[ARM] Cross Forest

Sup everybody,

What exactly needs to be done when a two forest trust exists?

What I have done so far:

Checked Licence: It display domains with a wildcard: *  Guess this is correct.

Installed a collector on a server on the other domain. ARM successfully connects.

Now, the trusted domain is not showing up when trying to add the Doman for ressource configuration.

Is there anything else I'm missing?

Thanks