Can't log into Azure, tenant blocked

Question

On the default tenant on my microsoft I created an app registration, when trying to fiddle with the cross-tenant settings I blocked a few things now I can't log into my account anymore (entra or azure) getting this error.

Access is blocked by the organization​

The xxx.onmicrosoft.com administrator has restricted which organizations can access their tenant. Contact the xxx.onmicrosoft.com IT department to request access.​

How on earth is this possible? This is my account and my tenant of which I am the global administrator and I lose access when I fiddle with the cross-tenant settings?

How can i get my account back, I can't even create a support ticket because I can't log in.

Answer 1

Your tenant has global admins so take-over is out of the question?
https://learn.microsoft.com/en-us/azure/active-directory/enterprise-users/domains-admin-takeover

There are no additional global admins in your organization that can sign-in and help?

You did not open the tenant via CSP that could help to regain your access?

You can't sign-in into https://entra.microsoft.com/ with any of the users that could create an azure support request?
https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request
The last resort is to contact Microsoft Support, Provide Proof of Ownership, Explain the Situation, ...
https://support.microsoft.com/en-us/topic/global-customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2

Regards