Error Code 5000225 Message This tenant has been blocked due to inactivity. To learn more about tenant lifecycle policies, see https://aka.ms/TenantLifecycle

Hello @Vitalik

Thank you for reaching out to Microsoft Q&A.

The error message you encountered indicates that your tenant has been inactive for over 200 days past the billing cycle, triggering Microsoft’s effort to remove inactive tenants. When a tenant remains inactive for this period, the OMS commerce system imposes a login block (AADSTS5000225). Twenty days after the login block is applied, the tenant is permanently deleted.

When your email id is associated with some other tenant say for example your previous Organization and such tenant is blocked then when you're trying to login may be it gets pointed to the blocked one.

To resolve your issue please check if your email di associated with any other tenants. Also you can try login in using below URL pointing to your recent tenant from which you received invitation.

https://portal.azure.com/{Domain Name or tenant id}

Please let us know if your need further assistance.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Thanks,

Aditya