microsoft-graph-docs | Documentation for the Microsoft Graph REST API | REST library

I'm unable to find users in Azure AD B2C by their phone number used to sign in using the Microsoft Graph API. According to the documentation, I should be able to query users by their identities as long as I provide issuer and issuerAssignedId in the filter, but I always receive an empty result set.

I've tried:

• Querying by an email address identity instead. This succeeds.
• Signing in for the first time with the phone number, in case there's some sort of initialization that needs to happen. The user is still not returned.
• Querying by the user attribute mobilePhone. Querying by mobilePhone requires setting ConsistencyLevel=eventual, and ConsistencyLevel=eventual is not supported in Azure AD B2C.

Below is a request that successfully creates a test user, followed by requests trying to find that user by the email address or by the phone number.

The variable {{B2C_TENANT}} is the full tenant domain: example.onmicrosoft.com.

First, I create the user and give it two sign in identities: One with an email address, one with a phone number.

Request:

When I send batch request made of calendar appointment request to Graph API, I seldom encounter a improper response from the API: some XML are injected as is in the JSON response. This is impossible to unserialize, so I cannot know which appointment had issues, and it leaves no choice but to reiterate the same calendar appointments batch, which poses performance issue.

The request to batch API looks as follow (I intentionally hide information with *** in the post data below and did not show with ... the 3 others requests to calendar Graph API)

I'm trying to request the supported timezones in the IANA format for a user (in Java), and getting the following error:

We need to read out distribution lists from a contact folder of a dedicated exchange/outlook mailbox (O365). The process must run as a service with no user interaction.

Unfortunately the Graph API does not support distribution lists (not even the Graph beta version does). Because of this we have to use another API - I tried using EWS.

I succeeded by granting full_access_as_app permission to our service. However this allows to read and modify ANY data in ANY mailbox which is a security risk. Granting this permission only to read out some distribution lists from one mailbox is not acceptable.

So I tried to use the ROPC flow that should allow authenticating a user and then accessing the mailbox with the permissions of this user. I followed the information here: How to get OAuth2 access token for EWS managed API in service/daemon application

(Btw I found this post linked in the discussion here: https://github.com/microsoftgraph/microsoft-graph-docs/issues/5659 which has some more information about the topic.)

I exactly followed the steps mentioned above but unfortunately this is not working: I always get a “401 Unauthorized” exception when doing the EWS calls (OAuth calls succeed) and no additional information.

According to https://developer.microsoft.com/en-us/graph/blogs/upcoming-changes-to-exchange-web-services-ews-api-for-office-365/ this is no longer working. So how can I read out distribution lists from a specific mailbox without giving full access and without an interactive login?

EDIT Here as requested the full code:

I am trying to create new skills for different users using the Microsoft Graph API, but it always ends in the following error response.

I'm currently creating an dotnet core app to consume and process data from an Excel sheet stored in personal OneDrive. I'm using MSAL to create a session token and the data consumption is working great. Here's my working code:

I have the same issue as has been reported here but I can't seem to find a follow-up question. For the sake of completeness, this is what this person reported and it's the same as my issue:

"We are storing the calendar event id in our DB, and have noticed that there are duplicate Ids being set for graph. Perhaps we need to be using the iCalUid which stays unique, although it is not apparent that we should be using this in the Microsoft documentation. Furthermore, requesting an event by iCalUid requires filtering through optional parameters, where as the Get method for event simply uses the Id. Again, not so obvious.

Repro steps:

• Write a console app and creates x amount of events with the same start, end, owner, subject, location, etc.
• Run it once with 5 events. Then run it again with 5 events.
• Finally, run it again for 100 events.

You should see that the ids from the first 2 batches, appears in the 3rd (larger) batch."

I'm fresh out of ideas. There are no exceptions and everything seems normal but we get duplicate event IDs when we create a large number of events with roughly the same properties (start and end times may differ).

How can we solve this duplicate event id issue?

Context:
I am trying to download files into a buffer for AngularJS application in order to forward the file to the backend for storing on the server (backend is not under my control) therefore I need to get file data into Blob which then gets uploaded my our own servers.

Issue:
Microsoft graph gives me their recommended @microsoft.graph.downloadUrl property in the JSON file which retrieves a list of all files in the currently selected folder. As I use it to download the file itself I get hit with Access to XMLHttpRequest at [the URL from @microsft.graph.downloadUrl] from origin 'http://localhost:8080' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

My code:

We have an app that creates MS Graph Subscriptions where a user wishes to 'track' an outlook email conversation. The subscription uses the conversation id of the email to send notifications when an email within the conversation is sent or received. Once we receive a notification from MS Graph, we then use the message id to get details about the email so we can store it in our CRM.

I am trying to find information on what the limitations/throttling are in regards to this. I have read the info here and here but neither are very specific. I also raised a GitHub issue with the MS Graphs docs team here but they have not responded.

I really want to know:

• Is there a limit for Outlook based Graph subscriptions per user?
• Is there a limit to the number of messages that we can retrieve per user?