diff --git a/pymilvus/client/entity_helper.py b/pymilvus/client/entity_helper.py
index d66324610..93ee07182 100644
--- a/pymilvus/client/entity_helper.py
+++ b/pymilvus/client/entity_helper.py
@@ -233,7 +233,7 @@ def convert_to_array(obj: List[Any], field_info: Any):
         field_data.string_data.data.extend(obj)
         return field_data
     raise ParamError(
-        message=f"UnSupported element type: {element_type} for Array field: {field_info.get('name')}"
+        message=f"Unsupported element type: {element_type} for Array field: {field_info.get('name')}"
     )
 
 
@@ -424,7 +424,7 @@ def pack_field_value_to_field_data(
                 % (field_name, "array", type(field_value))
             ) from e
     else:
-        raise ParamError(message=f"UnSupported data type: {field_type}")
+        raise ParamError(message=f"Unsupported data type: {field_type}")
 
 
 # TODO: refactor here.
@@ -562,7 +562,7 @@ def entity_to_field_data(entity: Any, field_info: Any, num_rows: int):
                 % (field_name, "sparse_float_vector", type(entity.get("values")[0]))
             ) from e
     else:
-        raise ParamError(message=f"UnSupported data type: {entity_type}")
+        raise ParamError(message=f"Unsupported data type: {entity_type}")
 
     return field_data
 
diff --git a/pymilvus/client/grpc_handler.py b/pymilvus/client/grpc_handler.py
index d315d23da..2655f1e28 100644
--- a/pymilvus/client/grpc_handler.py
+++ b/pymilvus/client/grpc_handler.py
@@ -536,7 +536,7 @@ def _prepare_batch_insert_request(
         if param and not isinstance(param, milvus_types.InsertRequest):
             raise ParamError(message="The value of key 'insert_param' is invalid")
         if not isinstance(entities, list):
-            raise ParamError(message="None entities, please provide valid entities.")
+            raise ParamError(message="'entities' must be a list, please provide valid entity data.")
 
         schema = kwargs.get("schema")
         if not schema:
@@ -634,7 +634,7 @@ def _prepare_batch_upsert_request(
         if param and not isinstance(param, milvus_types.UpsertRequest):
             raise ParamError(message="The value of key 'upsert_param' is invalid")
         if not isinstance(entities, list):
-            raise ParamError(message="None entities, please provide valid entities.")
+            raise ParamError(message="'entities' must be a list, please provide valid entity data.")
 
         schema = kwargs.get("schema")
         if not schema:
@@ -691,7 +691,7 @@ def _prepare_row_upsert_request(
         **kwargs,
     ):
         if not isinstance(rows, list):
-            raise ParamError(message="None rows, please provide valid row data.")
+            raise ParamError(message="'rows' must be a list, please provide valid row data.")
 
         fields_info, enable_dynamic = self._get_info(collection_name, timeout, **kwargs)
         return Prepare.row_upsert_param(