diff --git a/apps/web/src/app/archive/wish/[id]/_hooks/useDeleteWish.ts b/apps/web/src/app/archive/wish/[id]/_hooks/useDeleteWish.ts
index 45b9b7ef..0439bf51 100644
--- a/apps/web/src/app/archive/wish/[id]/_hooks/useDeleteWish.ts
+++ b/apps/web/src/app/archive/wish/[id]/_hooks/useDeleteWish.ts
@@ -4,7 +4,7 @@ import { toast } from 'sonner';
 import { deleteWish } from '@/apis/deleteWish';
 import { ROUTES } from '@/consts/route';
 import { useBackWithFallback } from '@/hooks/useBackWithFallback';
-import { isGlobalNetError } from '@/utils/apiError';
+import { getApiErrorStatus, isGlobalNetError } from '@/utils/apiError';
 import { getApiErrorMessage } from '@/utils/getApiErrorMessage';
 
 /** 위시 단건 삭제 */
@@ -27,6 +27,8 @@ export const useDeleteWish = (wishId: number) => {
        * 404: 위시 존재하지 않음
        */
       toast.error(getApiErrorMessage(error));
+
+      if (getApiErrorStatus(error) === 404) backWithFallback(ROUTES.WISHLIST);
     },
   });
 
diff --git a/apps/web/src/app/archive/wish/[id]/_hooks/usePatchWish.ts b/apps/web/src/app/archive/wish/[id]/_hooks/usePatchWish.ts
index 5b7c6540..878b41b0 100644
--- a/apps/web/src/app/archive/wish/[id]/_hooks/usePatchWish.ts
+++ b/apps/web/src/app/archive/wish/[id]/_hooks/usePatchWish.ts
@@ -3,6 +3,7 @@ import { useRouter } from 'next/navigation';
 import { toast } from 'sonner';
 
 import { ROUTES } from '@/consts/route';
+import { useBackWithFallback } from '@/hooks/useBackWithFallback';
 import { getApiErrorStatus, isGlobalNetError } from '@/utils/apiError';
 import { getApiErrorMessage } from '@/utils/getApiErrorMessage';
 
@@ -11,6 +12,7 @@ import type { PatchWishRequestT } from '../_types/wish';
 
 export const usePatchWish = (wishId: number) => {
   const router = useRouter();
+  const backWithFallback = useBackWithFallback();
   const queryClient = useQueryClient();
 
   const { mutate: patchWishMutation, isPending: isPatchWishPending } = useMutation({
@@ -39,7 +41,7 @@ export const usePatchWish = (wishId: number) => {
        * 404: 위시 존재하지 않음
        */
       const status = getApiErrorStatus(error);
-      if (status === 403 || status === 404) router.replace(ROUTES.WISHLIST);
+      if (status === 403 || status === 404) backWithFallback(ROUTES.WISHLIST);
     },
   });
 
diff --git a/apps/web/src/app/notification/_utils/getNotificationRoute.test.ts b/apps/web/src/app/notification/_utils/getNotificationRoute.test.ts
index 14dd4425..236a1fe9 100644
--- a/apps/web/src/app/notification/_utils/getNotificationRoute.test.ts
+++ b/apps/web/src/app/notification/_utils/getNotificationRoute.test.ts
@@ -9,6 +9,7 @@ const ITEM_TYPES: NotificationTypeT[] = [
   'ITEM_PARSING_INCOMPLETE',
   'ITEM_PARSING_FAILED',
   'ITEM_PARSING_RECOVERED',
+  'ITEM_PARSING_MERGED',
   'ITEM_REFRESH_COMPLETED',
 ];
 
