Jun 22 2023 10:04 AM - edited Jun 23 2023 03:58 PM
PSA: Sign into all your Microsoft accounts now and enable all authentication methods, app, text, phone, and alternate email. Don't let this happen to you:
I am the only administrator and I cannot sign into office.com.
When I sign in, it asks me to enter a number in my Microsoft Authenticator but I do not have Microsoft Authenticator. When I select "sign in another way" it asks me again to use my Authenticator.
I contacted Microsoft and they told me I could restore access at aka.ms/prosupport. However, I cannot use the website because it requires me to sign in.
I opened a ticket using another tenant and they told me to call 800-642-7676. I have been on hold for 3.5 hours now and I do not expect they will take my call or provide any useful support. If they do, I will post back to share what happened.
Does anyone here know another way to restore access to 365 that doesn't require access to 365?
Thank you in advance!
Update: After 5.25 hours on hold, a voice told me, "All support agents are busy. Please try your call at another time. Goodbye." and hung up. The phone number was a dead end. Later, I called other Microsoft numbers and they all led to the same queue, voice prompts, and hold music. I waited at least 1-hour on each attempt for someone to help me and no one did.
Jun 22 2023 05:48 PM
Seems the only way is to call Microsoft Support since you are the only admin under your tenant and not able to login admin portal to raise a ticket:
Jun 22 2023 06:06 PM - edited Jun 22 2023 06:06 PM
Thanks for the suggestion but, as I just added above, calling Microsoft is a dead end. I've tried more numbers and they all lead to the same queue with the same prompts, hold music. I must have heard "For faster support please sign into your admin console..." a thousand times now. It's like a knife turning in my gut.
Jun 22 2023 09:48 PM
Jun 23 2023 03:53 PM - edited Jun 23 2023 03:54 PM
Thank you for your suggestion. It's still a problem. The prompt to enroll in MFA only appears until you enroll. After you enroll, it is gone. The only solution is to sign into AzureAD/Entra and select "re-register multifactor authentication" for the user. This will restore the MFA prompt and provide them with the code needed to add it to the authenticator.