diff --git a/frameworks/ans/src/notification_request.cpp b/frameworks/ans/src/notification_request.cpp
index fab87bf0d033f13d765fc172ab2bebd5e93cbe71..5dff5384a701b2d4a07badb040ae62cccb3c84c4 100644
--- a/frameworks/ans/src/notification_request.cpp
+++ b/frameworks/ans/src/notification_request.cpp
@@ -88,12 +88,12 @@ void NotificationRequest::SetUnremovable(bool isUnremovable)
     unremovable_ = isUnremovable;
 }
 
-void NotificationRequest::SetBadgeNumber(int32_t number)
+void NotificationRequest::SetBadgeNumber(uint32_t number)
 {
     badgeNumber_ = number;
 }
 
-int32_t NotificationRequest::GetBadgeNumber() const
+uint32_t NotificationRequest::GetBadgeNumber() const
 {
     return badgeNumber_;
 }
@@ -842,7 +842,7 @@ bool NotificationRequest::Marshalling(Parcel &parcel) const
         return false;
     }
 
-    if (!parcel.WriteInt32(badgeNumber_)) {
+    if (!parcel.WriteUint32(badgeNumber_)) {
         ANS_LOGE("Failed to write badge number");
         return false;
     }
@@ -1232,7 +1232,7 @@ bool NotificationRequest::ReadFromParcel(Parcel &parcel)
 {
     notificationId_ = parcel.ReadInt32();
     color_ = parcel.ReadUint32();
-    badgeNumber_ = parcel.ReadInt32();
+    badgeNumber_ = parcel.ReadUint32();
     progressValue_ = parcel.ReadInt32();
     progressMax_ = parcel.ReadInt32();
     createTime_ = parcel.ReadInt64();
@@ -1654,7 +1654,7 @@ void NotificationRequest::ConvertJsonToNum(NotificationRequest *target, const nl
     }
 
     if (jsonObject.find("badgeNumber") != jsonEnd) {
-        target->badgeNumber_ = jsonObject.at("badgeNumber").get<int32_t>();
+        target->badgeNumber_ = jsonObject.at("badgeNumber").get<uint32_t>();
     }
 }
 
diff --git a/frameworks/js/napi/src/common.cpp b/frameworks/js/napi/src/common.cpp
index 7f5eb237adb3fcd449682790ca2e28ebea57acc2..176c4c916f76e742ce5e029102e3f6a9f0ccfe81 100644
--- a/frameworks/js/napi/src/common.cpp
+++ b/frameworks/js/napi/src/common.cpp
@@ -386,7 +386,7 @@ napi_value Common::SetNotificationRequestByNumber(
     napi_set_named_property(env, result, "creatorPid", value);
 
     // badgeNumber?: number
-    napi_create_int32(env, request->GetBadgeNumber(), &value);
+    napi_create_uint32(env, request->GetBadgeNumber(), &value);
     napi_set_named_property(env, result, "badgeNumber", value);
 
     return NapiGetBoolean(env, true);
@@ -4204,6 +4204,11 @@ napi_value Common::GetNotificationBadgeNumber(
         }
 
         napi_get_value_int32(env, result, &badgeNumber);
+        if (badgeNumber < 0) {
+            ANS_LOGE("Wrong badge number.");
+            return nullptr;
+        }
+
         request.SetBadgeNumber(badgeNumber);
     }
 
diff --git a/interfaces/inner_api/notification_request.h b/interfaces/inner_api/notification_request.h
index 4c54274bdcb477a32be76e2d3f5f8ff1188dfae7..502de66a9d577591f7b479b93ef314340fa6d23f 100644
--- a/interfaces/inner_api/notification_request.h
+++ b/interfaces/inner_api/notification_request.h
@@ -201,14 +201,14 @@ public:
      *
      * @param number Indicates the number to set.
      */
-    void SetBadgeNumber(int32_t number);
+    void SetBadgeNumber(uint32_t number);
 
