Microsoft Graph API returns empty value for one user's calendar events. How to troubleshoot?

Question

Microsoft Graph API returns empty value for one user's calendar events. How to troubleshoot?

Jomit Jose 0

I am utilizing the Microsoft Graph API with the endpoint "GET /me/calendar/events" to fetch calendar events from users who have successfully connected their calendars. However, I encountered an issue with one specific user where the API response returns empty:

[
  "@odata.context" => "https://graph.microsoft.com/v1.0/$metadata#users('outlook_ABCD1234EFGH56789%40outlook.com')/calendar/events",
  "value" => [],
]

The empty "value" field indicates that no events are being retrieved for this particular user. I have confirmed that the user has events in their calendar, so this behavior seems unexpected.

What potential factors could cause this problem, and how can it be resolved to successfully fetch the calendar events for this specific user?

Thank you for your expertise and support in advance!

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Answer 1

Anonymous

Hi Jomit Jose,

Thanks for reaching out. Can you try the GET /users/[userid]/events endpoint for the affected user? To assist you better please provide the below information:

Does the user have a requisite licensed assigned? If so is it same as the one assigned to the users for whom the Events graph query is working?
How are you calling the endpoint? Using SDK or application such as Graph API or Postman?

Thanks.

Jomit Jose 0 Reputation points

2023-08-07T15:28:03.64+00:00
I tried the GET /users/[userid]/events endpoint also, resulting in the same response:

[ "@odata.context" => "https://graph.microsoft.com/v1.0/$metadata#users('outlook_ABCD12345EFGH7890%40outlook.com')/events", "value" => [], ]

and

[ "@odata.context" => "https://graph.microsoft.com/v1.0/$metadata#users('abcd12345efgh7890')/events", "value" => [], ]

Now, to address the questions:

I didn't quite get the requisite license part. I have an app registered in the Azure portal that I use to authenticate my customers. Once they are authenticated, I will show their events in the calendar on our saas platform. This is working for all of our customers, except this new customer.

I am using Microsoft PHP SDK (https://github.com/microsoftgraph/msgraph-sdk-php). I am constructing a Microsoft\Graph\Graph object and using it to call the required APIs.
Anonymous

2023-08-08T17:22:07.2833333+00:00

Hi Jomit Jose,

Thanks for your reply. Graph SDKs are not supported. I would suggest posting the question on the https://github.com/microsoftgraph/msgraph-sdk-php Github forum. Can you reproduce the issue using Graph Explorer or Postman?

Thanks.
Anonymous

2023-08-10T14:45:46.7466667+00:00

Hi Jomit Jose,

Good Day. Were you able to reproduce the issue using Graph Explorer or Postman?

Thanks.

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Microsoft Graph API returns empty value for one user's calendar events. How to troubleshoot?

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