diff --git a/src/WorkFlowCheck.MAUI/App.xaml.cs b/src/WorkFlowCheck.MAUI/App.xaml.cs
index f32e821..dd2bd17 100644
--- a/src/WorkFlowCheck.MAUI/App.xaml.cs
+++ b/src/WorkFlowCheck.MAUI/App.xaml.cs
@@ -5,6 +5,7 @@ using Microsoft.Extensions.DependencyInjection;
 using System.Threading;
 using WorkFlowCheck.Common.DTO;
 using WorkFlowCheck.MAUI.DataLayer;
+using WorkFlowCheck.MAUI.Helper;
 using WorkFlowCheck.MAUI.Services;
 using WorkFlowCheck.MAUI.Services.Interfaces;
 
@@ -70,7 +71,7 @@ namespace WorkFlowCheck.MAUI
                 {
                     var userDTO = _userService.GetCurrentUser();
 
-                    if (userDTO != null && userDTO.Id > 0)
+                    if (userDTO != null && userDTO.Id > 0 && SystemHelper.Syncronised)
                     {
                         if (userDTO.RoleDTO?.Count > 0)
                         {
@@ -81,7 +82,13 @@ namespace WorkFlowCheck.MAUI
                                     var deviceMessageDTOList = await _syncService.DeviceMessageReadUnreaded(_userService.DeviceId.ToUpper());
                                     if (deviceMessageDTOList != null && deviceMessageDTOList.Count > 0)
                                     {
-                                        await ShowSnackbar(deviceMessageDTOList[0].Message);
+                                        await ShowSnackbar(deviceMessageDTOList[0].Message, async () => await GoToCheckListPage());
+                                        break;
+                                    }
+                                    deviceMessageDTOList = await _syncService.DeviceMessageReadUnreadedRole(roleDTO.Id);
+                                    if (deviceMessageDTOList != null && deviceMessageDTOList.Count > 0)
+                                    {
+                                        await ShowSnackbar(deviceMessageDTOList[0].Message, async () => await GoToCheckListPage());
                                         break;
                                     }
                                 }
@@ -96,8 +103,32 @@ namespace WorkFlowCheck.MAUI
                 await Task.Delay(TimeSpan.FromSeconds(5), cancellationToken);
             }
         }
-        private async Task ShowSnackbar(string message)
+        private async Task GoToCheckListPage() 
         {
+            await Shell.Current.GoToAsync("//CheckListPage");
+        }
+        private async Task ShowSnackbar(string message, Func<Task> action)
+        {
+#if ANDROID
+            try
+            {
+                var context = Android.App.Application.Context;
+                var player = Android.Media.MediaPlayer.Create(context, Resource.Raw.siren_alert);
+                player.Start();
+
+                // Ha lejátszás után el akarod engedni az erőforrást:
+                player.Completion += (s, e) =>
+                {
+                    player.Release();
+                    player.Dispose();
+                };
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine("Hanglejátszás hiba: " + ex.Message);
+            }
+#endif
+
             var visualOptions = new SnackbarOptions
             {
                 ActionButtonTextColor = Colors.Yellow,
@@ -105,17 +136,18 @@ namespace WorkFlowCheck.MAUI
                 Font = Microsoft.Maui.Font.SystemFontOfSize(16),
                 BackgroundColor = Microsoft.Maui.Graphics.Color.Parse("Red"),
                 TextColor = Colors.Yellow
-
             };
+
             var snackbar = Snackbar.Make(message,
-                                         duration: TimeSpan.FromSeconds(10),
-                                         action: () => Console.WriteLine("Snackbar dismissed"),
-                                         actionButtonText: "OK",
-                                         visualOptions: visualOptions
-                                        );
+                duration: TimeSpan.FromSeconds(10),
+                action: async () => await action(),
+                actionButtonText: "OK",
+                visualOptions: visualOptions
+            );
 
