Currently all users on our Jira board have the role 'Users' (A project role that represents users in a project', to me this seems the role with the least amount of authorisations.
However these users are still able to add new issues to a running sprint. How do I prevent most of my users to add issues to a sprint? Off course these users should be able to add new issues to the backlog and be able to work on existing issues on the current sprint (have edit rights on the issue and move it around on the kanban board)
Which role(s) is/are required for these users?
Which role should I assign to the users who should be able to add issues to a sprint?