diff --git a/application/src/main/java/org/thingsboard/server/controller/DashboardController.java b/application/src/main/java/org/thingsboard/server/controller/DashboardController.java
index 98fc25cc54..bd5938e9e5 100644
--- a/application/src/main/java/org/thingsboard/server/controller/DashboardController.java
+++ b/application/src/main/java/org/thingsboard/server/controller/DashboardController.java
@@ -195,29 +195,10 @@ public class DashboardController extends BaseController {
             @ApiParam(value = DASHBOARD_ID_PARAM_DESCRIPTION)
             @PathVariable(DASHBOARD_ID) String strDashboardId) throws ThingsboardException {
         checkParameter(DASHBOARD_ID, strDashboardId);
-        try {
-            DashboardId dashboardId = new DashboardId(toUUID(strDashboardId));
-            Dashboard dashboard = checkDashboardId(dashboardId, Operation.DELETE);
-
-            List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(getTenantId(), dashboardId);
-
-            dashboardService.deleteDashboard(getCurrentUser().getTenantId(), dashboardId);
-
-            logEntityAction(dashboardId, dashboard,
-                    null,
-                    ActionType.DELETED, null, strDashboardId);
-
-            sendDeleteNotificationMsg(getTenantId(), dashboardId, relatedEdgeIds);
-        } catch (Exception e) {
-
-            logEntityAction(emptyId(EntityType.DASHBOARD),
-                    null,
-                    null,
-                    ActionType.DELETED, e, strDashboardId);
-
-            throw handleException(e);
-        }
-    }
+        DashboardId dashboardId = new DashboardId(toUUID(strDashboardId));
+        Dashboard dashboard = checkDashboardId(dashboardId, Operation.DELETE);
+        tbDashboardService.delete(dashboard, dashboardId, getCurrentUser());
+     }
 
     @ApiOperation(value = "Assign the Dashboard (assignDashboardToCustomer)",
             notes = "Assign the Dashboard to specified Customer or do nothing if the Dashboard is already assigned to that Customer. " +
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/DefaultTbNotificationEntityService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/DefaultTbNotificationEntityService.java
index c18e175fe2..a70d068d40 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/DefaultTbNotificationEntityService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/DefaultTbNotificationEntityService.java
@@ -71,9 +71,13 @@ public class DefaultTbNotificationEntityService implements TbNotificationEntityS
     public <E extends HasName, I extends EntityId> void notifyDeleteEntity(TenantId tenantId, I entityId, E entity,
                                                                            CustomerId customerId, ActionType actionType,
                                                                            List<EdgeId> relatedEdgeIds,
-                                                                           SecurityUser user, Object... additionalInfo) {
+                                                                           SecurityUser user,
+                                                                           String body, Object... additionalInfo) {
         logEntityAction(tenantId, entityId, entity, customerId, actionType, user, additionalInfo);
-        sendDeleteNotificationMsg(tenantId, entityId, entity,  relatedEdgeIds);
+        sendDeleteNotificationMsg(tenantId, entityId, entity, relatedEdgeIds, body);
+        if (entity instanceof Customer) {
+            tbClusterService.broadcastEntityStateChangeEvent(tenantId, customerId, ComponentLifecycleEvent.DELETED);
+        }
     }
 
     @Override
@@ -126,7 +130,7 @@ public class DefaultTbNotificationEntityService implements TbNotificationEntityS
         gatewayNotificationsService.onDeviceDeleted(device);
         tbClusterService.onDeviceDeleted(device, null);
 
-        notifyDeleteEntity(tenantId, deviceId, device, customerId, ActionType.DELETED, relatedEdgeIds, user, false, additionalInfo);
+        notifyDeleteEntity(tenantId, deviceId, device, customerId, ActionType.DELETED, relatedEdgeIds, user,null, additionalInfo);
     }
 
     @Override
@@ -145,9 +149,9 @@ public class DefaultTbNotificationEntityService implements TbNotificationEntityS
     }
 
