How to leave my old Azure AD tenant

Today I had a little cleanup in my Azure service. While removing old databases, devices or other types of resources was not a major problem, cleaning up the list of available tenants in Azure AD turned out to be not so easy.

In particular, one old entry proved problematic:

After selecting Leave tenant option and logging into my microsoft account, I always got the following error message:

The error message is in polish, but the translation is:

You can’t sign in here with a personal account. Use your work or school account instead.

So how can I leave this old b2c tenant?

This tenant is several years old, I do not use it, and I do not have any work or school account connected with it.

The idea is to log into https://myaccount.microsoft.com/ and check if there is an option to leave the tenant. Unfortunately, you can’t do it directly with a private account, because:

I think you alrready know this error message 😉

What’s the trick

The solution for this problem is to log in into https://myaccount.microsoft.com/ providing tenant id as a parameter.
You can find your tenant id in Azure Portal Active Direcory Manage Tenants pane under Organization ID name:

When you know your tenant id, provide myaccount link in following format:

https://myaccount.microsoft.com?tenantId=your_tenant_id

After logging in, navigate into Organizations pane, find the tenant and choose option Leave:

Summary

Sometimes getting things done in Azure is not as easy as it seems. I leave the trick on the blog, so that you can save your time and not break the topic again. Wouldn’t be useful 😛