diff --git a/src/spaceone/cost_analysis/conf/global_conf.py b/src/spaceone/cost_analysis/conf/global_conf.py
index d45ba6e5..20a73857 100644
--- a/src/spaceone/cost_analysis/conf/global_conf.py
+++ b/src/spaceone/cost_analysis/conf/global_conf.py
@@ -33,7 +33,7 @@
 
 CONNECTORS = {
     "SpaceConnector": {
-        "backend": "spaceone.core.connector.space_connector.SpaceConnector",
+        "backend": "spaceone.core.connector.space_connector:SpaceConnector",
         "endpoints": {
             "identity": "grpc://identity:50051",
             "plugin": "grpc://plugin:50051",
diff --git a/src/spaceone/cost_analysis/manager/notification_manager.py b/src/spaceone/cost_analysis/manager/notification_manager.py
index d1b3a3ec..7e84b06d 100644
--- a/src/spaceone/cost_analysis/manager/notification_manager.py
+++ b/src/spaceone/cost_analysis/manager/notification_manager.py
@@ -8,13 +8,12 @@
 
 
 class NotificationManager(BaseManager):
-
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        self.notification_connector: SpaceConnector = self.locator.get_connector('SpaceConnector',
-                                                                                 service='notification',
-                                                                                 token=config.get_global('TOKEN'))
+        self.notification_connector: SpaceConnector = self.locator.get_connector(
+            "SpaceConnector", service="notification", token=config.get_global("TOKEN")
+        )
 
     def create_notification(self, message):
-        _LOGGER.debug(f'Notify message: {message}')
-        return self.notification_connector.dispatch('Notification.create', message)
+        _LOGGER.debug(f"Notify message: {message}")
+        return self.notification_connector.dispatch("Notification.create", message)