The error interaction_required: AADSTS5000225: This tenant has been blocked due to inactivity indicates that the Microsoft Entra tenant is in an inactive, blocked state and sign-in to Azure (and other services using that tenant) is currently prevented.

Key points from the tenant lifecycle behavior:

• Tenants that are inactive past a certain period are blocked from sign-in with error AADSTS5000225.
• Once blocked, administrators have up to 20 days to request reactivation.
• If the tenant remains in this blocked state for more than 20 days, it is permanently deleted and cannot be recovered.

To proceed, depending on role and timing:

1. If administrator access to this tenant exists and the block started less than 20 days ago:
   • Contact Microsoft support to request tenant reactivation using the global support phone numbers: see global support phone numbers in the “Tenant inaccessible due to inactivity” guidance.
   • Do not submit multiple support requests for the same tenant while a case is in progress.
2. If the tenant has been blocked for more than 20 days:
   • The tenant is deleted and cannot be restored.
   • A new tenant must be created to continue using Azure/Entra services.
3. If sign-in is needed only to create or use another tenant:
   • Sign in to the Microsoft Entra admin center at https://entra.microsoft.com/ (if the account itself is valid) and use Entra ID → Overview → Manage tenants to create a new tenant.
   • Then access Azure with the new tenant context (for example, by specifying the new tenant’s domain or ID in the Azure portal URL as shown in the referenced Q&A).

If the account was created as a free Azure subscription and is immediately blocked for inactivity, the same tenant-inactivity rules apply: the only supported recovery is via Microsoft support within the allowed reactivation window; otherwise, a new tenant/subscription is required.

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