diff --git a/CHANGELOG.md b/CHANGELOG.md
index 105550a..7dd7e18 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v4.2.25 (Oct 21, 2024)
+
+### Improvements
+- Fixed the reconnection bug while entering foreground
+- Modified the endpoint of sbm metric
+
 ## v4.2.24 (Oct 8, 2024)
 
 ### Improvements
diff --git a/README.md b/README.md
index b9ada9f..8fafb29 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ Before installing Sendbird Chat SDK, you need to create a Sendbird application o
 
 ```yaml
 dependencies:
-  sendbird_chat_sdk: ^4.2.24
+  sendbird_chat_sdk: ^4.2.25
 ```
 
 - Run `flutter pub get` command in your project directory.
diff --git a/lib/src/internal/main/chat/chat.dart b/lib/src/internal/main/chat/chat.dart
index aa81282..2fc9c1f 100644
--- a/lib/src/internal/main/chat/chat.dart
+++ b/lib/src/internal/main/chat/chat.dart
@@ -62,7 +62,7 @@ part 'chat_notifications.dart';
 part 'chat_push.dart';
 part 'chat_user.dart';
 
-const sdkVersion = '4.2.24';
+const sdkVersion = '4.2.25';
 
 // Internal implementation for main class. Do not directly access this class.
 class Chat with WidgetsBindingObserver {
@@ -91,6 +91,7 @@ class Chat with WidgetsBindingObserver {
 
   bool? _isObserverRegistered;
   int lastMarkAsReadTimestamp;
+  bool isBackground = false;
 
   // This allows a value of type T or T? to be treated as a value of type T?.
   // We use this so that APIs that have become non-nullable can still be used
@@ -176,8 +177,13 @@ class Chat with WidgetsBindingObserver {
   Future<void> didChangeAppLifecycleState(AppLifecycleState state) async {
     sbLog.i(StackTrace.current, 'state: $state');
 
-    if (state == AppLifecycleState.paused) await _handleEnterBackground();
-    if (state == AppLifecycleState.resumed) await _handleEnterForeground();
+    if (state == AppLifecycleState.paused) {
+      isBackground = true;
+      await _handleEnterBackground();
+    } else if (state == AppLifecycleState.resumed) {
+      isBackground = false;
+      await _handleEnterForeground();
+    }
   }
 
   Future<void> _handleEnterBackground() async {
diff --git a/lib/src/internal/main/chat_manager/connection_manager.dart b/lib/src/internal/main/chat_manager/connection_manager.dart
index fa49d09..86ab431 100644
--- a/lib/src/internal/main/chat_manager/connection_manager.dart
+++ b/lib/src/internal/main/chat_manager/connection_manager.dart
@@ -83,11 +83,11 @@ class ConnectionManager {
     );
   }
 
-  Future<void> disconnect({required logout}) async {
+  Future<void> disconnect({required bool logout}) async {
     await _currentState.disconnect(logout: logout);
   }
 
-  Future<bool> reconnect({bool reset = false}) async {
+  Future<bool> reconnect({required bool reset}) async {
     return await _currentState.reconnect(reset: reset);
   }
 
@@ -242,6 +242,7 @@ class ConnectionManager {
   Future<void> doDisconnect({
     required bool clear,
     bool logout = false,
+    bool fromEnterBackground = false,
   }) async {
     sbLog.i(
       StackTrace.current,
@@ -262,7 +263,7 @@ class ConnectionManager {
       }
     }
 
-    await webSocketClient.close();
+    final isClosedSuccessfully = await webSocketClient.close();
 
     final disconnectedUserId = chat.chatContext.currentUserId ?? '';
 
@@ -294,10 +295,14 @@ class ConnectionManager {
       await chat.eventDispatcher.onDisconnected();
     }
 
-    changeState(DisconnectedState(chat: chat));
+    if (fromEnterBackground && !chat.isBackground && !isClosedSuccessfully) {
+      chat.connectionManager.reconnect(reset: true); // Check
+    } else {
+      changeState(DisconnectedState(chat: chat));
 
