Locked out of sole Global Admin account

Question

Locked out of sole Global Admin account

Nitin Kumar 0

I am locked out of my Microsoft 365 Global Admin account. I know my password, but I cannot complete the Microsoft Authenticator verification because I lost access to my old phone. I am the only Global Admin and need urgent help regaining access to my account.

Nur Hossain 282 Reputation points

2026-09-01T15:34:03.5966667+00:00

Please contact with your Service Provider (Microsoft partner) they can help you to Reset MFA through GDAP Access. or they Can escalate it to Microsoft Data Protection Team

1 answer

Your answer

Nur Hossain 282 Reputation points

2026-09-01T15:34:03.5966667+00:00

Please contact with your Service Provider (Microsoft partner) they can help you to Reset MFA through GDAP Access. or they Can escalate it to Microsoft Data Protection Team

Answer 1

Hi Nitin,

I’m truly sorry to hear that you’re currently unable to sign in.

Since you're a sole administrator, the only way to regain access is to contact Microsoft support. In this situation, the Microsoft Data Protection team has tools and processes in place to verify identity and regain access to administrator accounts.

Please try locating the appropriate hotline for your region here: Customer service phone numbers - Microsoft Support

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

(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.)

What kind of problem are you experiencing?
Answer: Authenticator
What products do you use?
Answer: Office 365 for business
Is this for an education or company account?
Answer: For companies
Are you an administrator?
Answer: Yes
Are there any other administrators in your organization?
Answer: No. I am the only admin in my tenant
Do you need a... Service request?
Answer: Yes. I need to create a ticket. Please send me directly to the Data Protection Team.

During the phone call, you will need to provide the information associated with your subscription, such as your company name, billing details, phone number, and an alternate email address, etc. This information allows the Data Protection team to verify your identity and securely assist you in regaining access to your administrator account.

I know being locked out of the only admin account can be stressful, but contacting the Data Protection team is the correct path forward in this scenario.

I hope these steps help you create a support ticket successfully and move closer to regaining access to your administrator account. While I’m not able to intervene directly, guiding you to the right support team is the most effective help I can provide here.

Hope you're able to get this resolved soon.