How to limit developers to only create sub-task issue type?

[Mukesh Bathija]

Hi all, I have defined various issue types. However, I want the developer groups to only create sub-tasks only? Please help how I can achieve this?

[Nic Brough [Adaptavist]]

Natively, you can't.  "Create issue" allows a user to create any type of issue in a project.

There are some tricks, including

• Javascript (clunky, hard to write, hard to maintain, and a doddle to get past)
• Injected javascript by add-ons, such as the Behaviours module in ScriptRunner.  (Yes, I work for Adaptavist, but that's the only one I actually know of that does it.  There may be others.  You can still bypass it, but it's easier to handle)
• Don't stop them starting the creation, but block it when they click create after entering the data.  This is usually done by making them fail a "validator", although in some cases you can do it by making a field mandatory for the issue type and then not letting those users have it on screen.