-    if (clear && disconnectedUserId.isNotEmpty) {
-      chat.eventManager.notifyDisconnected(disconnectedUserId);
+      if (clear && disconnectedUserId.isNotEmpty) {
+        chat.eventManager.notifyDisconnected(disconnectedUserId);
+      }
     }
   }
 
diff --git a/lib/src/internal/main/connection_state/base_connection_state.dart b/lib/src/internal/main/connection_state/base_connection_state.dart
index e73502f..6916d29 100644
--- a/lib/src/internal/main/connection_state/base_connection_state.dart
+++ b/lib/src/internal/main/connection_state/base_connection_state.dart
@@ -15,8 +15,8 @@ abstract class BaseConnectionState {
     String? apiHost,
     String? wsHost,
   });
-  Future<void> disconnect({required logout});
-  Future<bool> reconnect({bool reset = false});
+  Future<void> disconnect({required bool logout});
+  Future<bool> reconnect({required bool reset});
 
   Future<void> enterBackground();
   Future<void> enterForeground();
diff --git a/lib/src/internal/main/connection_state/connected_state.dart b/lib/src/internal/main/connection_state/connected_state.dart
index c4c3a90..31a87b0 100644
--- a/lib/src/internal/main/connection_state/connected_state.dart
+++ b/lib/src/internal/main/connection_state/connected_state.dart
@@ -37,7 +37,7 @@ class ConnectedState extends BaseConnectionState {
   }
 
   @override
-  Future<void> disconnect({required logout}) async {
+  Future<void> disconnect({required bool logout}) async {
     sbLog.i(StackTrace.current);
     await chat.connectionManager.doDisconnect(clear: logout, logout: logout);
   }
@@ -51,7 +51,8 @@ class ConnectedState extends BaseConnectionState {
   @override
   Future<void> enterBackground() async {
     sbLog.i(StackTrace.current);
-    await chat.connectionManager.doDisconnect(clear: false);
+    await chat.connectionManager
+        .doDisconnect(clear: false, fromEnterBackground: true);
   }
 
   @override
diff --git a/lib/src/internal/main/connection_state/connecting_state.dart b/lib/src/internal/main/connection_state/connecting_state.dart
index aaee3d4..ee89dc7 100644
--- a/lib/src/internal/main/connection_state/connecting_state.dart
+++ b/lib/src/internal/main/connection_state/connecting_state.dart
@@ -38,7 +38,7 @@ class ConnectingState extends BaseConnectionState {
   }
 
   @override
-  Future<void> disconnect({required logout}) async {
+  Future<void> disconnect({required bool logout}) async {
     sbLog.i(StackTrace.current);
     await chat.connectionManager.doDisconnect(clear: logout, logout: logout);
   }
@@ -52,7 +52,8 @@ class ConnectingState extends BaseConnectionState {
   @override
   Future<void> enterBackground() async {
     sbLog.i(StackTrace.current);
-    await chat.connectionManager.doDisconnect(clear: false);
+    await chat.connectionManager
+        .doDisconnect(clear: false, fromEnterBackground: true);
   }
 
   @override
diff --git a/lib/src/internal/main/connection_state/disconnected_state.dart b/lib/src/internal/main/connection_state/disconnected_state.dart
index 9b867b1..fd20e25 100644
--- a/lib/src/internal/main/connection_state/disconnected_state.dart
+++ b/lib/src/internal/main/connection_state/disconnected_state.dart
@@ -37,7 +37,7 @@ class DisconnectedState extends BaseConnectionState {
   }
 
   @override
-  Future<void> disconnect({required logout}) async {
+  Future<void> disconnect({required bool logout}) async {
     sbLog.i(StackTrace.current);
     await chat.connectionManager.doDisconnect(clear: logout, logout: logout);
   }
@@ -51,7 +51,8 @@ class DisconnectedState extends BaseConnectionState {
   @override
   Future<void> enterBackground() async {
     sbLog.i(StackTrace.current);
-    await chat.connectionManager.doDisconnect(clear: false);
+    await chat.connectionManager
+        .doDisconnect(clear: false, fromEnterBackground: true);
   }
 