     @Override
-    public  <E extends HasName, I extends EntityId>  void notifyCreateOrUpdateEntity(TenantId tenantId, I entityId, E entity, CustomerId customerId, ActionType actionType, SecurityUser user, Object... additionalInfo) {
+    public <E extends HasName, I extends EntityId> void notifyCreateOrUpdateEntity(TenantId tenantId, I entityId, E entity, CustomerId customerId, ActionType actionType, SecurityUser user, Object... additionalInfo) {
         logEntityAction(tenantId, entityId, entity, customerId, actionType, user, additionalInfo);
-        if (actionType == ActionType.UPDATED)  {
+        if (actionType == ActionType.UPDATED) {
             sendEntityNotificationMsg(tenantId, entityId, EdgeEventActionType.UPDATED);
         }
     }
@@ -191,20 +195,7 @@ public class DefaultTbNotificationEntityService implements TbNotificationEntityS
     @Override
     public void notifyCreateOrUpdateAlarm(Alarm alarm, ActionType actionType, SecurityUser user, Object... additionalInfo) {
         logEntityAction(alarm.getTenantId(), alarm.getOriginator(), alarm, alarm.getCustomerId(), actionType, user, additionalInfo);
-        sendEntityNotificationMsg(alarm.getTenantId(), alarm.getId(), edgeTypeByActionType (actionType));
-    }
-
-    @Override
-    public void notifyDeleteAlarm(Alarm alarm, SecurityUser user, List<EdgeId> relatedEdgeIds) {
-        logEntityAction(alarm.getTenantId(), alarm.getOriginator(), alarm, alarm.getCustomerId(), ActionType.ALARM_DELETE, user, null);
-        sendAlarmDeleteNotificationMsg(alarm, relatedEdgeIds);
-    }
-
-    @Override
-    public void notifyDeleteCustomer(Customer customer, SecurityUser user, List<EdgeId> edgeIds) {
-        logEntityAction(customer.getTenantId(), customer.getId(), customer, customer.getId(), ActionType.DELETED, user, null);
-        sendDeleteNotificationMsg(customer.getTenantId(), customer.getId(), customer, edgeIds);
-        tbClusterService.broadcastEntityStateChangeEvent(customer.getTenantId(), customer.getId(), ComponentLifecycleEvent.DELETED);
+        sendEntityNotificationMsg(alarm.getTenantId(), alarm.getId(), edgeTypeByActionType(actionType));
     }
 
     private <E extends HasName, I extends EntityId> void logEntityAction(TenantId tenantId, I entityId, E entity, CustomerId customerId,
@@ -233,22 +224,15 @@ public class DefaultTbNotificationEntityService implements TbNotificationEntityS
         }
     }
 
-    protected <E extends HasName, I extends EntityId> void sendDeleteNotificationMsg(TenantId tenantId, I entityId, E entity, List<EdgeId> edgeIds) {
+    protected <E extends HasName, I extends EntityId> void sendDeleteNotificationMsg(TenantId tenantId, I entityId, E entity,
+                                                                                     List<EdgeId> edgeIds, String body) {
         try {
-            sendDeleteNotificationMsg(tenantId, entityId,  edgeIds, null);
+            sendDeleteNotificationMsg(tenantId, entityId, edgeIds, body);
         } catch (Exception e) {
             log.warn("Failed to push delete " + entity.getClass().getName() + " msg to core: {}", entity, e);
         }
     }
 
-    protected void sendAlarmDeleteNotificationMsg(Alarm alarm, List<EdgeId> relatedEdgeIds) {
-        try {
-            sendDeleteNotificationMsg(alarm.getTenantId(), alarm.getId(), relatedEdgeIds, json.writeValueAsString(alarm));
-        } catch (Exception e) {
-            log.warn("Failed to push delete alarm msg to core: {}", alarm, e);
-        }
-    }
-
     private void sendDeleteNotificationMsg(TenantId tenantId, EntityId entityId, List<EdgeId> edgeIds, String body) {
         if (edgeIds != null && !edgeIds.isEmpty()) {
             for (EdgeId edgeId : edgeIds) {
@@ -289,7 +273,7 @@ public class DefaultTbNotificationEntityService implements TbNotificationEntityS
         return null;
     }
 
-    private EdgeEventActionType edgeTypeByActionType (ActionType actionType) {
+    private EdgeEventActionType edgeTypeByActionType(ActionType actionType) {
         switch (actionType) {
             case ADDED:
                 return EdgeEventActionType.ADDED;
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/SimpleTbEntityService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/SimpleTbEntityService.java
index 84f5658015..ea5bc92e3e 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/SimpleTbEntityService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/SimpleTbEntityService.java
@@ -15,11 +15,15 @@
  */
 package org.thingsboard.server.service.entitiy;
 
+import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.service.security.model.SecurityUser;
 
-public interface SimpleTbEntityService<T> {
+public interface SimpleTbEntityService<E, I> {
 
-    T save(T entity, SecurityUser user) throws ThingsboardException;
+    E save(E entity, SecurityUser user) throws ThingsboardException;
+
+    <E extends HasName, I extends EntityId> void  delete (E entity, I entityId, SecurityUser user) throws ThingsboardException;
 