diff --git a/apps/web/src/app/notification/_utils/getNotificationRoute.ts b/apps/web/src/app/notification/_utils/getNotificationRoute.ts
index 76f71ecd..11f4d976 100644
--- a/apps/web/src/app/notification/_utils/getNotificationRoute.ts
+++ b/apps/web/src/app/notification/_utils/getNotificationRoute.ts
@@ -20,6 +20,7 @@ export const getNotificationRoute = (
     case 'ITEM_PARSING_INCOMPLETE':
     case 'ITEM_PARSING_FAILED':
     case 'ITEM_PARSING_RECOVERED':
+    case 'ITEM_PARSING_MERGED':
     case 'ITEM_REFRESH_COMPLETED':
     case 'ITEM_REFRESH_FAILED':
       if (extra?.kind === 'TOURNAMENT' && extra.tournamentId) {
diff --git a/apps/web/src/hooks/useNotificationSSE.tsx b/apps/web/src/hooks/useNotificationSSE.tsx
index d8bec0da..fc1c980a 100644
--- a/apps/web/src/hooks/useNotificationSSE.tsx
+++ b/apps/web/src/hooks/useNotificationSSE.tsx
@@ -215,6 +215,16 @@ export const useNotificationSSE = (enabled: boolean) => {
                 case 'TOURNAMENT_ITEM_PARSED':
                   queryClient.invalidateQueries({ queryKey: ['tournament', payload.tournamentId] });
                   break;
+                case 'TOURNAMENT_ITEM_MERGED':
+                  queryClient.invalidateQueries({ queryKey: ['tournament', payload.tournamentId] });
+                  queryClient.invalidateQueries({
+                    queryKey: [
+                      'tournamentItem',
+                      payload.tournamentId,
+                      payload.mergedIntoTournamentItemId,
+                    ],
+                  });
+                  break;
                 case 'UNREAD_COUNT_CHANGED':
                   void queryClient.refetchQueries({
                     queryKey: QUERY_KEYS.NOTIFICATION.LIST,
@@ -254,6 +264,7 @@ export const useNotificationSSE = (enabled: boolean) => {
                 case 'ITEM_REFRESH_COMPLETED':
                 case 'ITEM_PARSING_COMPLETED':
                 case 'ITEM_PARSING_RECOVERED':
+                case 'ITEM_PARSING_MERGED':
                   if (payload.kind === 'TOURNAMENT' && payload.tournamentId != null) {
                     queryClient.invalidateQueries({
                       queryKey: ['tournament', payload.tournamentId],
diff --git a/apps/web/src/types/notification.ts b/apps/web/src/types/notification.ts
index 30e1fb12..07bf0a8f 100644
--- a/apps/web/src/types/notification.ts
+++ b/apps/web/src/types/notification.ts
@@ -12,6 +12,7 @@ export type NotificationTypeT =
   | 'ITEM_PARSING_INCOMPLETE'
   | 'ITEM_PARSING_FAILED'
   | 'ITEM_PARSING_RECOVERED'
+  | 'ITEM_PARSING_MERGED'
   | 'ITEM_REFRESH_COMPLETED'
   | 'ITEM_REFRESH_FAILED'
   | 'ANNOUNCEMENT';
@@ -52,6 +53,12 @@ export type SilentSyncSsePayloadT =
         | (typeof ITEM_STATUS)['INCOMPLETE']
         | (typeof ITEM_STATUS)['FAILED'];
     }
+  | {
+      type: 'TOURNAMENT_ITEM_MERGED';
+      tournamentId: number;
+      tournamentItemId: number;
+      mergedIntoTournamentItemId: number;
+    }
   | {
       type: 'UNREAD_COUNT_CHANGED';
       unreadCount: number;
diff --git a/apps/web/src/utils/pushNotificationRoute.test.ts b/apps/web/src/utils/pushNotificationRoute.test.ts
index 35b7c21f..76f83775 100644
--- a/apps/web/src/utils/pushNotificationRoute.test.ts
+++ b/apps/web/src/utils/pushNotificationRoute.test.ts
@@ -13,6 +13,7 @@ describe('getPushNotificationRoute', () => {
     { type: 'ITEM_PARSING_INCOMPLETE', refId: 4, kind: 'TOURNAMENT', tournamentId: 8 },
     { type: 'ITEM_PARSING_FAILED', refId: 5, kind: 'TOURNAMENT', tournamentId: 9 },
     { type: 'ITEM_PARSING_RECOVERED', refId: 6, kind: 'TOURNAMENT', tournamentId: 10 },
+    { type: 'ITEM_PARSING_MERGED', refId: 9, kind: 'WISH' },
     { type: 'ITEM_REFRESH_COMPLETED', refId: 7, kind: 'WISH' },
     { type: 'ITEM_REFRESH_FAILED', refId: 8, kind: 'WISH' },
   ];
diff --git a/apps/web/src/utils/pushNotificationRoute.ts b/apps/web/src/utils/pushNotificationRoute.ts
index 1758c283..0fe7e1eb 100644
--- a/apps/web/src/utils/pushNotificationRoute.ts
+++ b/apps/web/src/utils/pushNotificationRoute.ts
@@ -11,6 +11,7 @@ export const getPushNotificationRoute = (payload: DeepLinkPayloadT) => {
     case PUSH_NOTIFICATION_TYPE.ITEM_PARSING_INCOMPLETE:
     case PUSH_NOTIFICATION_TYPE.ITEM_PARSING_FAILED:
     case PUSH_NOTIFICATION_TYPE.ITEM_PARSING_RECOVERED:
+    case PUSH_NOTIFICATION_TYPE.ITEM_PARSING_MERGED:
     case PUSH_NOTIFICATION_TYPE.ITEM_REFRESH_COMPLETED:
     case PUSH_NOTIFICATION_TYPE.ITEM_REFRESH_FAILED:
       if (payload.kind === 'TOURNAMENT' && payload.tournamentId) {
diff --git a/packages/core/src/consts/webBridge.ts b/packages/core/src/consts/webBridge.ts
index 5f88821c..eafeae51 100644
--- a/packages/core/src/consts/webBridge.ts
+++ b/packages/core/src/consts/webBridge.ts
@@ -66,6 +66,7 @@ export const PUSH_NOTIFICATION_TYPE = {
   ITEM_PARSING_INCOMPLETE: 'ITEM_PARSING_INCOMPLETE',
   ITEM_PARSING_FAILED: 'ITEM_PARSING_FAILED',
   ITEM_PARSING_RECOVERED: 'ITEM_PARSING_RECOVERED',
+  ITEM_PARSING_MERGED: 'ITEM_PARSING_MERGED',
   ITEM_REFRESH_COMPLETED: 'ITEM_REFRESH_COMPLETED',
   ITEM_REFRESH_FAILED: 'ITEM_REFRESH_FAILED',
 } as const;
diff --git a/packages/core/src/types/pushNotification.ts b/packages/core/src/types/pushNotification.ts
index af27a0ab..4b30e4a3 100644
--- a/packages/core/src/types/pushNotification.ts
+++ b/packages/core/src/types/pushNotification.ts
@@ -58,6 +58,7 @@ export type DeepLinkPayloadT =
         | 'ITEM_PARSING_INCOMPLETE'
         | 'ITEM_PARSING_FAILED'
         | 'ITEM_PARSING_RECOVERED'
+        | 'ITEM_PARSING_MERGED'
         | 'ITEM_REFRESH_COMPLETED'
         | 'ITEM_REFRESH_FAILED';
       refId: number;