   @override
diff --git a/lib/src/internal/main/connection_state/reconnecting_state.dart b/lib/src/internal/main/connection_state/reconnecting_state.dart
index c2ddda8..d68a6ca 100644
--- a/lib/src/internal/main/connection_state/reconnecting_state.dart
+++ b/lib/src/internal/main/connection_state/reconnecting_state.dart
@@ -36,7 +36,7 @@ class ReconnectingState extends BaseConnectionState {
   }
 
   @override
-  Future<void> disconnect({required logout}) async {
+  Future<void> disconnect({required bool logout}) async {
     sbLog.i(StackTrace.current);
     await chat.connectionManager.doDisconnect(clear: logout, logout: logout);
   }
@@ -50,7 +50,8 @@ class ReconnectingState extends BaseConnectionState {
   @override
   Future<void> enterBackground() async {
     sbLog.i(StackTrace.current);
-    await chat.connectionManager.doDisconnect(clear: false);
+    await chat.connectionManager
+        .doDisconnect(clear: false, fromEnterBackground: true);
   }
 
   @override
diff --git a/lib/src/internal/main/stats/stat_manager.dart b/lib/src/internal/main/stats/stat_manager.dart
index 11c1465..016cf9d 100644
--- a/lib/src/internal/main/stats/stat_manager.dart
+++ b/lib/src/internal/main/stats/stat_manager.dart
@@ -17,6 +17,7 @@ import 'package:sendbird_chat_sdk/src/internal/main/stats/stat_state.dart';
 import 'package:sendbird_chat_sdk/src/internal/main/stats/stat_type.dart';
 import 'package:sendbird_chat_sdk/src/internal/main/stats/stat_utils.dart';
 import 'package:sendbird_chat_sdk/src/internal/main/utils/json_converter.dart';
+import 'package:sendbird_chat_sdk/src/internal/network/http/http_client/request/main/upload_notification_stat_request.dart';
 import 'package:sendbird_chat_sdk/src/internal/network/http/http_client/request/main/upload_stat_request.dart';
 import 'package:sendbird_chat_sdk/src/internal/network/websocket/event/login_event.dart';
 import 'package:sendbird_chat_sdk/src/public/main/define/exceptions.dart';
@@ -241,19 +242,55 @@ class StatManager {
     await _clearDisallowedStats(); // Defensive code
 
     final deviceId = await defaultStatPrefs.deviceId;
+
     final dailyRecordStats = (await dailyRecordStatPrefs.uploadCandidateStats)
         .take(_maxStatCountPerRequest)
         .toList();
+
     final copiedStats = cachedDefaultStats
         .take(_maxStatCountPerRequest - dailyRecordStats.length)
         .toList();
 
+    final List<NotificationStat> notificationStats = [];
+    final List<DefaultStat> otherStats = [];
+    final List<DefaultStat> remainingDefaultStats = [...cachedDefaultStats];
+
+    for (DefaultStat stat in copiedStats) {
+      if (stat is NotificationStat) {
+        notificationStats.add(stat);
+      } else {
+        otherStats.add(stat);
+      }
+    }
+
     Object? exception;
+    bool wereNotificationStatsSent = false;
     try {
-      final stats = [...dailyRecordStats, ...copiedStats];
-      await _chat.apiClient.send(
-        UploadStatRequest(_chat, deviceId: deviceId, stats: stats),
-      );
+      if (notificationStats.isNotEmpty) {
+        // Send notificationStats
+        await _chat.apiClient.send(
+          UploadNotificationStatRequest(_chat,
+              deviceId: deviceId, stats: notificationStats),
+        );
+
+        for (NotificationStat stat in notificationStats) {
+          remainingDefaultStats.remove(stat);
+        }
+
+        wereNotificationStatsSent = true;
+      }
+
+      if (dailyRecordStats.isNotEmpty || otherStats.isNotEmpty) {
+        // Send otherStats
+        await _chat.apiClient.send(
+          UploadStatRequest(_chat,
+              deviceId: deviceId, stats: [...dailyRecordStats, ...otherStats]),
+        );
+
+        for (DefaultStat stat in otherStats) {
+          remainingDefaultStats.remove(stat);
+        }
+      }
     } catch (e) {
       if (copiedStats.length >= _minStatCount) {
         _minStatCount += _intervalCountToTryAgain;
@@ -271,20 +308,11 @@ class StatManager {
     if (exception == null) {
       _minStatCount = _initialMinStatCount;
 
