diff --git a/errors/consts.go b/errors/consts.go
index 89c0bec..8802a46 100644
--- a/errors/consts.go
+++ b/errors/consts.go
@@ -14,6 +14,7 @@ const (
 	ErrTimeout        = Error("TimeoutError")
 
 	ErrNotFound        = Error("NotFoundError")
+	ErrNotEmpty        = Error("NotEmptyError")
 	ErrDuplicateId     = Error("DuplicateIdError")
 	ErrInvalidStatus   = Error("InvalidStatusError")
 	ErrNotImplemented  = Error("NotImplementedError")
diff --git a/util/compare/syncresults.go b/util/compare/syncresults.go
index 449caa9..3d56ab9 100644
--- a/util/compare/syncresults.go
+++ b/util/compare/syncresults.go
@@ -17,6 +17,8 @@ package compare
 import (
 	"fmt"
 	"strings"
+
+	"yunion.io/x/pkg/errors"
 )
 
 type SyncResult struct {
@@ -82,6 +84,15 @@ func (self *SyncResult) IsError() bool {
 	return self.errors != nil && len(self.errors) > 0
 }
 
+func (self *SyncResult) IsGenerateError() bool {
+	for _, err := range self.errors {
+		if e := errors.Cause(err); e != errors.ErrNotImplemented && e != errors.ErrNotSupported && e != errors.ErrNotEmpty {
+			return true
+		}
+	}
+	return false
+}
+
 func (self *SyncResult) Result() string {
 	msg := fmt.Sprintf("removed %d failed %d updated %d failed %d added %d failed %d", self.DelCnt, self.DelErrCnt, self.UpdateCnt, self.UpdateErrCnt, self.AddCnt, self.AddErrCnt)
 	if self.IsError() {