Thank you for posting this in Microsoft Q&A.
As I understand you are unable to access any of the Azure resources due to MFA prompt by Entra ID.
There are 2 scenarios to resolve this,
- If you have another admin in your Azure tenant
- If you are the only Admin in your tenant and have no access to Azure portal.
If you have another admin in your Azure tenant
If you have another Global admin for your tenant, then you can ask them to allow re-registering of MFA for your account. You can ask them to perform below steps,
• Admin has to login to Azure portal and access Azure active directory.
• Once done they have to go to users blade on the left.
• Click on Authentication methods and click on “Require re-register multifactor authentication”.
• Now when you try to login to Azure services it will prompt you to register for MFA again.
If you are the only Admin in your tenant and have no access to Azure portal
If you are the only global admin on the account and are blocked entirely, you can reach out to our support team. You can look into below article to get support numbers depending on your country.
or creating a ticket through a different account: https://video2.skills-academy.com/en-us/microsoft-365/admin/get-help-support?view=o365-worldwide#phone-support
Create a ticket with Microsoft support team. Give them the tenant ID which is locked out in your description. Tell them that no admin account has access anymore and your partners also have no access anymore.
Once you create a ticket with support team you will have to work with our data protection team. You will have to first prove your identity against your tenant for security purpose. Post that this team will help you with help you in getting access to your tenant or unlock your account depending on your scenario.
Also, for the future, you can create an emergency access account (break glass) in Azure AD. This account will help prevent being accidentally locked out of your Azure Active Directory (Azure AD) organization because you can't sign in for any reason.
https://docs.microsoft.com/en-us/azure/active-directory/roles/security-emergency-access
Let me know if you have any further questions.
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