Do the two domains trust each other? Then you should be able to just create another pool in the domain A catalog and only entitle users from domain B to use it.
Thanks a bunch for jumping in, how do I go and add the domain B so it can be seem when adding entitlement
Thanks a bunchhhhhhh
You need to have a trust set up between domains. Do the two domains trust each other? In the Horizon Administrator dashboard, do you see both domains?
Raul posted some very good links for multi domain solutions here - Horizon View Multi-Domain solution
If you have the trust set up, then when you go to entitle users you select the domain and add the users/groups.
The domains view should be populated automatically if trusts exist. Are your connection servers joined to domain A or B? You should at least be seeing one of those.
Please review the documentation and ensure you are meeting the Active Directory requirements.
Did you try configuring any domain filtering that might have removed them?