-      final List<DefaultStat> remainingStats = [];
-      try {
-        remainingStats.addAll(cachedDefaultStats
-            .sublist(copiedStats.length, cachedDefaultStats.length)
-            .toList());
-      } catch (e) {
-        sbLog.d(StackTrace.current, 'e: ${e.toString()}');
-      }
-
       cachedDefaultStats.clear();
-      cachedDefaultStats.addAll(remainingStats);
+      cachedDefaultStats.addAll(remainingDefaultStats);
       await defaultStatPrefs
           .updateLastSentAt(DateTime.now().millisecondsSinceEpoch);
-      await defaultStatPrefs.putStats(remainingStats);
+      await defaultStatPrefs.putStats(remainingDefaultStats);
       await dailyRecordStatPrefs.remove(dailyRecordStats);
 
       sbLog.d(
@@ -294,6 +322,22 @@ class StatManager {
           ' cachedDefaultStats: ${cachedDefaultStats.length},'
           ' defaultStatPrefs: ${await defaultStatPrefs.statCount},'
           ' dailyRecordStatPrefs: ${(await dailyRecordStatPrefs.stats).length}');
+    } else if (wereNotificationStatsSent) {
+      _minStatCount = _initialMinStatCount;
+
+      cachedDefaultStats.clear();
+      cachedDefaultStats.addAll(remainingDefaultStats);
+      await defaultStatPrefs
+          .updateLastSentAt(DateTime.now().millisecondsSinceEpoch);
+      await defaultStatPrefs.putStats(remainingDefaultStats);
+
+      sbLog.d(
+          StackTrace.current,
+          '[StatTest][NotificationStatsSent] deviceId: $deviceId,'
+          ' pendingDefaultStats: ${pendingDefaultStats.length},'
+          ' cachedDefaultStats: ${cachedDefaultStats.length},'
+          ' defaultStatPrefs: ${await defaultStatPrefs.statCount},'
+          ' dailyRecordStatPrefs: ${(await dailyRecordStatPrefs.stats).length}');
     }
 
     _isFlushing = false;
diff --git a/lib/src/internal/network/http/http_client/request/main/upload_notification_stat_request.dart b/lib/src/internal/network/http/http_client/request/main/upload_notification_stat_request.dart
new file mode 100644
index 0000000..504729a
--- /dev/null
+++ b/lib/src/internal/network/http/http_client/request/main/upload_notification_stat_request.dart
@@ -0,0 +1,26 @@
+// Copyright (c) 2023 Sendbird, Inc. All rights reserved.
+
+import 'package:sendbird_chat_sdk/src/internal/main/chat/chat.dart';
+import 'package:sendbird_chat_sdk/src/internal/main/stats/model/base_stat.dart';
+import 'package:sendbird_chat_sdk/src/internal/network/http/http_client/http_client.dart';
+import 'package:sendbird_chat_sdk/src/internal/network/http/http_client/request/api_request.dart';
+
+class UploadNotificationStatRequest extends ApiRequest {
+  @override
+  HttpMethod get method => HttpMethod.post;
+
+  static const statUrl = 'sdk/notification_statistics';
+
+  UploadNotificationStatRequest(
+    Chat chat, {
+    required String deviceId,
+    required List<BaseStat> stats,
+  }) : super(chat: chat) {
+    url = statUrl;
+    body = {
+      'device_id': deviceId,
+      'log_entries': stats.map((stat) => stat.toJson()).toList(),
+    };
+    userId = null;
+  }
+}
diff --git a/pubspec.yaml b/pubspec.yaml
index 32f8d16..0bd448a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: sendbird_chat_sdk
 description: With Sendbird Chat for Flutter, you can easily build an in-app chat with all the essential messaging features.
-version: 4.2.24
+version: 4.2.25
 homepage: https://sendbird.com
 repository: https://github.com/sendbird/sendbird-chat-sdk-flutter
 documentation: https://sendbird.com/docs/chat/sdk/v4/flutter/getting-started/send-first-message