I tried to add a new user from a different forest as a Deployment Administrator (through the Deployment Manager) and it did not work. It did not give an error, it just accepted the input and acted like it worked fine. It just didn't
add them to the list. I was successfully able to add a user from the same domain.
I have gone through a blog where some workaround provided like establishing two-way trust to to add deployment administrators from the other forest. But this workaround is not accepted in my project.
Is there any workaround?