Personal Azure tenant sole Global Administrator lockout

Hi @Yun Li

Unfortunately, MFA registrations and tenant access cannot be reset through the community forum. In this situation, you will need to contact Microsoft Support by phone and request assistance with a sole Global Administrator lockout. Ask the representative to open a Tenant Recovery or Data Protection case. The appropriate team can verify your ownership of the tenant and determine whether access can be restored. 

Please note that I am just a fellow user contributing to this community forum and community members do not have access to your tenant or the ability to escalate the case to the Microsoft Data Protection Team on your behalf.  

You can find the appropriate customer service phone numbers at this link: Customer service phone numbers. 

(Choose Work account scroll down to Technical support phone numbers and find the Phone number of your country) 

Please remember to provide them with your account details and explain the situation. Be ready to provide:      

• The company name used during subscription     
• Billing email address (even if it’s a personal Microsoft account)     
• Payment method details (last 4 digits of the card, billing address)     
• Any subscription ID or invoice numbers from billing email     

When you call the support number, you may hear an introduction of about 30 seconds such as "you can visit the link...". You can ignore this introduction and wait until you are presented with the options. Then press "1" as a business email user, and again "1" for technical help. 

To make the process smoother, here’s an example of how to respond when speaking to the automated system (IVR):      

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: education or company account?      

You: For companies      

IVR: Are you an administrator?      

You: Yes.      

IVR: Do you have the other administrator in your organization?      

You: No.      

IVR: Do you need a... Service request?      

You: Yes      

These prompts help direct your call to the right support team more quickly, especially when dealing with account lockouts and authentication issues. 

When contacting Support, you can explain: 

I lost the phone that contained my Microsoft Authenticator registration. I am the only Global Administrator of my personal Azure tenant, and I cannot complete MFA to access the Azure portal. There are no other administrators and no alternative authentication methods available. Because I cannot sign in, I am also unable to create an Azure support request. I need a Tenant Recovery or Data Protection case opened so that tenant ownership can be verified and my administrator access can be restored.

You may need to try calling two or three times before you are able to reach a support agent. Please also be aware that the support team may be experiencing a high volume of requests, so there could be a delay before they contact you. The response time may vary and cannot be guaranteed.

I hope the information provided helps point you in the right direction. Although I’m unable to take direct action, I hope the steps and recommendations above will help you move forward with the recovery process.