I know there are questions already answered but I can't get it to work.
I want to grant an external user access to a specific project, without having to change permissions for all other projects.
I created a new group, added this user to this specific group and removed it from the "jira-users-group", and added this user to the project.
But when I log in as this user, I can't access any project.
What can I do from there?