Activating a tenant that has been deauthenticated and is no longer available

The error AADSTS5000225 in this scenario indicates that the Microsoft Entra tenant has been blocked due to inactivity and is now inaccessible.

Key points from the tenant lifecycle behavior:

• When a tenant is marked inactive, sign-in attempts return:
  • AADSTS5000225: This tenant has been blocked due to inactivity.
• Administrators have a limited window to reactivate:
  • A tenant can be requested for reactivation only within 20 days of entering the inactive state.
  • After 20 days in this blocked state, the tenant is permanently deleted and cannot be recovered.

To proceed, depending on the timeline and role:

1. If the tenant has been inactive for less than 20 days
   • A tenant administrator must contact Microsoft support and request reactivation:
     • Use the global support phone numbers listed in the documentation.
   • Do not submit multiple support requests for the same issue; wait for the decision on the initial case.
2. If the tenant has been inactive for more than 20 days
   • The tenant is deleted and is not recoverable.
   • Review Microsoft’s data protection policies for details on data handling and retention.
3. If access to Azure is needed but the original tenant cannot be recovered
   • Sign in to the Microsoft Entra admin center and use Manage tenants to create a new tenant.
   • Use the new tenant’s domain name or tenant ID in the Azure portal URL (for example, https://portal.azure.com/<TenantId> or https://portal.azure.com/<yourTenantName>.onmicrosoft.com) to work in the new tenant.

If the tenant is still within the 20‑day reactivation window, the only supported path to “activate” it again is through a support request from an administrator; there is no self-service reactivation.

References:

• Tenant inaccessible due to inactivity
• Error message: interaction_required: AADSTS5000225: This tenant has been blocked due to inactivity - Microsoft Q&A
• 7 Day Old Azure Account: AADSTS5000225: This tenant has been blocked due to inactivity. - Microsoft Q&A
• Tenant inaccessible due to inactivity - Microsoft Q&A