Profile location per Tenant

Hi
I'm currently building a Windows domian which will provide services to different tenants. For easyier support and because we will have different partners with admin users, I would like to separate the FSLogix profile path per tenant. It should look like this:

😧\Profilecontainer\Tenant1\user1\user1.vhdx

D:\Profilecontainer\Tenant1\user2\user2.vhdx

D:\Profilecontainer\Tenant2\user3\user3.vhdx

On multiple places, I found a hint, that you can use any environment variable for the container location. So I made a GPO to assigne every user a environment variable based on a AD-attribute. This works fine. When the user3 is logged in, he has the %TenantID% variable set to Tenant2.

I have then configured the container location via GPO to \\server\profilecontainers$\%TenantID%.

But this doesn't work. After login, I have a new subfolder called %TenantID% with the new profile in it. So it looks like fslogix cannot resolve this self created environment variable.

Any hints, what I'm doing wrong or how to achive my goal?

Greetings,

Matt