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/TbNotificationEntityService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/TbNotificationEntityService.java
index 43c0cc4c91..70cac320d7 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/TbNotificationEntityService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/TbNotificationEntityService.java
@@ -15,7 +15,6 @@
  */
 package org.thingsboard.server.service.entitiy;
 
-import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.Device;
 import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.Tenant;
@@ -46,7 +45,7 @@ public interface TbNotificationEntityService {
 
     <E extends HasName, I extends EntityId> void notifyDeleteEntity(TenantId tenantId, I entityId, E entity, CustomerId customerId,
                                                                     ActionType actionType, List<EdgeId> relatedEdgeIds, SecurityUser user,
-                                                                    Object... additionalInfo);
+                                                                    String body, Object... additionalInfo);
 
     <E extends HasName, I extends EntityId> void notifyAssignOrUnassignEntityToCustomer(TenantId tenantId, I entityId,
                                                                                         CustomerId customerId, E entity,
@@ -80,8 +79,4 @@ public interface TbNotificationEntityService {
     void notifyEdge(TenantId tenantId, EdgeId edgeId, CustomerId customerId, Edge edge, ActionType actionType, SecurityUser user, Object... additionalInfo);
 
     void notifyCreateOrUpdateAlarm(Alarm alarm, ActionType actionType, SecurityUser user, Object... additionalInfo);
-
-    void notifyDeleteAlarm(Alarm alarm, SecurityUser user, List<EdgeId> relatedEdgeIds);
-
-    void notifyDeleteCustomer(Customer customer, SecurityUser user, List<EdgeId> relatedEdgeIds);
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/DefaultTbAlarmService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/DefaultTbAlarmService.java
index 1fb19e3c41..ad066f2233 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/DefaultTbAlarmService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/DefaultTbAlarmService.java
@@ -15,14 +15,17 @@
  */
 package org.thingsboard.server.service.entitiy.alarm;
 
+import com.fasterxml.jackson.databind.ObjectMapper;
 import lombok.AllArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.common.data.EntityType;
+import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.alarm.Alarm;
 import org.thingsboard.server.common.data.alarm.AlarmStatus;
 import org.thingsboard.server.common.data.audit.ActionType;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
 import org.thingsboard.server.common.data.id.EdgeId;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.entitiy.AbstractTbEntityService;
@@ -34,6 +37,7 @@ import java.util.List;
 @TbCoreComponent
 @AllArgsConstructor
 public class DefaultTbAlarmService extends AbstractTbEntityService implements TbAlarmService {
+    private static final ObjectMapper json = new ObjectMapper();
 
     @Override
     public Alarm save(Alarm alarm, SecurityUser user) throws ThingsboardException {
@@ -76,9 +80,18 @@ public class DefaultTbAlarmService extends AbstractTbEntityService implements Tb
     }
 
     @Override
-    public Boolean delete(Alarm alarm, SecurityUser user) throws ThingsboardException {
-        List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(alarm.getTenantId(), alarm.getOriginator());
-        notificationEntityService.notifyDeleteAlarm(alarm, user, relatedEdgeIds);
-        return alarmService.deleteAlarm(alarm.getTenantId(), alarm.getId()).isSuccessful();
+    public Boolean deleteAlarm(Alarm alarm, SecurityUser user) throws ThingsboardException {
+        try {
+        TenantId tenantId = user.getTenantId();
+        List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(tenantId, alarm.getOriginator());
+        notificationEntityService.notifyDeleteEntity(tenantId, alarm.getOriginator(), alarm, user.getCustomerId(),
+                ActionType.DELETED, relatedEdgeIds, user, json.writeValueAsString(alarm));
+        return alarmService.deleteAlarm(tenantId, alarm.getId()).isSuccessful();
+        } catch (Exception e) {
+            throw handleException(e);
+        }
     }
+
+    @Override
+    public <E extends HasName, I extends EntityId> void delete(E entity, I entityId, SecurityUser user) throws ThingsboardException {}
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/TbAlarmService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/TbAlarmService.java
index f73e44bc69..8a169b8f88 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/TbAlarmService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/alarm/TbAlarmService.java
@@ -16,16 +16,16 @@
 package org.thingsboard.server.service.entitiy.alarm;
 
 import org.thingsboard.server.common.data.alarm.Alarm;
-import org.thingsboard.server.common.data.asset.Asset;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
+import org.thingsboard.server.common.data.id.AlarmId;
 import org.thingsboard.server.service.entitiy.SimpleTbEntityService;
 import org.thingsboard.server.service.security.model.SecurityUser;
 
