Azure active directory 当使用图形浏览器创建调用时，我得到一个错误代码401

我尝试使用graph explorer创建一个调用，但得到一个错误代码401和401 “您可能没有此呼叫的权限。请修改您的权限。”

我已经通过Azure active directory设置了权限

Calls.Initiate.All
Calls.InitiateGroupCall.All
Calls.JoinGroupCall.All
Calls.JoinGroupCallAsGuest.All

请求如下：

POST https://graph.microsoft.com/beta/app/calls
Content-Type: application/json

{
  "callbackUri": "https://bot.contoso.com/api/calls",
  "mediaConfig": {
    "@odata.type": "#microsoft.graph.appHostedMediaConfig",
    "blob": "<media config blob>"
  },
  "requestedModalities": [ "audio" ],
  "source": {
    "identity": {
      "application": {
        "id": "MyRealApplicationCode",
        "tenantId": MyRealTenantId,
        "displayName": "IT Bot"
      }
    },
    "languageId": "languageId-value",
    "region": "region-value"
  },
  "subject": "Test Call",
  "targets": [
    {
      "identity": {
        "user": {
          "id": "MyRealUserId",
          "tenantId": MyRealTenantId,
          "displayName": "Heidi Steen"
        }
      }
    }
  ],
  "tenantId": "tenantId-value"
}

{
    "error": {
        "code": "UnknownError",
        "message": "{\"errorCode\":\"9000\",\"message\":\"Unsupported AAD Identity.\",\"instanceAnnotations\":[]}",
        "innerError": {
            "request-id": "b0232477-048b-486b-9d43-77aacfb3fa2f",
            "date": "2019-07-16T06:44:00"
        }
    }
}

---

无法使用graph explorer测试此api，因为此api不支持graph explorer使用的委派权限。是委托权限和应用程序权限之间的差异

您需要通过使用获取访问令牌，然后使用此访问令牌调用此api。有关详细步骤，请参阅