how to forbid conversion from task to subtask?

Question

I need to forbid creation of new subtasks, yet to preserve current subtasks until they finish their lifecycle. So I can't just change issue type scheme. I managed to forbid creation with workflow validator which never succeed. But I can't find how to forbid conversion from task to subtask. Any idea? tnx.

JamieA · Accepted Answer

If you want to do this for your entire jira instance, the easiest way is just to disable the plugin module that provides that link.

Go to Plugins -> Issue Operations Plugin, find the module "View Issue Ops Bar Convert to Sub-Task Link", then disable that module alone.