diff --git a/src/spaceone/inventory_v2/interface/grpc/__init__.py b/src/spaceone/inventory_v2/interface/grpc/__init__.py
index cf0f475..3585b9f 100644
--- a/src/spaceone/inventory_v2/interface/grpc/__init__.py
+++ b/src/spaceone/inventory_v2/interface/grpc/__init__.py
@@ -4,9 +4,11 @@
 from .job import Job
 from .job_task import JobTask
 from .metric import Metric
-from .namespace_group import NamespaceGroup
-from .namespace import Namespace
-from .metric import Metric
+
+# from .namespace_group import NamespaceGroup
+# from .namespace import Namespace
+from .metric_data import MetricData
+from .metric_example import MetricExample
 
 _all_ = ["app"]
 
@@ -15,6 +17,8 @@
 app.add_service(Collector)
 app.add_service(Job)
 app.add_service(JobTask)
-app.add_service(NamespaceGroup)
-app.add_service(Namespace)
-app.add_service(Metric)
\ No newline at end of file
+# app.add_service(NamespaceGroup)
+# app.add_service(Namespace)
+app.add_service(Metric)
+app.add_service(MetricData)
+app.add_service(MetricExample)
diff --git a/src/spaceone/inventory_v2/interface/grpc/metric_data.py b/src/spaceone/inventory_v2/interface/grpc/metric_data.py
index e8d06cf..d9859bc 100644
--- a/src/spaceone/inventory_v2/interface/grpc/metric_data.py
+++ b/src/spaceone/inventory_v2/interface/grpc/metric_data.py
@@ -1,6 +1,6 @@
 from spaceone.core.pygrpc import BaseAPI
 from spaceone.api.inventory_v2.v1 import metric_data_pb2, metric_data_pb2_grpc
-from spaceone.inventory.service.metric_data_service import MetricDataService
+from spaceone.inventory_v2.service.metric_data_service import MetricDataService
 
 
 class MetricData(BaseAPI, metric_data_pb2_grpc.MetricDataServicer):
diff --git a/src/spaceone/inventory_v2/interface/grpc/metric_example.py b/src/spaceone/inventory_v2/interface/grpc/metric_example.py
index f39d65d..fbffec8 100644
--- a/src/spaceone/inventory_v2/interface/grpc/metric_example.py
+++ b/src/spaceone/inventory_v2/interface/grpc/metric_example.py
@@ -1,6 +1,6 @@
 from spaceone.core.pygrpc import BaseAPI
 from spaceone.api.inventory_v2.v1 import metric_example_pb2, metric_example_pb2_grpc
-from spaceone.inventory.service.metric_example_service import MetricExampleService
+from spaceone.inventory_v2.service.metric_example_service import MetricExampleService
 
 
 class MetricExample(BaseAPI, metric_example_pb2_grpc.MetricExampleServicer):
diff --git a/src/spaceone/inventory_v2/managed_resource/metric/created_count.yaml b/src/spaceone/inventory_v2/managed_resource/metric/created_count.yaml
new file mode 100644
index 0000000..2cad4e7
--- /dev/null
+++ b/src/spaceone/inventory_v2/managed_resource/metric/created_count.yaml
@@ -0,0 +1,37 @@
+---
+metric_id: metric-managed-created-count
+name: Created Count
+metric_type: COUNTER
+resource_type: inventory.Asset
+query_options:
+  group_by:
+    - key: provider
+      name: Provider
+      reference:
+        resource_type: identity.Provider
+        reference_key: provider
+      default: true
+    - key: asset_group_id
+      name: Asset Group
+      default: true
+    - key: asset_type_id
+      name: Asset Type
+      default: true
+    - key: region_code
+      name: Region
+      reference:
+        resource_type: inventory.Region
+        reference_key: region_code
+    - key: account
+      name: Cloud Account ID
+    - key: resource_id
+      name: Resource ID
+    - key: name
+      name: Resource Name
+  fields:
+    value:
+      operator: count
+date_field: created_at
+unit: Count
+namespace_id: ns-managed-asset-change-history
+version: '1.0'
\ No newline at end of file
diff --git a/src/spaceone/inventory_v2/managed_resource/metric/total_count.yaml b/src/spaceone/inventory_v2/managed_resource/metric/total_count.yaml
new file mode 100644
index 0000000..27519da
--- /dev/null
+++ b/src/spaceone/inventory_v2/managed_resource/metric/total_count.yaml
@@ -0,0 +1,29 @@
+---
+metric_id: metric-managed-total-count
+name: Total Count
+metric_type: GAUGE
+resource_type: inventory.Asset
+query_options:
+  group_by:
+    - key: provider
+      name: Provider
+      reference:
+        resource_type: identity.Provider
+        reference_key: provider
+      default: true
+    - key: asset_type_id
+      name: Asset Type
+      default: true
+    - key: region_id
+      name: Region
+      reference:
+        resource_type: inventory.Region
+        reference_key: region_code
+    - key: account
+      name: Cloud Account ID
+  fields:
+    value:
+      operator: count
+unit: Count
+namespace_id: ns-managed-asset-summary
+version: '1.0'
\ No newline at end of file
diff --git a/src/spaceone/inventory_v2/manager/metric_example_manager.py b/src/spaceone/inventory_v2/manager/metric_example_manager.py
index 7cfce50..fd455c6 100644
--- a/src/spaceone/inventory_v2/manager/metric_example_manager.py
+++ b/src/spaceone/inventory_v2/manager/metric_example_manager.py
@@ -3,7 +3,7 @@
 
 from spaceone.core.model.mongo_model import QuerySet
 from spaceone.core.manager import BaseManager
-from spaceone.inventory.model.metric_example.database import MetricExample
+from spaceone.inventory_v2.model.metric_example.database import MetricExample
 
 _LOGGER = logging.getLogger(__name__)
 
diff --git a/src/spaceone/inventory_v2/model/metric/request.py b/src/spaceone/inventory_v2/model/metric/request.py
index 747cd22..e0d7097 100644
--- a/src/spaceone/inventory_v2/model/metric/request.py
+++ b/src/spaceone/inventory_v2/model/metric/request.py
@@ -77,7 +77,7 @@ class MetricSearchQueryRequest(BaseModel):
     is_managed: Union[bool, None] = None
     exists_only: Union[bool, None] = None
     namespace_id: Union[str, None] = None
-    workspace_id: Union[str, list, None] = None
+    workspace_id: Union[list, str, None] = None
     domain_id: str