[图片]这个faceCode返回的不应该是纯数字类型的吗，为啥是带字母的

微信刷脸支付每次都要输入手机号后4位怎么解决？

参数<xml> <appid>wxf799c32b105b03b4</appid> <mch_id>1372586902</mch_id> <now>1588731658665</now> <version>1</version> <sign_type>MD5</sign_type> <nonce_str>ca1dd9ea56d741abaef50c8e07da0f7b</nonce_str> <sign>4d673c12cae77cf38ae6728334b552cb</sign> <store_id>12345</store_id> <store_name>管理中心</store_name> <device_id>DEV001</device_id> <rawdata>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</rawdata> </xml> 返回 <xml><return_code><![     CDATA[         SYSTEMERROR     ] ]></return_code><return_msg><![     CDATA[         生成authinfo失败     ] ]></return_msg><nonce_str><![     CDATA[         ki9pfujJMxS5lanwD9TnWuucgi3Biypu     ] ]></nonce_str><sign><![     CDATA[         81F948EF94F3B6B89984EF9CB98615F0     ] ]></sign></xml> 这个是什么问题

刷脸支付获取faceCode,通过条码支付方式提示无权限使用该付款码，这个大概是什么问题