diff --git a/app/Services/Meet/EventMeetSyncService.php b/app/Services/Meet/EventMeetSyncService.php
index e7b8004..9e9f0fe 100644
--- a/app/Services/Meet/EventMeetSyncService.php
+++ b/app/Services/Meet/EventMeetSyncService.php
@@ -78,23 +78,29 @@ class EventMeetSyncService
                 $settings['panel_discussions'] = true;
             }
 
+            $roomPayload = [
+                'title' => $title,
+                'description' => trim((string) ($content['description'] ?? '')) ?: null,
+                'type' => $roomType,
+                'scheduled_at' => $scheduledAt,
+                'duration_minutes' => max(15, (int) ($session['duration_minutes'] ?? 60)),
+                'timezone' => config('app.timezone', 'UTC'),
+                'settings' => $settings,
+                'invite_emails' => $inviteEmails,
+                'source' => [
+                    'app' => 'events',
+                    'entity_type' => 'virtual_session',
+                    'entity_id' => $sessionId,
+                    'event_id' => (string) $event->id,
+                ],
+            ];
+
+            $existingRoomUuid = trim((string) ($session['meet_room_uuid'] ?? ''));
+
             try {
-                $result = $client->upsertRoom([
-                    'title' => $title,
-                    'description' => trim((string) ($content['description'] ?? '')) ?: null,
-                    'type' => $roomType,
-                    'scheduled_at' => $scheduledAt,
-                    'duration_minutes' => max(15, (int) ($session['duration_minutes'] ?? 60)),
-                    'timezone' => config('app.timezone', 'UTC'),
-                    'settings' => $settings,
-                    'invite_emails' => $inviteEmails,
-                    'source' => [
-                        'app' => 'events',
-                        'entity_type' => 'virtual_session',
-                        'entity_id' => $sessionId,
-                        'event_id' => (string) $event->id,
-                    ],
-                ]);
+                $result = $existingRoomUuid !== ''
+                    ? $client->updateRoom($existingRoomUuid, $roomPayload)
+                    : $client->upsertRoom($roomPayload);
             } catch (\Throwable $e) {
                 Log::warning('Events Meet sync failed', [
                     'event_id' => $event->id,
diff --git a/tests/Feature/ServiceMeetLinkTest.php b/tests/Feature/ServiceMeetLinkTest.php
index 95b4824..5460a0f 100644
--- a/tests/Feature/ServiceMeetLinkTest.php
+++ b/tests/Feature/ServiceMeetLinkTest.php
@@ -26,6 +26,10 @@ class ServiceMeetLinkTest extends TestCase
                 'room' => ['uuid' => 'room-uuid-123'],
                 'join_url' => 'https://meet.ladill.com/r/room-uuid-123',
             ], 201),
+            config('meet.url').'/rooms/*' => Http::response([
+                'room' => ['uuid' => 'room-uuid-123'],
+                'join_url' => 'https://meet.ladill.com/r/room-uuid-123',
+            ], 200),
         ]);
 
         $this->owner = User::factory()->create(['public_id' => 'usr_meet_link']);
@@ -87,4 +91,71 @@ class ServiceMeetLinkTest extends TestCase
         $sessions = $event->fresh()->content()['virtual_sessions'];
         $this->assertSame('room-uuid-123', $sessions[0]['meet_room_uuid'] ?? null);
     }
+
+    public function test_link_room_patches_existing_meet_room_with_programme_snapshot(): void
+    {
+        $programme = QrCode::create([
+            'user_id' => $this->owner->id,
+            'short_code' => 'prog-link-1',
+            'type' => QrCode::TYPE_ITINERARY,
+            'label' => 'Summit programme',
+            'payload' => [
+                'content' => [
+                    'title' => 'Summit programme',
+                    'days' => [
+                        [
+                            'label' => 'Day 1',
+                            'items' => [
+                                ['ref' => 'item-1', 'time' => '09:00', 'title' => 'Opening keynote', 'host' => 'Alex'],
+                            ],
+                        ],
+                    ],
+                ],
+                'style' => [],
+            ],
+            'is_active' => true,
+        ]);
+
+        $event = QrCode::create([
+            'user_id' => $this->owner->id,
+            'short_code' => 'evt-prog-link',
+            'type' => QrCode::TYPE_EVENT,
+            'label' => 'Summit',
+            'payload' => [
+                'content' => [
+                    'title' => 'Summit',
+                    'format' => 'virtual',
+                    'programme_qr_id' => $programme->id,
+                    'virtual_sessions' => [],
+                ],
+                'style' => [],
+            ],
+            'is_active' => true,
+        ]);
+
+        Http::fake([
+            config('meet.url').'/rooms/existing-room-uuid' => Http::response([
+                'room' => ['uuid' => 'existing-room-uuid'],
+                'join_url' => 'https://meet.ladill.com/r/existing-room-uuid',
+            ], 200),
+        ]);
+
+        $this->withToken('test-meet-key')
+            ->postJson('/api/service/v1/events/'.$event->id.'/link-room', [
+                'owner_ref' => $this->owner->public_id,
+                'meet_room_uuid' => 'existing-room-uuid',
+                'meet_room_type' => 'town_hall',
+                'join_url' => 'https://meet.ladill.com/r/existing-room-uuid',
+                'title' => 'Opening keynote',
+            ])
+            ->assertOk()
+            ->assertJsonPath('event.meet_room_uuid', 'existing-room-uuid');
+
+        Http::assertSent(function ($request) {
+            return $request->method() === 'PATCH'
+                && str_ends_with($request->url(), '/rooms/existing-room-uuid')
+                && ($request['settings']['programme_snapshot']['title'] ?? '') === 'Summit programme'
+                && ($request['settings']['programme_snapshot']['days'][0]['items'][0]['title'] ?? '') === 'Opening keynote';
+        });
+    }
 }