发送「学校通知」调用失败 1：使用自建应用的agendid发送消息，返回错误如下： {"errcode":301002,"errmsg":"not allow operate another agent with this accesstoken., hint: [1578655260_55_053437161ac0fa515d91891f7fd089e0], from ip: 115.193.160.192, more info at https://open.work.weixin.qq.com/devtool/query?e=301002","invalid_external_user":[],"invalid_tag":[],"invalid_parent_userid":[],"invalid_student_userid":[],"invalid_party":[]} 2：使用外部联系人agentid，返回错误如下： {"errcode":48002,"errmsg":"api forbidden, hint: [1578653419_54_844735d2b231fb9cea8acca9d26d0266], from ip: 121.41.59.140, more info at https://open.work.weixin.qq.com/devtool/query?e=48002","invalid_external_user":[],"invalid_tag":[],"invalid_parent_userid":[],"invalid_student_userid":[],"invalid_party":[]} 请问企业微信教育版中的”自建应用“需要如何配置，才能调用「学校通知」给家长发送消息