diff --git a/app/Jobs/SendMessageToTelegramJob.php b/app/Jobs/SendMessageToTelegramJob.php
index 0cb1a7124d..babebad956 100644
--- a/app/Jobs/SendMessageToTelegramJob.php
+++ b/app/Jobs/SendMessageToTelegramJob.php
@@ -8,6 +8,7 @@ use Illuminate\Bus\Queueable;
 use Illuminate\Contracts\Queue\ShouldBeEncrypted;
 use Illuminate\Contracts\Queue\ShouldQueue;
 use Illuminate\Foundation\Bus\Dispatchable;
+use Illuminate\Http\Client\Response;
 use Illuminate\Queue\InteractsWithQueue;
 use Illuminate\Queue\SerializesModels;
 use Illuminate\Support\Facades\Http;
@@ -49,6 +50,19 @@ class SendMessageToTelegramJob implements ShouldBeEncrypted, ShouldQueue
      * Execute the job.
      */
     public function handle(): void
+    {
+        $response = $this->sendMessage();
+
+        // 401: invalid bot token, 403: the bot was blocked or removed from the chat, 400 "chat not found": wrong chat ID.
+        $isConfigurationError = in_array($response->status(), [401, 403], true)
+            || ($response->status() === 400 && Str::contains((string) $response->json('description'), 'chat not found', true));
+        $this->handleNotificationResponse($response, 'Telegram', $isConfigurationError);
+    }
+
+    /**
+     * Call the Telegram sendMessage API and return its response without handling errors.
+     */
+    public function sendMessage(): Response
     {
         $url = 'https://api.telegram.org/bot'.$this->token.'/sendMessage';
         $inlineButtons = [];
@@ -78,11 +92,7 @@ class SendMessageToTelegramJob implements ShouldBeEncrypted, ShouldQueue
         if ($this->threadId) {
             $payload['message_thread_id'] = $this->threadId;
         }
-        $response = Http::post($url, $payload);
 
-        // 401: invalid bot token, 403: the bot was blocked or removed from the chat, 400 "chat not found": wrong chat ID.
-        $isConfigurationError = in_array($response->status(), [401, 403], true)
-            || ($response->status() === 400 && Str::contains((string) $response->json('description'), 'chat not found', true));
-        $this->handleNotificationResponse($response, 'Telegram', $isConfigurationError);
+        return Http::post($url, $payload);
     }
 }
diff --git a/app/Livewire/Notifications/Telegram.php b/app/Livewire/Notifications/Telegram.php
index cd7bea60cd..f6edb89d3e 100644
--- a/app/Livewire/Notifications/Telegram.php
+++ b/app/Livewire/Notifications/Telegram.php
@@ -2,6 +2,7 @@
 
 namespace App\Livewire\Notifications;
 
+use App\Jobs\SendMessageToTelegramJob;
 use App\Livewire\Notifications\Concerns\TogglesNotificationEvents;
 use App\Models\Team;
 use App\Models\TelegramNotificationSettings;
@@ -306,7 +307,23 @@ class Telegram extends Component
     {
         try {
             $this->authorize('sendTest', $this->settings);
-            $this->team->notify(new Test(channel: 'telegram'));
+
+            // Send synchronously so that the user sees the error from Telegram (a queued test always "succeeds").
+            $message = (new Test(channel: 'telegram'))->toTelegram();
+            $response = (new SendMessageToTelegramJob(
+                text: $message['message'],
+                buttons: $message['buttons'],
+                token: (string) $this->settings->telegram_token,
+                chatId: (string) $this->settings->telegram_chat_id,
+            ))->sendMessage();
+
+            if ($response->failed()) {
+                $reason = $response->json('description') ?? "HTTP {$response->status()}";
+                $this->dispatch('error', 'Telegram rejected the test notification.', e($reason));
+
+                return;
+            }
+
             $this->dispatch('success', 'Test notification sent.');
         } catch (\Throwable $e) {
             return handleError($e, $this);
diff --git a/tests/Feature/TelegramTestNotificationTest.php b/tests/Feature/TelegramTestNotificationTest.php
new file mode 100644
index 0000000000..ce9640406a
--- /dev/null
+++ b/tests/Feature/TelegramTestNotificationTest.php
@@ -0,0 +1,52 @@
+<?php
+
+use App\Livewire\Notifications\Telegram as TelegramNotification;
+use App\Models\InstanceSettings;
+use App\Models\Team;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Illuminate\Support\Facades\Http;
+use Illuminate\Support\Facades\Queue;
+use Livewire\Livewire;
+
+uses(RefreshDatabase::class);
+
+beforeEach(function () {
+    InstanceSettings::unguarded(fn () => InstanceSettings::updateOrCreate(['id' => 0], ['id' => 0]));
+
+    $this->team = Team::factory()->create();
+    $this->team->telegramNotificationSettings->update([
+        'telegram_enabled' => true,
+        'telegram_token' => 'bot-token',
+        'telegram_chat_id' => '123456',
+    ]);
+
+    $admin = User::factory()->create();
+    $admin->teams()->attach($this->team, ['role' => 'admin']);
+    $this->actingAs($admin);
+    session(['currentTeam' => $this->team]);
+    Queue::fake();
+});
+
+it('shows the error from Telegram when the test notification is rejected', function () {
+    Http::fake(['api.telegram.org/*' => Http::response(['ok' => false, 'description' => 'Bad Request: chat not found'], 400)]);
+
+    Livewire::test(TelegramNotification::class)
+        ->call('sendTestNotification')
+        ->assertDispatched('error', 'Telegram rejected the test notification.', 'Bad Request: chat not found')
+        ->assertNotDispatched('success');
+
+    Queue::assertNothingPushed();
+});
+
+it('sends the test notification synchronously and reports success', function () {
+    Http::fake(['api.telegram.org/*' => Http::response(['ok' => true, 'result' => []])]);
+
+    Livewire::test(TelegramNotification::class)
+        ->call('sendTestNotification')
+        ->assertDispatched('success', 'Test notification sent.');
+
+    Http::assertSent(fn ($request) => $request->url() === 'https://api.telegram.org/botbot-token/sendMessage'
+        && $request['chat_id'] === '123456');
+    Queue::assertNothingPushed();
+});