diff --git a/app/app/Jobs/RouteSupplierLeadJob.php b/app/app/Jobs/RouteSupplierLeadJob.php
index bf4e1808..9a185452 100644
--- a/app/app/Jobs/RouteSupplierLeadJob.php
+++ b/app/app/Jobs/RouteSupplierLeadJob.php
@@ -278,19 +278,19 @@ class RouteSupplierLeadJob implements ShouldQueue
                         'deal_id' => $existingMergeable->id,
                         'created_at' => now(),
                     ]);
-                    // Обновляем source_crm_id и опционально received_at через
-                    // DB::table (надёжнее Eloquent save() на партиционированной таблице).
-                    $newReceivedAt = ($lead->received_at !== null && $lead->received_at->gt($existingMergeable->received_at))
-                        ? $lead->received_at
-                        : null;
-                    $updateData = ['source_crm_id' => $lead->vid, 'updated_at' => now()];
-                    if ($newReceivedAt !== null) {
-                        $updateData['received_at'] = $newReceivedAt;
-                    }
+                    // Обновляем только source_crm_id + updated_at через DB::table.
+                    // NB (регрессия 26.05.2026 04:12-05:03 UTC, 9 failed_jobs):
+                    // received_at — partition key, и lead_charges имеет FK
+                    // (deal_id, deal_received_at) с ON DELETE CASCADE, но
+                    // ON UPDATE NO ACTION (default). Любое изменение received_at
+                    // ломает FK даже в той же месячной партиции (даже DEFERRABLE
+                    // INITIALLY DEFERRED не помогает — проверка падает на COMMIT).
+                    // CSV-recovered received_at сохраняем как есть — отличие на минуты
+                    // несущественно, чем риск каскадного DELETE lead_charges.
                     DB::table('deals')
                         ->where('id', $existingMergeable->id)
                         ->where('received_at', $existingMergeable->received_at)
-                        ->update($updateData);
+                        ->update(['source_crm_id' => $lead->vid, 'updated_at' => now()]);
 
                     Log::info('supplier_lead.merged_into_csv_recovered', [
                         'supplier_lead_id' => $lead->id,
diff --git a/app/tests/Feature/Jobs/RouteSupplierLeadJobTest.php b/app/tests/Feature/Jobs/RouteSupplierLeadJobTest.php
index e7bb0011..669b1dd5 100644
--- a/app/tests/Feature/Jobs/RouteSupplierLeadJobTest.php
+++ b/app/tests/Feature/Jobs/RouteSupplierLeadJobTest.php
@@ -532,3 +532,94 @@ it('caps deal creation at 3 recipients and tags deal with subject from payload',
     expect($deals)->toHaveCount(3)
         ->and($deals->pluck('subject_code')->unique()->all())->toBe([82]);
 });
+
+it('merges webhook into csv-recovered deal even when received_at differs (Phase 2 FK fix)', function (): void {
+    // Регрессия 26.05.2026 04:12-05:03 UTC: 9 RouteSupplierLeadJob упали с
+    // SQLSTATE 23503 (FK violation) при попытке Phase 2 merge обновить deals.received_at.
+    // Причина — lead_charges имеет FK на (deal_id, deal_received_at) с
+    // ON DELETE CASCADE, но ON UPDATE NO ACTION (default). Даже DEFERRABLE INITIALLY
+    // DEFERRED не помогает — проверка падает на COMMIT. Фикс: оставить received_at
+    // CSV-recovered deal'а нетронутым (отличие на минуты несущественно).
+
+    $supplier = SupplierProject::factory()->create([
+        'platform' => 'B1',
+        'signal_type' => 'site',
+        'unique_key' => 'phase2-merge.ru',
+    ]);
+    $tenant = Tenant::factory()->create(['balance_rub' => '100000.00']);
+    $project = Project::factory()->create([
+        'tenant_id' => $tenant->id,
+        'supplier_b1_project_id' => $supplier->id,
+        'signal_type' => 'site',
+        'signal_identifier' => 'phase2-merge.ru',
+        'is_active' => true,
+    ]);
+    linkProjectToSupplier($project, $supplier);
+
+    // CSV-recovered deal: source_crm_id=NULL, received_at в прошлом.
+    $csvReceivedAt = now()->subMinutes(15);
+    DB::statement("SET LOCAL app.current_tenant_id = '{$tenant->id}'");
+    $csvDeal = Deal::create([
+        'tenant_id' => $tenant->id,
+        'source_crm_id' => null,
+        'project_id' => $project->id,
+        'phone' => '79991234567',
+        'phones' => ['79991234567'],
+        'status' => 'new',
+        'received_at' => $csvReceivedAt,
+    ]);
+
+    // LeadCharge на CSV-recovered deal — это что триггерит FK при UPDATE received_at.
+    \App\Models\LeadCharge::factory()->create([
+        'tenant_id' => $tenant->id,
+        'deal_id' => $csvDeal->id,
+        'deal_received_at' => $csvDeal->received_at,
+        'charge_source' => 'rub',
+    ]);
+
+    // Webhook lead: реальный vid, тот же phone+project, received_at позже CSV.
+    $webhookVid = 999111;
+    $webhookReceivedAt = now(); // > csvReceivedAt → старый код триггерил UPDATE received_at.
+    $lead = SupplierLead::factory()->create([
+        'supplier_project_id' => null,
+        'platform' => 'B1',
+        'vid' => $webhookVid,
+        'phone' => '79991234567',
+        'received_at' => $webhookReceivedAt,
+        'raw_payload' => [
+            'vid' => $webhookVid,
+            'project' => 'B1_phase2-merge.ru',
+            'phone' => '79991234567',
+            'phones' => ['79991234567'],
+            'time' => $webhookReceivedAt->getTimestamp(),
+        ],
+    ]);
+
+    // Не должно бросать FK violation — merge обновляет ТОЛЬКО source_crm_id.
+    runRouteJob($lead->id);
+
+    $lead->refresh();
+    expect($lead->processed_at)->not->toBeNull();
+
+    // Deal обновлён: source_crm_id заполнен webhook vid, received_at не тронут.
+    DB::statement("SET LOCAL app.current_tenant_id = '{$tenant->id}'");
+    $merged = Deal::query()
+        ->whereKey($csvDeal->id)
+        ->where('received_at', $csvReceivedAt)
+        ->first();
+    expect($merged)->not->toBeNull();
+    expect($merged->source_crm_id)->toBe($webhookVid);
+
+    // Без второго списания — balance не изменился (chargeForDelivery в merge-ветке не вызывается).
+    expect((string) $tenant->fresh()->balance_rub)->toBe('100000.00');
+
+    // supplier_lead_deliveries — линк создан.
+    $deliveryCount = DB::table('supplier_lead_deliveries')
+        ->where('supplier_lead_id', $lead->id)
+        ->where('tenant_id', $tenant->id)
+        ->count();
+    expect($deliveryCount)->toBe(1);
+
+    // Никаких дублей deals — только один с этим vid.
+    expect(Deal::query()->where('source_crm_id', $webhookVid)->count())->toBe(1);
+});