作为活动参与者设置Shared Extended Properties遇403错误，与文档冲突

作为Google Calendar活动的参与者（非组织者），尝试为某一事件设置Shared Extended Properties时持续收到403错误。官方文档提及参与者可编辑事件的共享扩展属性，但实际返回错误如下：

"error": {
  "errors": [
   {
    "domain": "calendar",
    "reason": "forbiddenForNonOrganizer",
    "message": "Shared properties can only be changed by the organizer of the event."
   }
  ],
  "code": 403,
  "message": "Shared properties can only be changed by the organizer of the event."
 }
}

请问是否存在成功实现的案例？或是文档存在错误？

内容的提问来源于stack exchange，提问作者germau5