Here is the scenario:
I have 2 domains. Domain A is corporate, Domain B is local to our site.
Each domain has its own SharePoint that uses its respective AD and User Profile Syncs wonderfully.
The powers that be are forging ahead with a "single logon" project where users use the Domain A login ID and can still use both Sharepoints without issue or barrriers.
Accessing Domain B sites as a Domain A user is fine, it resolves users & AD groups in Domain A fine. However... I cannot seem to configure a User Profile Sync Connection in Domain B to sync users from Domain A.
We have a 1 way trust in place.
I'm sure I need to do this as some workflows encounter issues depending on which domain user triggered it. Domain A users are also getting restricted search results on Domain B crawled file shares (none!)
Hope this made sense!