How to import the Domain attribute into the FIM Portal Part 1
If you have a single domain forest then you should use a constant flow in your sync rule or advanced attribute flow. If you have a multi-domain forest, then using a constant in the advanced attribute flow won’t work. You could create multiple inbound sync rules one for each domain with scoping filters and then use a constant. However, this seems like a waste. You could also follow the guidance provided in article originated by my friend Markus Vilcinskas and maintained by the community http://social.