不，可惜目前无法实现.您至少需要安装Exchange架构扩展.

no, sadly that is not possible currently. you need to install at least the Exchange Schema Extensions.

您可以使用其他属性并在AADC中修改所有相关的同步规则，但我不建议这样做.

You can use other attributes and modify all the related Sync Rules in AADC but I would not recommend that.

/彼得