When the last subtask is closed, the parent case should also be closed.

[Juergen Remmel]

Jira is hosted by our own, no cloud version (we use the latest version of Jira).

I want to create the workflow of a project so that when the last subtask of an issue is closed, the parent task is closed as well. I want to do this without a costly addon. What options do I have? Unfortunately I can't get along with the instructions I found so far.

[Andy Zhou]

In general, if you have Scriptrunner (for on-prem instance), you could add a post function to the subtask's transition (say Done transition) with a Custom script post-function (Scriptrunner). The simplest logic in the script would:

• Go to the parent issue
• Check if all the other subtasks (of the parent issue) are already in the same transitioned status (say Done status)
• If yes, then transition the parent issue to the desired status
• If not, do nothing

Hope this helps.