Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Microsoft Support must open a Data Protection tenant-recovery case and verify ownership; Microsoft Q&A moderators cannot reset MFA, access the tenant, or arrange recovery through private messages.
Open the recovery case without using the failed Bangladesh phone route
- Open the official Contact Microsoft Support flow and select support for a work/business account: ^1^
- Describe the issue using these terms:
- Tenant lockout
- No accessible Global Administrator
- All administrator accounts blocked by unavailable MFA
- Request a Data Protection / tenant recovery case
- Existing Azure tenant and subscription must be recovered
- Provide a reachable alternate email address and telephone number. Do not use an address inside the locked tenant as the only contact method.
- State that the published Bangladesh number is rejected by the Robi network and request online or email-based handling.
Microsoft’s Azure sign-in guidance specifically directs customers who cannot sign in to create a support request through the external support route rather than the Azure portal.^2^
If the online flow still requires an inaccessible tenant sign-in
Create a temporary Microsoft 365 trial tenant solely to submit the support request. This does not replace, migrate, or abandon the original tenant; it is only a way to reach support.
- Create the temporary trial tenant with an alternate contact address.
- Sign in to the Microsoft 365 admin center.
- Go to Support → Help & Support.
- If Support Assistant prevents case creation, turn it off, enter Support, and select Contact Support.
- In the request, identify the locked tenant and ask that the case be routed to the Data Protection team.
- Include this summary:
Existing Azure/Microsoft Entra tenant lockout. No Global Administrator can complete MFA, and no alternate authentication method is available. Please open a Data Protection tenant-recovery case for ownership verification and MFA re-registration. The temporary tenant is only being used to contact support.
- Cancel the trial after recovery to avoid charges.
This workaround has been recommended for the same sole-Global-Administrator, lost-Authenticator scenario when normal support channels are inaccessible.^3^ A closely matched case also confirms that the temporary tenant’s admin-center support request should explicitly request Data Protection assistance for the affected tenant.^4^
If the Azure subscription was purchased through a Cloud Solution Provider or reseller, ask that provider to open the service request on the organization’s behalf.^3^
Prepare for ownership verification
Have the following ready, but submit it only through the official support case:
- Locked tenant’s tenant ID and initial
onmicrosoft.comdomain - Affected administrator UPN
- Azure subscription ID
- Organization name and proof of authority
- Billing records, invoices, payment details, or subscription information
- Domain-ownership evidence, if applicable
- Historical contact details associated with the subscription
- A reachable alternate email address and phone number
Matched tenant-lockout cases are transferred to Data Protection, which then contacts the requester by email or phone to verify ownership and restore access.^5^
Do not post tenant IDs, subscription IDs, administrator addresses, invoices, or ownership documents publicly. Edit the existing question to remove the tenant-specific identifiers already included; public Q&A is not a secure recovery channel.
After access is restored
Create at least two cloud-only emergency-access accounts with permanent Global Administrator assignments, store their credentials securely, and monitor their use. Microsoft recommends these accounts specifically to prevent complete lockout when normal administrators cannot complete MFA.^6^
References
- Contact - Microsoft Support
- Troubleshoot Azure subscription sign-in issues
- Sole Global Admin Tenant Lockout - Lost MFA - Need Data Protection Escalation - Microsoft Q&A
- Sole Global Administrator locked out – Authenticator MFA loop / tenant recovery required - Microsoft Q&A
- Tenant lockout — I am the only Global Admin and lost Microsoft Authenticator. - Microsoft Q&A
- Manage emergency access admin accounts - Microsoft Entra ID