添加共享联系人成为Google网上论坛的成员是行不通的

Question

我正在尝试添加共享联系人以成为Google群组的成员，但它提供了以下错误

Google.Apis.Requests.RequestError
Invalid Input: memberKey [400]
Errors [
    Message[Invalid Input: memberKey] Location[ - ] Reason[invalid] Domain[global]
]

输入：

groupKey : grp_tw_dist01_display@dev.groupondev.com 
memberKey: 2809da4408a97397
role: MEMBER
Api: PUT https: //www.googleapis.com/admin/directory/v1/groups/groupKey/members/memberKey