In case of any error during the import process, system tries to revert to the previous configuration. If any error occurs during this revert process, then Code Promotion displays a message specifying the component for which the revert process failed. Components include Access Gateway configuration and dependent policies and policy extensions. In this case, you need to restore the pre-import configuration manually by using ambackup. You should take a backup by using the ambackup file before importing the configuration data.