-public interface TbAlarmService extends SimpleTbEntityService<Alarm> {
+public interface TbAlarmService extends SimpleTbEntityService<Alarm, AlarmId> {
 
     void ack(Alarm alarm, SecurityUser user) throws ThingsboardException;
 
     void clear(Alarm alarm, SecurityUser user) throws ThingsboardException;
 
-    Boolean delete(Alarm alarm, SecurityUser user) throws ThingsboardException;
+    Boolean deleteAlarm(Alarm alarm, SecurityUser user) throws ThingsboardException;
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/asset/DefaultTbAssetService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/asset/DefaultTbAssetService.java
index 3f4ce83318..559ac449b4 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/asset/DefaultTbAssetService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/asset/DefaultTbAssetService.java
@@ -20,6 +20,7 @@ import lombok.AllArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.EntityType;
+import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.asset.Asset;
 import org.thingsboard.server.common.data.audit.ActionType;
 import org.thingsboard.server.common.data.edge.Edge;
@@ -28,6 +29,7 @@ import org.thingsboard.server.common.data.exception.ThingsboardException;
 import org.thingsboard.server.common.data.id.AssetId;
 import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.EdgeId;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.entitiy.AbstractTbEntityService;
@@ -60,7 +62,8 @@ public class DefaultTbAssetService extends AbstractTbEntityService implements Tb
         try {
             List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(tenantId, assetId);
             assetService.deleteAsset(tenantId, assetId);
-            notificationEntityService.notifyDeleteEntity(tenantId, assetId, asset, asset.getCustomerId(), ActionType.DELETED, relatedEdgeIds, user, false, asset.toString());
+            notificationEntityService.notifyDeleteEntity(tenantId, assetId, asset, asset.getCustomerId(), ActionType.DELETED,
+                    relatedEdgeIds, user, null, asset.toString());
 
             return removeAlarmsByEntityId(tenantId, assetId);
         } catch (Exception e) {
@@ -70,6 +73,9 @@ public class DefaultTbAssetService extends AbstractTbEntityService implements Tb
         }
     }
 
+    @Override
+    public <E extends HasName, I extends EntityId> void delete(E entity, I entityId, SecurityUser user) throws ThingsboardException { }
+
     @Override
     public Asset assignAssetToCustomer(TenantId tenantId, AssetId assetId, Customer customer, SecurityUser user) throws ThingsboardException {
         ActionType actionType = ActionType.ASSIGNED_TO_CUSTOMER;
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/asset/TbAssetService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/asset/TbAssetService.java
index 3bc6dadf3d..e753093ba2 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/asset/TbAssetService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/asset/TbAssetService.java
@@ -25,7 +25,7 @@ import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.service.entitiy.SimpleTbEntityService;
 import org.thingsboard.server.service.security.model.SecurityUser;
 
-public interface TbAssetService extends SimpleTbEntityService<Asset> {
+public interface TbAssetService extends SimpleTbEntityService<Asset, AssetId> {
 
     ListenableFuture<Void> delete(Asset asset, SecurityUser user) throws ThingsboardException;
 
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/customer/DefaultTbCustomerService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/customer/DefaultTbCustomerService.java
index 452c71b51a..dec48a4fcb 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/customer/DefaultTbCustomerService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/customer/DefaultTbCustomerService.java
@@ -19,9 +19,12 @@ import lombok.AllArgsConstructor;
 import org.springframework.stereotype.Service;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.EntityType;
+import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.audit.ActionType;
 import org.thingsboard.server.common.data.exception.ThingsboardException;
+import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.EdgeId;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.entitiy.AbstractTbEntityService;
@@ -49,12 +52,13 @@ public class DefaultTbCustomerService extends AbstractTbEntityService implements
     }
 
     @Override
-    public void delete(Customer customer, SecurityUser user) throws ThingsboardException {
-        TenantId tenantId = customer.getTenantId();
+    public <E extends HasName, I extends EntityId> void delete(E customer, I customerId, SecurityUser user) throws ThingsboardException {
+        TenantId tenantId = user.getTenantId();
         try {
-            List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(tenantId, customer.getId());
-            customerService.deleteCustomer(tenantId, customer.getId());
-            notificationEntityService.notifyDeleteCustomer(customer, user, relatedEdgeIds);
+            List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(tenantId, customerId);
+            customerService.deleteCustomer(tenantId, (CustomerId) customerId);
+            notificationEntityService.notifyDeleteEntity(tenantId, customerId, customer, user.getCustomerId(),
+                    ActionType.DELETED, relatedEdgeIds, user, null);
         } catch (Exception e) {
             notificationEntityService.notifyEntity(tenantId, emptyId(EntityType.CUSTOMER), null, null, ActionType.DELETED, user, e);
             throw handleException(e);
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/customer/TbCustomerService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/customer/TbCustomerService.java
index f34d796db1..2e0d891046 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/customer/TbCustomerService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/customer/TbCustomerService.java
@@ -16,12 +16,9 @@
 package org.thingsboard.server.service.entitiy.customer;
 
