From 5edc034f8ba2421ed72383d490291211db5bcb81 Mon Sep 17 00:00:00 2001
From: Thomas Trompette <thomas.trompette@sfr.fr>
Date: Thu, 9 Apr 2026 10:43:54 +0200
Subject: [PATCH] Enqueue a snack bar on merge preview errors (#19465)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fixes https://github.com/twentyhq/twenty/issues/19312

<img width="400" height="500" alt="Capture d’écran 2026-04-08 à 18 17
57"
src="https://github.com/user-attachments/assets/41ac28b2-0208-47b4-bd85-f803c524330a"
/>
---
 .../modules/app/components/AppRouterProviders.tsx |  2 +-
 .../object-record/hooks/useMergeManyRecords.ts    |  5 ++---
 .../record-merge/hooks/usePerformMergePreview.ts  | 15 +++++++++++----
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/packages/twenty-front/src/modules/app/components/AppRouterProviders.tsx b/packages/twenty-front/src/modules/app/components/AppRouterProviders.tsx
index 4f70a863393..0dddddad957 100644
--- a/packages/twenty-front/src/modules/app/components/AppRouterProviders.tsx
+++ b/packages/twenty-front/src/modules/app/components/AppRouterProviders.tsx
@@ -6,8 +6,8 @@ import { IsMinimalMetadataReadyEffect } from '@/metadata-store/effect-components
 
 import { GotoHotkeysEffectsProvider } from '@/app/effect-components/GotoHotkeysEffectsProvider';
 import { PageChangeEffect } from '@/app/effect-components/PageChangeEffect';
-import { SignOutOnOtherTabSignOutEffect } from '@/auth/effect-components/SignOutOnOtherTabSignOutEffect';
 import { AuthProvider } from '@/auth/components/AuthProvider';
+import { SignOutOnOtherTabSignOutEffect } from '@/auth/effect-components/SignOutOnOtherTabSignOutEffect';
 import { CaptchaProvider } from '@/captcha/components/CaptchaProvider';
 import { ClientConfigProvider } from '@/client-config/components/ClientConfigProvider';
 import { ClientConfigProviderEffect } from '@/client-config/components/ClientConfigProviderEffect';
diff --git a/packages/twenty-front/src/modules/object-record/hooks/useMergeManyRecords.ts b/packages/twenty-front/src/modules/object-record/hooks/useMergeManyRecords.ts
index f24c353166b..458c8a7bd71 100644
--- a/packages/twenty-front/src/modules/object-record/hooks/useMergeManyRecords.ts
+++ b/packages/twenty-front/src/modules/object-record/hooks/useMergeManyRecords.ts
@@ -1,5 +1,6 @@
 import { useCallback, useState } from 'react';
 
+import { dispatchObjectRecordOperationBrowserEvent } from '@/browser-event/utils/dispatchObjectRecordOperationBrowserEvent';
 import { useApolloCoreClient } from '@/object-metadata/hooks/useApolloCoreClient';
 import { useObjectMetadataItem } from '@/object-metadata/hooks/useObjectMetadataItem';
 import { useGenerateDepthRecordGqlFieldsFromObject } from '@/object-record/graphql/record-gql-fields/hooks/useGenerateDepthRecordGqlFieldsFromObject';
@@ -8,10 +9,9 @@ import { useFindOneRecordQuery } from '@/object-record/hooks/useFindOneRecordQue
 import { useMergeManyRecordsMutation } from '@/object-record/hooks/useMergeManyRecordsMutation';
 import { useRefetchAggregateQueries } from '@/object-record/hooks/useRefetchAggregateQueries';
 import { type ObjectRecord } from '@/object-record/types/ObjectRecord';
-import { dispatchObjectRecordOperationBrowserEvent } from '@/browser-event/utils/dispatchObjectRecordOperationBrowserEvent';
 import { getMergeManyRecordsMutationResponseField } from '@/object-record/utils/getMergeManyRecordsMutationResponseField';
-import { getOperationName } from '~/utils/getOperationName';
 import { type RecordGqlOperationGqlRecordFields } from 'twenty-shared/types';
+import { getOperationName } from '~/utils/getOperationName';
 
 export type MergeManySettings = {
   conflictPriorityIndex: number;
@@ -88,7 +88,6 @@ export const useMergeManyRecords = <
           // Prevent cache updates during dry run to avoid overwriting original record data
           ...(preview && {
             fetchPolicy: 'no-cache',
-            errorPolicy: 'ignore',
           }),
           refetchQueries: [
             getOperationName(findOneRecordQuery) ?? '',
diff --git a/packages/twenty-front/src/modules/object-record/record-merge/hooks/usePerformMergePreview.ts b/packages/twenty-front/src/modules/object-record/record-merge/hooks/usePerformMergePreview.ts
index 48090e5470b..48bb914f9db 100644
--- a/packages/twenty-front/src/modules/object-record/record-merge/hooks/usePerformMergePreview.ts
+++ b/packages/twenty-front/src/modules/object-record/record-merge/hooks/usePerformMergePreview.ts
@@ -1,12 +1,14 @@
 import { getRecordFromRecordNode } from '@/object-record/cache/utils/getRecordFromRecordNode';
 import { useMergeManyRecords } from '@/object-record/hooks/useMergeManyRecords';
 import { useMergeRecordsSelectedRecords } from '@/object-record/record-merge/hooks/useMergeRecordsSelectedRecords';
-import { useUpsertRecordsInStore } from '@/object-record/record-store/hooks/useUpsertRecordsInStore';
-import { type ObjectRecord } from '@/object-record/types/ObjectRecord';
-import { useEffect, useState } from 'react';
 import { isMergeInProgressState } from '@/object-record/record-merge/states/mergeInProgressState';
 import { mergeSettingsState } from '@/object-record/record-merge/states/mergeSettingsState';
+import { useUpsertRecordsInStore } from '@/object-record/record-store/hooks/useUpsertRecordsInStore';
+import { type ObjectRecord } from '@/object-record/types/ObjectRecord';
+import { useSnackBar } from '@/ui/feedback/snack-bar-manager/hooks/useSnackBar';
 import { useAtomStateValue } from '@/ui/utilities/state/jotai/hooks/useAtomStateValue';
+import { type ErrorLike } from '@apollo/client';
+import { useEffect, useState } from 'react';
 
 type UseMergePreviewProps = {
   objectNameSingular: string;
@@ -30,6 +32,7 @@ export const usePerformMergePreview = ({
   const { selectedRecords } = useMergeRecordsSelectedRecords();
 
   const { upsertRecordsInStore } = useUpsertRecordsInStore();
+  const { enqueueErrorSnackBar } = useSnackBar();
 
   useEffect(() => {
     const fetchPreview = async () => {
@@ -60,8 +63,11 @@ export const usePerformMergePreview = ({
 
         setMergePreviewRecord(transformPreviewRecord);
         upsertRecordsInStore({ partialRecords: [transformPreviewRecord] });
-      } catch {
+      } catch (error) {
         setMergePreviewRecord(null);
+        enqueueErrorSnackBar({
+          apolloError: error as ErrorLike,
+        });
       } finally {
         setIsGeneratingPreview(false);
         setIsInitialized(true);
@@ -79,6 +85,7 @@ export const usePerformMergePreview = ({
     mergeManyRecords,
     upsertRecordsInStore,
     isInitialized,
+    enqueueErrorSnackBar,
   ]);
 
   return {