib/builders/CalendarEvent/class.ts
index 2e5d7d07c8..39e9a55078 100644
--- a/packages/lib/builders/CalendarEvent/class.ts
+++ b/packages/lib/builders/CalendarEvent/class.ts
@@ -34,6 +34,7 @@ class CalendarEventClass implements CalendarEvent {
   additionalNotes?: string | null | undefined;
   recurrence?: string;
   iCalUID?: string | null;
+  iCalSequence?: number | null;
   customReplyToEmail?: string | null;
   organizationId?: number | null;
 
diff --git a/packages/trpc/server/routers/viewer/bookings/requestReschedule.handler.ts b/packages/trpc/server/routers/viewer/bookings/requestReschedule.handler.ts
index 5e60f3bde1..96437685e6 100644
--- a/packages/trpc/server/routers/viewer/bookings/requestReschedule.handler.ts
+++ b/packages/trpc/server/routers/viewer/bookings/requestReschedule.handler.ts
@@ -166,6 +166,7 @@ export const requestRescheduleHandler = async ({ ctx, input, source }: RequestRe
     ),
     organizer,
     iCalUID: bookingToReschedule.iCalUID,
+    iCalSequence: (bookingToReschedule.iCalSequence ?? 0) + 1,
     customReplyToEmail: bookingToReschedule.eventType?.customReplyToEmail,
     team: bookingToReschedule.eventType?.team
       ? {
@@ -274,7 +275,7 @@ export const requestRescheduleHandler = async ({ ctx, input, source }: RequestRe
     cancelledBy: user.email,
     eventTypeId: bookingToReschedule.eventTypeId,
     length: bookingToReschedule.eventType?.length ?? null,
-    iCalSequence: (bookingToReschedule.iCalSequence ?? 0) + 1,
+    iCalSequence: builder.calendarEvent.iCalSequence,
     eventTitle: bookingToReschedule.eventType?.title ?? null,
     requestReschedule: true,
   });