Unable to add Guest-user REMOVED PII

Question

REMOVED PII

Try to add Guest-user account. Redirect to Entra. After a few second of loading the Page Sign-in failed is shown.

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The same problem is with adding any other type of user.

I do not have a problem to add guest-users and other on my mobile (with the same account).

Answer 1

Please understand that our forum is a public platform, and we will modify your question to cover your organization domain name in the description. Please notice to hide these personal or organization information next time you post error or some information to protect personal data. 

Hello @Maciej Śmieszek,   

Thank you for reaching out to the Microsoft Q&A forum! 

Based on your situation, it seems the issue might be related to the browser. So, before I guide your reach out to higher technical, you can try the following steps:  

• You can clear your browser’s cache and cookies; here is article for Edge: Clear browsing history - Microsoft Support  
• After that, you can try again using Incognito/Private mode to see if the issue persists.  

Additionally, you also try using a different browser to check if the issue persists. 

If the problem still occurs after these steps, I believe it may be related to a backend issue. Therefore, to assist you further, I will guide you on how to reach out to our higher-level technical team for deeper investigation. 

To help me better understand the issue, please provide me more detail: 

1.Could you please provide a screenshot of the error message you see when the sign-in fails? 

Note: I will help you blur or hide any personal information if needed. 

2.Is this a work account managed by your organization? 

Please understand that our initial response may not always resolve the issue immediately. However, with your help and more detailed information, we can work together to identify the root cause and find a solution.     

Looking forward to hearing from you. 

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Answer 2

Unfortunately, deleting history and cookies does not help.

I am using Firefox with different contexts. I do not have a problem when i use my mobile or log in via Chrome.

My account is the company one, but I am administrator.

I see first error notification on administration page:

Please find below signed-in failed page:

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Answer 3

Hello @Maciej Śmieszek,   

Thank you for responding.  

I’ve researched this error code and found a Q&A thread related to the same issue. A Microsoft moderator suggested verifying the Redirect URI registration in the Microsoft Entra admin center.  

 

The thread link: Unable to Access Azure Portal from my Microsoft Account - Microsoft Q&A 

You can try this approach, as the error seems to be linked to Azure configuration. I hope you understand that this issue goes beyond the standard support scope I have access to, so I’m unable to test it in your environment. 

If the above step does not work, I believe it’s time for our higher-level technical team to step in. You can raise a support ticket for further assistance. 

To create a Support ticket, you can go to: Microsoft 365 admin center           

• Please follow this article: Get support - Microsoft 365 admin | Microsoft Learn           
• On right bottom corner click on "Help & support"              

 

 

When the ticket is opened, a support engineer can start a remote session to investigate the issue, review the back-end settings, and optionally run a sync tool to resolve the issue.      

I truly hope you’ll be assisted soon by our dedicated technical team.       

Looking forward to hearing from you! 

Answer 4

Hi, Unfortunately it does not help. Please support mi with how to get ticket

Answer 5

Hello @Maciej Śmieszek,   

I mentioned the steps in my previous response, but I’ll rewrite them here for clarity: 

• To create a Support ticket, you can go to Microsoft 365 admin center 
• From there, you can create a support ticket by clicking on Support=> Help & Support. 

For more information, you can infer this article: Get support - Microsoft 365 admin | Microsoft Learn   

Finally, if you’ve already submitted a ticket, please share the ticket ID with me so I can check its status and keep you updated.   

Waiting for your reply.