Error Code: 399287 Request Id: [Moderator note: personal info removed] Correlation Id: [Moderator note: personal info removed] Timestamp: [Moderator note: personal info removed]

Question

Dear Microsoft Support Team,

I am writing to request assistance with resetting the Multi-Factor Authentication (MFA) settings on my Microsoft account, as I am currently unable to access the account due to MFA verification issues.

Affected Account Details:

• Blocked Account (User Principal Name): [Moderator note: personal info removed]

Error Code: 399287

Request ID: [Moderator note: personal info removed]

Correlation ID: [Moderator note: personal info removed]

Timestamp: [Moderator note: personal info removed]

Issue Description: I am unable to complete the MFA verification because the registered phone number is no longer working. Additionally, there is no alternative MFA method available for verification, and no email-based MFA option is presented during sign-in.

I am currently sending this request from my secondary/personal email address, which is associated with the account. I can receive verification codes on this email if Microsoft enables it as an authentication method.

Request: Kindly assist in resetting or disabling the existing MFA configuration on the affected account so that I can regain access and reconfigure MFA with valid authentication methods.

I am willing to provide any additional information required to verify my identity and ownership of the account.

Thank you for your assistance.

Kind regards, [Moderator note: personal info removed]

Secondary Email: [Moderator note: personal info removed]
Affected Account: [Moderator note: personal info removed]

Answer 1

Dear @Emmanuel Oshomeghie Oyase,    

Thank you for posting your question in the Microsoft Q&A forum, and I’m sorry to hear you're having trouble accessing your work account due to the Microsoft Authenticator app.  

Since you did not mention whether you are an end user or an administrator, please refer to the scenario that matches your issue:  

Scenario 1: You are an end user, or your organization has another IT administrator  

If you are an end user, please contact your organization’s IT administrator and ask for an MFA reset. This will allow you to set up your authentication methods again on your device such as email, SMS, phone calls, or the Microsoft Authenticator app.

This article provides further guidance on the topic: Manage authentication methods for Microsoft Entra multifactor authentication  

Scenario 2: You are the only IT administrator in your organization  

If you are the sole global administrator and cannot access your account, you will need assistance from Microsoft’s Data Protection team. They will verify domain ownership and other required information in order to restore your access.  

You can proceed with one of these approaches:  

Option 1: Contact Microsoft Data Protection Support by Phone (Primary Method)    

To regain access to your admin account as you can't access the Admin Portal, you can try reaching out to our Global Customer Service phone to raise a request for resetting your authentication method here: Customer service phone numbers - Microsoft Support. During the call, request to speak to an agent, and share with them every detail related to your query and also mention that you are the only admin who lost access to your account. This should allow you to contact the appropriate team so you can solve this incident as soon as possible.   

Here are some tips and an example of a prompt to help you navigate the IVR more effectively:         

In some countries, it is an automated conversation like:   

IVR: What kind of problem are you concerned about?         

You: Authenticator.         

IVR: What kind of product do you use?         

You: Office 365 for business.         

IVR confirmation: education or company account?         

You: For companies         

IVR: Are you an administrator?         

You: Yes.         

IVR: Do you have another administrator in your organization?         

You: No.         

Option 2: Create a Temporary Account (Trial Tenant) to Submit a Support Ticket (Alternative Method)   

If you still cannot reach to a live agent, there is still a workaround, you might consider registering for a new tenant by signing up for a trial subscription via this link Microsoft 365 Business Plans and Pricing | Microsoft 365. This would allow you to create a new tenant following the prompts provided. Once set up, you can access the admin console of the new tenant and submit a support ticket requesting to speak with the Data Protection team on behalf of your previous tenant.  

Follow the guided setup process to create a new account for a new tenant.    

Once your tenant is created, you should be able to access the support portal and submit your ticket referencing your locked account without further issues  

In your ticket description, you'll need to clearly explain that you're trying to regain access to your previous Microsoft 365 tenant and need help from the Data Protection team. Here's a message you can use or adapt:    

"Hello, I’m currently unable to access my previous Microsoft 365 tenant due to losing MFA access, which prevents me from receiving verification codes. I’m the global admin, but I’m locked out and unable to generate a QR code or bypass MFA.    

I created this new tenant solely to request assistance. I kindly ask to be connected with the Data Protection team to verify my identity and help me recover access to the original tenant.  

This is urgent, as I rely on Microsoft 365 for my work and have been unable to operate for several days. I’m available to provide any documentation or verification needed to support the recovery process."    

Ticket Support: In the Microsoft 365 Admin Center > Support > Help & Support. You can raise support ticket at https://admin.microsoft.com/#/support/requests      

• Please remember to cancel the trial subscription after your issue is resolved, as this will help you avoid any accidental billing. You may prefer the following resource for detailed instructions: Cancel your Microsoft business subscription in the Microsoft 365 admin center | Microsoft Learn  

Please note that forum moderators do not have access to user account settings and cannot assist with logging in, resetting passwords, or changing access rights. While we do not have access to internal systems or administrative tools required to resolve account-specific or backend-related issues, but we’ll continue doing our best to support you within the scope of our responsibilities.     

I hope this helps you regain access to your account quickly. I'm glad to assist and truly hope the information provided has been useful. Please feel free to reach out anytime if you are still unable to reach a live agent after following the steps above.    

Thank you for your understanding and patience.

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