How to get a notification when Teams online meeting has started

Nyan Cat 0

Hi I am trying to subscribe to online meeting call events.

I am using MS Graph Python SDK and a GraphServiceClient to post the subscription request.

I have subscription for new event creation and when this happens I check whether it is on online meeting and if it is I then pass the join url to this function: I checked the join url - it is always functional link.

I get this error:

APIError

    Code: 400

    message: None

    error: MainError(additional_data={}, code='BadRequest', details=None, inner_error=InnerError(additional_data={}, client_request_id='d0340ddd-8299-4816-a04e-f871ec71b673', date=DateTime(2025, 1, 15, 14, 48, 28, tzinfo=Timezone('UTC')), odata_type=None, request_id='7e2c390c-c04a-46dd-adbd-84eec2dab52a'), message='Bad Request - Error in query syntax.', target=None)

Nyan Cat 0

async def subscribe_to_call_notifications(self, join_url):
    expiration_time = datetime.now(timezone.utc) + timedelta(minutes=10)
    request_body = Subscription(
        change_type="created",
        notification_url=self.notification_url,  resource=f"/communications/onlineMeetings(joinWebUrl='{join_url}')/meetingCallEvents",
        expiration_date_time=expiration_time,
        client_state="secretClientValue"
    )
    try:
        response = await self.graph_client.subscriptions.post(body=request_body)
        print(response)
    except Exception as e:
        print(f"Failed to post call subscription: {e}")

This is the function that handles it. I am sure the join url is correct.

JimmyYang-MSFT 55,706 Reputation points Microsoft Vendor

2025-01-16T05:27:02.0266667+00:00

@Nyan Cat Teams tag is mainly focused on the general issue of Microsoft Teams troubleshooting. According to your description, your question is not in our support scope, so I will also add Teams development tag to your thread. Thanks for your understanding!
Nivedipa-MSFT 3,061 Reputation points Microsoft Vendor

2025-01-16T06:56:19.6566667+00:00

Thank you for bringing this issue to our attention. We will look into it and get back to you shortly.
Nyan Cat 0 Reputation points

2025-01-16T10:07:13.82+00:00

Okay, great, thanks for clarifying!
Nivedipa-MSFT 3,061 Reputation points Microsoft Vendor

2025-01-16T18:48:49.12+00:00

@Nyan Cat - It looks like you're encountering an API error (ErrorCode: 400) while trying to create a subscription for online meeting call events using the Microsoft Graph Python SDK. A 400 Bad Request error typically indicates that there is something wrong with the request you're sending to the API.

Here are some steps and considerations to help you troubleshoot and resolve this issue:

Verify the Subscription Request: Ensure that the subscription request is correctly formatted and includes all required fields. Refer to the Microsoft Graph API documentation for subscriptions to verify that your request parameters are correct.

Check Permissions: Ensure that your application has the necessary permissions to create a subscription for online meeting call events. You might need permissions such as OnlineMeetings.ReadWrite or similar.

Validate Join URL: Even though you've mentioned that the join URL is functional, double-check that it is correctly formatted and accessible. Ensure it adheres to any specific requirements of the API.

Inspect the Full Error Message: Sometimes the error message may provide more details in its inner_error or other fields. Ensure you are capturing and inspecting the full error response. This can often provide more insight into what might be causing the issue.
Nivedipa-MSFT 3,061 Reputation points Microsoft Vendor

2025-01-17T08:20:08.3066667+00:00

@Nyan Cat - Could you please confirm if the above suggestion helped you, or are you still facing this issue?

Nyan Cat 0

Hi, I did all of those steps prior to asking the question in here.

I tried something simpler get meeting details and it seems there is an error in there already:

async def get_meeting_details(user_id, meeting_id):
    try:
        meeting_details = await 	graph_client.users.by_user_id(user_id).online_meetings.by_online_meeting_id(meeting_id).get()
        print(meeting_details)
    except Exception as e:
        print(f"Failed to get event details for meeting id {meeting_id}: {e}")

I get this error for this code:

Failed to get event details for meeting id 19:meeting_NmM4YTcwN2UtOTE5Ni00YzdmLThkZWQtZTdmMGEyMWYxMzdk@thread.v2:

    APIError

    Code: 403

    message: None

    error: MainError(additional_data={}, code='General', details=None, inner_error=InnerError(additional_data={}, client_request_id='5be3fd19-12a8-4b6f-a54b-4bf282243091', date=DateTime(2025, 1, 17, 9, 55, 26, tzinfo=Timezone('UTC')), odata_type=None, request_id='027ed118-cd7d-40b7-9e09-5d17ac2917b7'), message='No application access policy found for this app.', target=None)

I am sure the user id and meeting id are correct, since I am providing them as literals.

Nyan Cat 0 Reputation points

2025-01-17T10:02:05.4733333+00:00

I will try to get the information from the inner error.

'No application access policy found for this app.' This seems like a policy issue, but my App on Azure has all the onlinemeeting policies it can have.

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