diff --git a/services/tunnelbroker/src/libcpp/src/Database/DeviceSessionItem.cpp b/services/tunnelbroker/src/libcpp/src/Database/DeviceSessionItem.cpp
index 76f44e93c..ca78381a1 100644
--- a/services/tunnelbroker/src/libcpp/src/Database/DeviceSessionItem.cpp
+++ b/services/tunnelbroker/src/libcpp/src/Database/DeviceSessionItem.cpp
@@ -1,135 +1,134 @@
 #include "DeviceSessionItem.h"
 #include "ConfigManager.h"
 #include "Tools.h"
 
 #include <vector>
 
 namespace comm {
 namespace network {
 namespace database {
 
 const std::string DeviceSessionItem::FIELD_SESSION_ID = "SessionID";
 const std::string DeviceSessionItem::FIELD_DEVICE_ID = "DeviceID";
 const std::string DeviceSessionItem::FIELD_PUBKEY = "PubKey";
 const std::string DeviceSessionItem::FIELD_NOTIFY_TOKEN = "NotifyToken";
 const std::string DeviceSessionItem::FIELD_DEVICE_TYPE = "DeviceType";
 const std::string DeviceSessionItem::FIELD_APP_VERSION = "AppVersion";
 const std::string DeviceSessionItem::FIELD_DEVICE_OS = "DeviceOS";
 const std::string DeviceSessionItem::FIELD_CHECKPOINT_TIME = "CheckpointTime";
 const std::string DeviceSessionItem::FIELD_EXPIRE = "Expire";
 const std::string DeviceSessionItem::FIELD_IS_ONLINE = "IsOnline";
 
 DeviceSessionItem::DeviceSessionItem(
     const std::string sessionID,
     const std::string deviceID,
     const std::string pubKey,
     const std::string notifyToken,
     const std::string deviceType,
     const std::string appVersion,
     const std::string deviceOs)
     : sessionID(sessionID),
       deviceID(deviceID),
       pubKey(pubKey),
       notifyToken(notifyToken),
       deviceType(deviceType),
       appVersion(appVersion),
       deviceOs(deviceOs) {
   this->validate();
 }
 
 DeviceSessionItem::DeviceSessionItem(const AttributeValues &itemFromDB) {
   this->assignItemFromDatabase(itemFromDB);
 }
 
 void DeviceSessionItem::validate() const {
   if (!tools::validateSessionID(this->sessionID)) {
     throw std::runtime_error("Error: SessionID format is wrong.");
   }
   if (!tools::validateDeviceID(this->deviceID)) {
     throw std::runtime_error("Error: DeviceID format is wrong.");
   }
   tools::checkIfNotEmpty("pubKey", this->pubKey);
-  tools::checkIfNotEmpty("notifyToken", this->notifyToken);
   tools::checkIfNotEmpty("deviceType", this->deviceType);
   tools::checkIfNotEmpty("appVersion", this->appVersion);
   tools::checkIfNotEmpty("deviceOs", this->deviceOs);
 }
 
 void DeviceSessionItem::assignItemFromDatabase(
     const AttributeValues &itemFromDB) {
   try {
     this->sessionID = itemFromDB.at(DeviceSessionItem::FIELD_SESSION_ID).GetS();
     this->deviceID = itemFromDB.at(DeviceSessionItem::FIELD_DEVICE_ID).GetS();
     this->pubKey = itemFromDB.at(DeviceSessionItem::FIELD_PUBKEY).GetS();
     this->notifyToken =
         itemFromDB.at(DeviceSessionItem::FIELD_NOTIFY_TOKEN).GetS();
     this->deviceType =
         itemFromDB.at(DeviceSessionItem::FIELD_DEVICE_TYPE).GetS();
     this->appVersion =
         itemFromDB.at(DeviceSessionItem::FIELD_APP_VERSION).GetS();
     this->deviceOs = itemFromDB.at(DeviceSessionItem::FIELD_DEVICE_OS).GetS();
     this->checkpointTime = std::stoll(
         std::string(
             itemFromDB.at(DeviceSessionItem::FIELD_CHECKPOINT_TIME).GetS())
             .c_str());
     this->isOnline =
         itemFromDB.at(DeviceSessionItem::FIELD_IS_ONLINE).GetBool();
   } catch (std::logic_error &e) {
     throw std::runtime_error(
         "Invalid device session database value " + std::string(e.what()));
   }
   this->validate();
 }
 
 std::string DeviceSessionItem::getTableName() const {
   return config::ConfigManager::getInstance().getParameter(
       config::ConfigManager::OPTION_DYNAMODB_SESSIONS_TABLE);
 }
 
 PrimaryKeyDescriptor DeviceSessionItem::getPrimaryKeyDescriptor() const {
   return PrimaryKeyDescriptor(DeviceSessionItem::FIELD_SESSION_ID);
 }
 
 PrimaryKeyValue DeviceSessionItem::getPrimaryKeyValue() const {
   return PrimaryKeyValue(this->sessionID);
 }
 
 std::string DeviceSessionItem::getSessionID() const {
   return this->sessionID;
 }
 
 std::string DeviceSessionItem::getDeviceID() const {
   return this->deviceID;
 }
 
 std::string DeviceSessionItem::getPubKey() const {
   return this->pubKey;
 }
 
 std::string DeviceSessionItem::getNotifyToken() const {
   return this->notifyToken;
 }
 
 std::string DeviceSessionItem::getDeviceType() const {
   return this->deviceType;
 }
 
 std::string DeviceSessionItem::getAppVersion() const {
   return this->appVersion;
 }
 
 std::string DeviceSessionItem::getDeviceOs() const {
   return this->deviceOs;
 }
 
 int64_t DeviceSessionItem::getCheckpointTime() const {
   return this->checkpointTime;
 }
 
 bool DeviceSessionItem::getIsOnline() const {
   return this->isOnline;
 }
 
 } // namespace database
 } // namespace network
 } // namespace comm