Contact Microsoft 365 business phone support immediately and request verification of whether the tenant deletion completed; if the tenant was fully deleted, it cannot be restored and a new tenant will not recover the former Teams identities or data.
Submit the recovery investigation
Because live chat is unavailable and the deleted tenant cannot access either admin center:
- Open Microsoft’s regional support directory and select the current Microsoft 365 business number for your country or region ^1^.
- State clearly:
- “The entire Microsoft Entra tenant was accidentally deleted.”
- The complete original
tenantname.onmicrosoft.com domain.
- Approximate deletion date: 28 October 2026.
- Microsoft 365 subscription, invoice, order, or agreement details.
- That Teams and both administrative portals are inaccessible.
- That you need a case opened against the affected tenant, not merely sign-in troubleshooting.
- Ask the representative to:
- Verify whether this was a completed tenant deletion, subscription deprovisioning, inactivity block, or administrator lockout.
- Escalate the case to the tenant/account-protection team if ownership verification or backend investigation is required.
- Provide the case number in writing.
- Have the registered telephone number and email account available. Microsoft’s phone process can send a verification code to contact information registered in the Microsoft 365 organization profile ^2^.
If the subscriptions were purchased entirely through a Microsoft partner or CSP, contact that partner instead; Microsoft’s documented online support route requires at least one subscription purchased directly from Microsoft ^2^.
Do not post the complete tenant domain, invoices, payment information, tenant ID, or personal contact details in this public Q&A thread.
What can be recovered
Microsoft documents that deleting an Entra organization deletes its associated resources, and deletion can be completed only after users, applications, and associated online-service subscriptions have been removed ^3^. A closely matching accepted Microsoft Q&A answer states that a tenant deleted a week earlier could not be restored ^4^.
The 30-day recovery behavior for deleted users, groups, applications, and certain policies applies to soft-deleted objects inside an existing tenant. It does not establish a recovery window for an entire deleted tenant. Hard-deleted objects cannot be restored by administrators or Microsoft ^5^.
Support should nevertheless verify the actual state before rebuilding. For example, a blocked tenant is different from a deleted tenant; an inactivity-blocked tenant may have a limited reactivation period ^6^.
If phone support cannot open the case
A closely matched Q&A escalation path is to create a separate Microsoft 365 trial tenant, sign in to its admin center, and select Help & support to open a case on behalf of the inaccessible tenant. Request transfer to the Data Protection team, and cancel the trial afterward to avoid charges ^7^.
This is a support-access workaround, not a restoration or migration mechanism. In the new admin center:
- Select Help & support.
- Enter “accidentally deleted entire Microsoft Entra tenant.”
- If self-help does not resolve it, select the Contact Support headset.
- Specify that the ticket concerns another, inaccessible tenant and include its domain and deletion date. The normal admin-center support workflow supports phone or email contact ^2^.
Create a replacement only after support confirms deletion
If Microsoft confirms permanent deletion, create a new workforce Microsoft Entra ID tenant. A replacement is a separate organization and does not inherit the old tenant’s Teams configuration, accounts, licenses, or data.
For an eligible paid Azure account:
- Azure portal → Microsoft Entra ID.
- Entra ID → Overview → Manage tenants → Create.
- Select Microsoft Entra ID.
- Enter the organization name, a currently available initial domain, and country/region.
- Select Next: Review + Create → Create ^8^.
The initial onmicrosoft.com domain cannot later be edited or deleted, so select it carefully ^9^. The creator becomes Global Administrator by default; Microsoft recommends establishing two cloud-only emergency Global Administrator accounts ^8^.
References
- [Work account](https://support.microsoft.com/support/#microsoft-365-volume-licensing-support)
- Get support for Microsoft 365 for business
- Delete a tenant in Microsoft Entra ID
- Can i recover a deleted tenant from last week? - Microsoft Q&A
- Recover from deletions
- Accidently lost access to our tenant! - Microsoft Q&A
- Locked out of Microsoft 365 Developer Program sandbox tenant - Microsoft Q&A
- Quickstart: Create a new tenant in Microsoft Entra ID
- Set up a new Microsoft Entra tenant