diff --git a/resources/views/admin/platform_orders/index.blade.php b/resources/views/admin/platform_orders/index.blade.php
index abe813c..53c4c9d 100644
--- a/resources/views/admin/platform_orders/index.blade.php
+++ b/resources/views/admin/platform_orders/index.blade.php
@@ -1069,6 +1069,7 @@
                     @php
                         $syncedId = (int) data_get($order->meta, 'subscription_activation.subscription_id', 0);
                         $syncErr = (string) (data_get($order->meta, 'subscription_activation_error.message') ?? '');
+                        $bmpaErrCompact = (string) (data_get($order->meta, 'batch_mark_paid_and_activate_error.message') ?? '');
                     @endphp
                     @if($syncedId > 0)
                         <a href="{!! $safeFullUrlWithQuery(['sync_status' => 'synced', 'page' => null]) !!}" class="link">已同步</a>
@@ -1077,6 +1078,15 @@
                     @else
                         <a href="{!! $safeFullUrlWithQuery(['sync_status' => 'unsynced', 'page' => null]) !!}" class="muted">未同步</a>
                     @endif
+
+                    @if(! $isFullView)
+                        @if($syncErr !== '')
+                            <div class="muted muted-xs text-danger">原因：{{ mb_substr($syncErr, 0, $SYNC_FAILED_REASON_TRUNCATE_LEN) }}</div>
+                        @endif
+                        @if($bmpaErrCompact !== '')
+                            <div class="muted muted-xs text-danger">BMPA：{{ mb_substr($bmpaErrCompact, 0, $SYNC_FAILED_REASON_TRUNCATE_LEN) }}</div>
+                        @endif
+                    @endif
                 </td>
                 <td>
                     @if($order->siteSubscription)
diff --git a/tests/Feature/AdminPlatformOrderIndexCompactViewSyncStatusShowsReasonTest.php b/tests/Feature/AdminPlatformOrderIndexCompactViewSyncStatusShowsReasonTest.php
new file mode 100644
index 0000000..eba44bd
--- /dev/null
+++ b/tests/Feature/AdminPlatformOrderIndexCompactViewSyncStatusShowsReasonTest.php
@@ -0,0 +1,82 @@
+<?php
+
+namespace Tests\Feature;
+
+use App\Models\Merchant;
+use App\Models\Plan;
+use App\Models\PlatformOrder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class AdminPlatformOrderIndexCompactViewSyncStatusShowsReasonTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function loginAsPlatformAdmin(): void
+    {
+        $this->seed();
+
+        $this->post('/admin/login', [
+            'email' => 'platform.admin@demo.local',
+            'password' => 'Platform@123456',
+        ])->assertRedirect('/admin');
+    }
+
+    public function test_compact_view_shows_sync_and_bmpa_error_reason_under_sync_status_cell(): void
+    {
+        $this->loginAsPlatformAdmin();
+
+        $merchant = Merchant::query()->firstOrFail();
+
+        $plan = Plan::query()->create([
+            'code' => 'compact_view_sync_reason_test',
+            'name' => '精简视图同步失败原因展示测试套餐',
+            'billing_cycle' => 'monthly',
+            'price' => 10,
+            'list_price' => 10,
+            'status' => 'active',
+            'sort' => 10,
+            'published_at' => now(),
+        ]);
+
+        PlatformOrder::query()->create([
+            'merchant_id' => $merchant->id,
+            'plan_id' => $plan->id,
+            'order_no' => 'PO_COMPACT_SYNC_REASON_0001',
+            'order_type' => 'new_purchase',
+            'status' => 'activated',
+            'payment_status' => 'paid',
+            'plan_name' => $plan->name,
+            'billing_cycle' => $plan->billing_cycle,
+            'period_months' => 1,
+            'quantity' => 1,
+            'payable_amount' => 10,
+            'paid_amount' => 10,
+            'placed_at' => now(),
+            'paid_at' => now(),
+            'activated_at' => now(),
+            'meta' => [
+                'subscription_activation_error' => [
+                    'message' => 'SIMULATED_SYNC_ERROR: remote api failed',
+                    'at' => now()->toDateTimeString(),
+                ],
+                'batch_mark_paid_and_activate_error' => [
+                    'message' => 'SIMULATED_BMPA_ERROR: validation failed',
+                    'at' => now()->toDateTimeString(),
+                ],
+            ],
+        ]);
+
+        // 默认精简视图：应显示原因（full 视图仍由“失败原因”列承载）
+        $this->get('/admin/platform-orders')
+            ->assertOk()
+            ->assertSee('原因：SIMULATED_SYNC_ERROR', false)
+            ->assertSee('BMPA：SIMULATED_BMPA_ERROR', false);
+
+        // full 视图：不强制在该单元格重复显示（避免信息过载），这里确保不出现 compact 的前缀文案
+        $this->get('/admin/platform-orders?view=full')
+            ->assertOk()
+            ->assertDontSee('原因：SIMULATED_SYNC_ERROR', false)
+            ->assertDontSee('BMPA：SIMULATED_BMPA_ERROR', false);
+    }
+}