How to fix the request body must contain the following parameter: login_hint

Question

How to fix the request body must contain the following parameter: login_hint

Paweł Ryszewski 45

I have a problem with login to added account to a new platform that was given to my by a Contractor. I have a orange triangle to my location and when trying to enter this location i got such problem as in the title of this problem.

This is the report copied from pop-up window

Request Id: ec06e481-2829-4f1d-87d6-4f6744722c00

Correlation Id: f450a8b8-5439-4bcf-ae90-d1abc639a66a

Timestamp: 2025-03-11T13:37:58Z

Message: AADSTS900144: The request body must contain the following parameter: 'login_hint'.

Anonymous

2025-03-11T15:05:22.5866667+00:00

The same thing happened to me today as well! Will wait to see if there is a resolution to this.
Raja Pothuraju 23,790 Reputation points Microsoft External Staff Moderator

2025-03-13T06:39:50.2233333+00:00

Hello @Paweł Ryszewski,

I would like to check this up offline with you to understand the scenario to see why this kind of behavior is occurring. Please share your contact details over private message.
Lesley Gao 10 Reputation points

2025-04-03T10:55:13.2866667+00:00

I have the same problem these two days.
Venkata Jagadeep 1,400 Reputation points Microsoft External Staff Moderator

2025-04-04T14:08:24.2566667+00:00

Hello Lesley Gao,

Thank you for your response.

Please send us an email on 'azcommunity@microsoft.com' with Sub - "ATTN: djagadeep" and following details in the email body: Link to this thread/post.

We can connect offline and discuss further on this issue.

Accepted answer

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Anonymous

2025-03-11T15:05:22.5866667+00:00

The same thing happened to me today as well! Will wait to see if there is a resolution to this.
Raja Pothuraju 23,790 Reputation points Microsoft External Staff Moderator

2025-03-13T06:39:50.2233333+00:00

Hello @Paweł Ryszewski,

I would like to check this up offline with you to understand the scenario to see why this kind of behavior is occurring. Please share your contact details over private message.
Lesley Gao 10 Reputation points

2025-04-03T10:55:13.2866667+00:00

I have the same problem these two days.
Venkata Jagadeep 1,400 Reputation points Microsoft External Staff Moderator

2025-04-04T14:08:24.2566667+00:00

Hello Lesley Gao,

Thank you for your response.

Please send us an email on 'azcommunity@microsoft.com' with Sub - "ATTN: djagadeep" and following details in the email body: Link to this thread/post.

We can connect offline and discuss further on this issue.

Answer 1

Venkata Jagadeep 1,400 Microsoft External Staff Moderator

Hello Paweł Ryszewski,

As per the description, we understand that you are getting the below error while adding your location to the application

AADSTS900144: The request body must contain the following parameter: 'login_hint'.

This occurs when you're trying to authenticate against Azure AD, but the required login_hint parameter is missing from the request.

The login_hint parameter is used to pre-fill or suggest the username (typically an email address) for the user who is attempting to authenticate. It helps Azure AD identify the correct user account when sending a request to the authorization endpoint.

Missing login_hint in the Request:

Include the login_hint parameter with the username (e.g., email) in the request to Azure AD.

Request format included with login_hint as mentioned below.

https://login.microsoftonline.com/{tenant}/oauth2/v2.0/authorize?client_id={client_id}&response_type=code&redirect_uri={redirect_uri}&scope=openid&**login_hint=user@example.com**

Venkata Jagadeep 1,400 Reputation points Microsoft External Staff Moderator

2025-03-12T18:39:50.7666667+00:00

Hello Paweł Ryszewski,

Following up to see if the above answer was helpful. If this answers your query, do click Accept Answer and Yes for was this answer helpful. And, if you have any further query do let us know
Venkata Jagadeep 1,400 Reputation points Microsoft External Staff Moderator

2025-03-13T00:59:07.2933333+00:00

Hello Paweł Ryszewski,

As your contractor has given you a new application, and when you try to enter your location on to that application it is asking to provide login_hint.

Please confirm if you are providing your username while authenticating to this new application?

Here while authenticating, Entra ID is expecting user identifier (email, username etc.,) to be passed in the request, but it's not being passed in the authentication request. Application has been configured in Entra ID that it will provide the user identifier details in the authentication request. But, in your case it is missing in your request.

The below document shows the syntax of sign-in request and parameters that can be added.

https://learn.microsoft.com/en-us/entra/identity-platform/v2-protocols-oidc#send-the-sign-in-request

In prompt parameter, the prompt=login claim forces the user to enter their credentials on that request, which negates single sign-on. The prompt=none parameter is the opposite, and should be paired with a login_hint to indicate which user must be signed in. These parameters ensure that the user isn't presented with any interactive prompt at all. If the request can't be completed silently via single sign-on, the Microsoft identity platform returns an error. Causes include no signed-in user, the hinted user isn't signed in, or multiple users are signed in but no hint was provided.

To include a login_hint in an authentication request to Azure AD, append it as a query parameter to the authorization endpoint URL, like this: https://login.microsoftonline.com/{tenant}/oauth2/v2.0/authorize?**login_hint=user@example.com**

Hope this helps you understand how application and IDP interact and use parameters like login_hint, prompt=login etc.,
Raja Pothuraju 23,790 Reputation points Microsoft External Staff Moderator

2025-03-14T10:15:14.7966667+00:00

Hello @Paweł Ryszewski,Thank you for connecting over the call.

As we discussed, you are encountering an error when logging into Microsoft Teams after switching to another account. This issue is not originating from Entra ID.

However, when we accessed teams.microsoft.com via a browser to test the behavior, you were able to access all your Teams files through the browser session. We also observed that the account you are using is linked to a personal Microsoft account, and the conflict occurs when you try to access organizational data via a SharePoint link.

To resolve this, we cleared the cookies, and you were then able to access the data successfully.

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How to fix the request body must contain the following parameter: login_hint

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