diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java
index c14f0e0e21d..e953e2f1bd5 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.common/src/main/java/org/wso2/carbon/device/mgt/common/operation/mgt/OperationManager.java
@@ -36,7 +36,7 @@ public interface OperationManager {
      * @throws OperationManagementException If some unusual behaviour is observed while adding the
      * operation
      */
-    public boolean addOperation(Operation operation, List<DeviceIdentifier> devices) throws OperationManagementException;
+    public int addOperation(Operation operation, List<DeviceIdentifier> devices) throws OperationManagementException;
 
     /**
      * Method to retrieve the list of all operations to a device.
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java
index da551394e30..99116a47289 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/OperationManagerImpl.java
@@ -74,7 +74,7 @@ public class OperationManagerImpl implements OperationManager {
     }
 
     @Override
-    public boolean addOperation(Operation operation,
+    public int addOperation(Operation operation,
                                 List<DeviceIdentifier> deviceIds) throws OperationManagementException {
 
         if (log.isDebugEnabled()) {
@@ -105,7 +105,7 @@ public class OperationManagerImpl implements OperationManager {
                 }
             }
             OperationManagementDAOFactory.commitTransaction();
-            return true;
+            return operationId;
         } catch (OperationManagementDAOException e) {
             try {
                 OperationManagementDAOFactory.rollbackTransaction();
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
index b2508080e01..d20b201293c 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/operation/mgt/dao/impl/OperationDAOImpl.java
@@ -26,6 +26,9 @@ import org.wso2.carbon.device.mgt.core.operation.mgt.dao.OperationManagementDAOE
 import org.wso2.carbon.device.mgt.core.operation.mgt.dao.OperationManagementDAOFactory;
 import org.wso2.carbon.device.mgt.core.operation.mgt.dao.OperationManagementDAOUtil;
 
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.ObjectOutputStream;
 import java.sql.*;
 import java.util.ArrayList;
 import java.util.Date;
@@ -112,18 +115,43 @@ public class OperationDAOImpl implements OperationDAO {
             throws OperationManagementDAOException {
 
         PreparedStatement stmt = null;
+        ByteArrayOutputStream bao = null;
+        ObjectOutputStream oos = null;
+
         try {
             Connection connection = OperationManagementDAOFactory.getConnection();
 
             stmt = connection.prepareStatement("INSERT INTO DM_DEVICE_OPERATION_RESPONSE(OPERATION_ID,DEVICE_ID," +
                     "OPERATION_RESPONSE) VALUES(?, ?, ?)");
+
+            bao = new ByteArrayOutputStream();
+            oos = new ObjectOutputStream(bao);
+            oos.writeObject(operationResponse);
+
             stmt.setInt(1, operationId);
             stmt.setInt(2, deviceId);
-            stmt.setObject(3, operationResponse);
+            stmt.setBytes(3, bao.toByteArray());
             stmt.executeUpdate();
+
         } catch (SQLException e) {
             throw new OperationManagementDAOException("Error occurred while inserting operation response", e);
-        } finally {
+        }catch (IOException e) {
+            throw new OperationManagementDAOException("Error occurred while serializing policy operation object", e);
+        }finally {
+            if (bao != null) {
+                try {
+                    bao.close();
+                } catch (IOException e) {
+                    log.warn("Error occurred while closing ByteArrayOutputStream", e);
+                }
+            }
+            if (oos != null) {
+                try {
+                    oos.close();
+                } catch (IOException e) {
+                    log.warn("Error occurred while closing ObjectOutputStream", e);
+                }
+            }
             OperationManagementDAOUtil.cleanupResources(stmt);
         }
     }
diff --git a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementProviderServiceImpl.java b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementProviderServiceImpl.java
index 7108c6ddd9f..0538923cdfd 100644
--- a/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementProviderServiceImpl.java
+++ b/components/device-mgt/org.wso2.carbon.device.mgt.core/src/main/java/org/wso2/carbon/device/mgt/core/service/DeviceManagementProviderServiceImpl.java
@@ -501,7 +501,7 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
     }
 
     @Override
-    public boolean addOperation(Operation operation, List<DeviceIdentifier> devices) throws
+    public int addOperation(Operation operation, List<DeviceIdentifier> devices) throws
             OperationManagementException {
         return DeviceManagementDataHolder.getInstance().getOperationManager().addOperation(operation, devices);
     }
@@ -754,7 +754,8 @@ public class DeviceManagementProviderServiceImpl implements DeviceManagementProv
     }
 
 
-    public int getTenantId() {
+
+    private int getTenantId() {
 
         ThreadLocal<Integer> tenantId = new ThreadLocal<Integer>();
         int tenant = 0;