 import org.thingsboard.server.common.data.Customer;
-import org.thingsboard.server.common.data.exception.ThingsboardException;
+import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.service.entitiy.SimpleTbEntityService;
-import org.thingsboard.server.service.security.model.SecurityUser;
 
-public interface TbCustomerService extends SimpleTbEntityService<Customer> {
-
-    void delete(Customer customer, SecurityUser user) throws ThingsboardException;
+public interface TbCustomerService extends SimpleTbEntityService<Customer, CustomerId> {
 
 }
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/DefaultTbDashboardService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/DefaultTbDashboardService.java
index 11fced7790..d375c1691f 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/DefaultTbDashboardService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/DefaultTbDashboardService.java
@@ -20,6 +20,7 @@ import org.springframework.stereotype.Service;
 import org.thingsboard.server.common.data.Customer;
 import org.thingsboard.server.common.data.Dashboard;
 import org.thingsboard.server.common.data.EntityType;
+import org.thingsboard.server.common.data.HasName;
 import org.thingsboard.server.common.data.ShortCustomerInfo;
 import org.thingsboard.server.common.data.audit.ActionType;
 import org.thingsboard.server.common.data.edge.Edge;
@@ -28,12 +29,14 @@ import org.thingsboard.server.common.data.exception.ThingsboardException;
 import org.thingsboard.server.common.data.id.CustomerId;
 import org.thingsboard.server.common.data.id.DashboardId;
 import org.thingsboard.server.common.data.id.EdgeId;
+import org.thingsboard.server.common.data.id.EntityId;
 import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.queue.util.TbCoreComponent;
 import org.thingsboard.server.service.entitiy.AbstractTbEntityService;
 import org.thingsboard.server.service.security.model.SecurityUser;
 
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 import java.util.UUID;
 
@@ -57,6 +60,21 @@ public class DefaultTbDashboardService extends AbstractTbEntityService implement
         }
     }
 
+    @Override
+    public <E extends HasName, I extends EntityId> void delete(E dashboard, I dashboardId, SecurityUser user) throws ThingsboardException {
+        TenantId tenantId = user.getTenantId();
+        try {
+            List<EdgeId> relatedEdgeIds = findRelatedEdgeIds(tenantId, dashboardId);
+            dashboardService.deleteDashboard(tenantId, (DashboardId) dashboardId);
+            notificationEntityService.notifyDeleteEntity(tenantId, dashboardId, dashboard, user.getCustomerId(),
+                    ActionType.DELETED, relatedEdgeIds, user, null);
+        } catch (Exception e) {
+            notificationEntityService.notifyEntity(tenantId, emptyId(EntityType.DASHBOARD), null, null,
+                    ActionType.DELETED, user, e, dashboardId.toString());
+            throw handleException(e);
+        }
+    }
+
     @Override
     public Dashboard assignDashboardToCustomer(TenantId tenantId, DashboardId dashboardId, Customer customer, SecurityUser user) throws ThingsboardException {
         ActionType actionType = ActionType.ASSIGNED_TO_CUSTOMER;
diff --git a/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/TbDashboardService.java b/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/TbDashboardService.java
index 0acb9a16c5..88ebc93824 100644
--- a/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/TbDashboardService.java
+++ b/application/src/main/java/org/thingsboard/server/service/entitiy/dashboard/TbDashboardService.java
@@ -24,7 +24,7 @@ import org.thingsboard.server.common.data.id.TenantId;
 import org.thingsboard.server.service.entitiy.SimpleTbEntityService;
 import org.thingsboard.server.service.security.model.SecurityUser;
 
-public interface  TbDashboardService extends SimpleTbEntityService<Dashboard> {
+public interface  TbDashboardService extends SimpleTbEntityService<Dashboard, DashboardId> {
 
     Dashboard assignDashboardToCustomer(TenantId tenantId, DashboardId dashboardId, Customer customer, SecurityUser user) throws ThingsboardException;