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How to Fix Microsoft Graph Error 405 Method Not Allowed When Creating a User

Emma Brown Oct 8, 2026 869 views

Question details

The user needs to resolve an HTTP 405 Method Not Allowed error encountered while attempting to create a user account via the Microsoft Graph API.

How to Fix Microsoft Graph Error 405 Method Not Allowed When Creating a User

Product: Microsoft Graph API
Device & OS: not provided
Scenario: Creating a new user account by sending a request to the Microsoft Graph users endpoint.
Observed behavior: The API returns an HTTP 405 Method Not Allowed response, indicating that the HTTP method used or the request context is rejected by the server.

Before you start

Before troubleshooting, ensure you have access to your API client code, the correct Microsoft 365 tenant administrator credentials, and a recently generated authentication token.

Solution 1Recommended

Verify API Endpoint and HTTP Method

Ensure that your API request is formatted correctly using the exact HTTP method required by Microsoft Graph for user creation.

A 405 error is most commonly triggered when you use the wrong HTTP verb (like GET or PUT) on an endpoint that specifically expects a POST request.

Check the Request Method

Review your application code or API testing tool (like Postman) to ensure you are explicitly using a POST request to create a new user.

Verify the Endpoint URL

Confirm you are targeting the correct Graph API endpoint. For user creation, the request URL must be exactly https://graph.microsoft.com/v1.0/users.

Review Request Body Parameters

Make sure your JSON payload contains all mandatory user properties, including accountEnabled, displayName, mailNickname, passwordProfile, and userPrincipalName.

Validation Tip: Always cross-reference your request structure with the official Microsoft Graph REST API v1.0 documentation to ensure no mandatory fields have been deprecated or updated.

Solution 2

Validate Permissions and Authentication Token

Check if your Azure AD application has the correct permissions granted and that your authentication token is valid for the operation.

Solution 3

Escalate to Microsoft Support

If your API configurations are correct and the error persists, escalate the issue through official Microsoft support channels.

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Frequently Asked Questions

What does an HTTP 405 Method Not Allowed error mean in Microsoft Graph?

It means the HTTP method you are using (e.g., GET, PUT, DELETE) is not supported by the specific Microsoft Graph endpoint URL you are calling. The server recognizes the endpoint but rejects the action you are trying to perform on it.

Which HTTP method should I use to create a user in Microsoft Graph?

You must use the POST method sent to the /users endpoint. Using GET or other methods will trigger the 405 error because the endpoint expects a payload to create a new directory object.

Can missing permissions cause a 405 error in Microsoft Graph?

Typically, missing permissions result in a 403 Forbidden error. However, if an authentication token is entirely invalid, misconfigured, or missing the correct tenant context, the API gateway might misinterpret the request routing, sometimes resulting in a 405 response.

Where can I find the Request ID to troubleshoot Graph API errors?

The Request ID is returned in the HTTP response headers of the failed API call under the key 'client-request-id' or 'request-id'. You can use this ID when searching your logs or when opening a ticket with Microsoft support.

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