diff --git a/common/core/northbound/grpc/default_api_handler.go b/common/core/northbound/grpc/default_api_handler.go
index e1aa1f9..acc1f2f 100644
--- a/common/core/northbound/grpc/default_api_handler.go
+++ b/common/core/northbound/grpc/default_api_handler.go
@@ -388,3 +388,8 @@
 	log.Debugw("DisablePort-unimplemented", log.Fields{"id": port.DeviceId})
 	return nil, nil
 }
+
+// on demand api for test action
+func (handler *DefaultAPIHandler) StartOmciTestAction(ctx context.Context, omcitestrequest *voltha.OmciTestRequest) (*voltha.TestResponse, error) {
+	return nil, errors.New("StartOmciTestAction-unimplemented")
+}