i am admin and can nit log into admin account because i deleted the Authenticatior app from my phone

Hi @Nancy Fernandes,

May I ask whether you are the only Global Administrator in the tenant, or are there other administrators who still have access?

If you are the only administrator and have lost access because the Microsoft Authenticator app was removed from your phone, the best next step is to contact Microsoft Support by phone so the frontline support team can create a case and route it to the Data Protection team.

In this situation, the Microsoft Data Protection team has tools and processes in place to verify identity and regain access to administrator accounts.   

You can find the correct phone number for your region here: Contact Microsoft customer 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.)     

In some regions, the initial interaction may be automated, so here’s a general idea of how the conversation might go to help you prepare:       

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 direct to the Data Protection Teams.       

During the phone call, you will need to provide the information you have received through your subscription, such as: Your company name, billing information, phone number, alternate email address, etc. Therefore, our privacy team can help you reset your multi-factor authentication, and after the reset, you can add your account back to your authenticator app on your phone and set it up from scratch or choose a different authentication method to log in to your account.  

This is the official process typically followed when the only administrator in a tenant needs assistance regaining access to their account. I hope you can give it a try.

If there are any updates or if anything in my response is unclear, please feel free to reply and share more details.

Thank you for taking the time to read my response, and I sincerely hope you're able to regain access to your account as quickly as possible.