             await snackbar.Show();
         }
+
         private async Task<ApiResponseDTO<UserDTO>> CheckSecurity()
         {
             var isLogged = await SecureStorage.Default.GetAsync("WFCUser");
diff --git a/src/WorkFlowCheck.MAUI/Helper/SystemHelper.cs b/src/WorkFlowCheck.MAUI/Helper/SystemHelper.cs
index 9c29e3d..957e5a2 100644
--- a/src/WorkFlowCheck.MAUI/Helper/SystemHelper.cs
+++ b/src/WorkFlowCheck.MAUI/Helper/SystemHelper.cs
@@ -14,6 +14,7 @@ namespace WorkFlowCheck.MAUI.Helper
     public static class SystemHelper
     {
         public static string DatabaseName = "";
+        public static bool Syncronised = false;
 #if DEBUG
         public static string ApiBaseUrl = $"https://dev.wfcapi.nuvolar.hu/";
         public static string ApiKey = $"RUJeLSpSMzVASUdaRCEzUyYxRSE0VyFISFRSJC0zRzhLM1hCSDU=";
diff --git a/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs b/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs
index 510fd1b..6d1c863 100644
--- a/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs
+++ b/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs
@@ -1,5 +1,6 @@
 using Android.DeviceLock;
 using WorkFlowCheck.Common.DTO;
+using WorkFlowCheck.MAUI.Helper;
 using WorkFlowCheck.MAUI.Services.Interfaces;
 
 namespace WorkFlowCheck.MAUI.Pages.System;
@@ -49,7 +50,7 @@ public partial class SyncPage : ContentPage
                     });
                 });
             });
-
+            SystemHelper.Syncronised = true;    
             progressLabel.Text = "Szinkronizálás befejezve!";
             await Shell.Current.GoToAsync("//MainPage");
         }
diff --git a/src/WorkFlowCheck.MAUI/Platforms/Android/Resources/Raw/siren_alert.mp3 b/src/WorkFlowCheck.MAUI/Platforms/Android/Resources/Raw/siren_alert.mp3
new file mode 100644
index 0000000..7e96c27
Binary files /dev/null and b/src/WorkFlowCheck.MAUI/Platforms/Android/Resources/Raw/siren_alert.mp3 differ
diff --git a/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs b/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs
index 24055ca..6c60610 100644
--- a/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs
+++ b/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs
@@ -22,6 +22,7 @@ namespace WorkFlowCheck.MAUI.Services.Interfaces
         Task<ApiResponseDTO<string>> SyncCheckListHeader_Up(int Id, Action<double, string> reportProgress);
 
         Task<List<DeviceMessageDTO>> DeviceMessageReadUnreaded(string deviceIdBase64);
+        Task<List<DeviceMessageDTO>> DeviceMessageReadUnreadedRole(int roleId);
 
         Task<ApiResponseDTO<string>> SyncUsers_Up(Action<double, string> reportProgress);
         Task SyncUsers_Down(Action<double, string> reportProgress);
diff --git a/src/WorkFlowCheck.MAUI/Services/SyncService.cs b/src/WorkFlowCheck.MAUI/Services/SyncService.cs
index e600853..4469f2f 100644
--- a/src/WorkFlowCheck.MAUI/Services/SyncService.cs
+++ b/src/WorkFlowCheck.MAUI/Services/SyncService.cs
@@ -405,6 +405,27 @@ namespace WorkFlowCheck.MAUI.Services
             }
             return retVal;
         }
+        public async Task<List<DeviceMessageDTO>> DeviceMessageReadUnreadedRole(int roleId)
+        {
+            string endpoint = $"{_httpClient.BaseAddress}api/Sync/DeviceMessageReadUnreadedRole/{roleId}";
+            var retVal = new List<DeviceMessageDTO>();
+            try
+            {
+                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<DeviceMessageDTO>>>(endpoint);
+                if (response != null)
+                {
+                    if (response.IsSuccess)
+                    {
+                        return response.Data;
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+
+            }
+            return retVal;
+        }
 
         public async Task<ApiResponseDTO<string>> SyncUsers_Up(Action<double, string> reportProgress)
         {