     /**
      * @brief Obtains the number to be displayed for this notification.
      *
      * @return Returns the number to be displayed for this notification.
      */
-    int32_t GetBadgeNumber() const;
+    uint32_t GetBadgeNumber() const;
 
     /**
      * @brief Sets the current notification ID to uniquely identify the notification in the application.
@@ -1136,7 +1136,7 @@ private:
 private:
     int32_t notificationId_ {0};
     uint32_t color_ {NotificationRequest::COLOR_DEFAULT};
-    int32_t badgeNumber_ {0};
+    uint32_t badgeNumber_ {0};
     int32_t progressValue_ {0};
     int32_t progressMax_ {0};
     int64_t createTime_ {0};
diff --git a/services/ans/include/advanced_notification_service.h b/services/ans/include/advanced_notification_service.h
index 855867a7aaa32f9a667a1d1067654244ce3818ca..87f745fb76c99e5c0575b73205feb45efa1eff06 100644
--- a/services/ans/include/advanced_notification_service.h
+++ b/services/ans/include/advanced_notification_service.h
@@ -808,8 +808,7 @@ private:
     ErrCode GetHasPoppedDialog(const sptr<NotificationBundleOption> bundleOption, bool &hasPopped);
     ErrCode GetAppTargetBundle(const sptr<NotificationBundleOption> &bundleOption,
         sptr<NotificationBundleOption> &targetBundle);
-    bool PublishSlotChangeCommonEvent(
-        const sptr<NotificationBundleOption> &bundleOption, const NotificationConstant::SlotType &slotType);
+    bool PublishSlotChangeCommonEvent(const sptr<NotificationBundleOption> &bundleOption);
     void ReportHasSeenEvent(const int32_t userId, const std::string &bundleName);
 
 private:
diff --git a/services/ans/src/advanced_notification_service.cpp b/services/ans/src/advanced_notification_service.cpp
index 817b4052c573c97716728054ef8fd6e6321026d4..c7903ff54704c81f170b82195da51ef6ef358e52 100644
--- a/services/ans/src/advanced_notification_service.cpp
+++ b/services/ans/src/advanced_notification_service.cpp
@@ -1126,6 +1126,11 @@ ErrCode AdvancedNotificationService::UpdateSlots(
             result = ERR_ANS_PREFERENCES_NOTIFICATION_SLOT_TYPE_NOT_EXIST;
         }
     }));
+
+    if (result == ERR_OK) {
+        PublishSlotChangeCommonEvent(bundle);
+    }
+
     return result;
 }
 
@@ -3489,7 +3494,7 @@ ErrCode AdvancedNotificationService::SetEnabledForBundleSlot(
             return;
         }
 
-        PublishSlotChangeCommonEvent(bundle, slotType);
+        PublishSlotChangeCommonEvent(bundle);
     }));
     return result;
 }
@@ -3531,17 +3536,15 @@ ErrCode AdvancedNotificationService::GetEnabledForBundleSlot(
     return result;
 }
 
-bool AdvancedNotificationService::PublishSlotChangeCommonEvent(
-    const sptr<NotificationBundleOption> &bundleOption, const NotificationConstant::SlotType &slotType)
+bool AdvancedNotificationService::PublishSlotChangeCommonEvent(const sptr<NotificationBundleOption> &bundleOption)
 {
-    ANS_LOGD("slotType: %{public}d", slotType);
+    ANS_LOGD("bundle [%{public}s : %{public}d]", bundleOption->GetBundleName().c_str(), bundleOption->GetUid());
 
     EventFwk::Want want;
     AppExecFwk::ElementName element;
     element.SetBundleName(bundleOption->GetBundleName());
     want.SetElement(element);
     want.SetParam(AppExecFwk::Constants::UID, bundleOption->GetUid());
-    want.SetParam("SlotType", slotType);
     want.SetAction(EventFwk::CommonEventSupport::COMMON_EVENT_SLOT_CHANGE);
     EventFwk::CommonEventData commonData {want};
     if (!EventFwk::CommonEventManager::PublishCommonEvent(commonData)) {