Graph API Beta版LearningProviders接口调用返回401错误求助

I'm trying to use the Microsoft Graph Beta GET /employeeExperience/learningProviders API for listing learning providers. My tenant has the new Viva integration enabled, and all related features work perfectly fine in Microsoft Teams.

However, whenever I call this endpoint using an admin account, I keep getting a 401 error with the following response body:

{
  "error": {
    "code": "UnknownError",
    "message": "",
    "innerError": {
      "date": "2022-07-29T12:50:14",
      "request-id": "b985f230-5e34-4e95-9c03-4a192b9cd2e2",
      "client-request-id": "b985f230-5e34-4e95-9c03-4a192b9cd2e2"
    }
  }
}

I've already tried two approaches to call this API, but neither gives a valid response:

• Using Graph Explorer, where I've added the correct permissions to the Graph Explorer app registration
• Using a newly created app registration with the appropriate delegated permissions configured

Has anyone else run into the same issue? Any help would be greatly appreciated.

内容的提问来源于stack exchange，提问作者Daniele Zorzi