Dear,

Sometimes I've partners or collaborators who aren't in my business but work in one common project I manage thanks to Tuleap in my side. I know they don't want change their organizations or practices to use Tuleap. At the same time, I want to assign task or other artifact of trackers to them ; it's the mean for me to animate the best I can the project with them and I can follow theirs on-going tasks.

In this case, two options in Tuleap would be great :
1/ create in the fly new user when I create a task in a project (in my mind, I create a task and I assign ressources, and if they don't exist, I create them)
2/ create a hybrid (or had oc) user which represents bodies involved in the project but not active in Tuleap for many reasons (for example an intern). The idea is to assign tasks to the contact, send email to keep the project clear to the manager.