Hi,
We have a requirement that we need to add a condition to parent ticket that when their child tasks are completed. for example we have a task and under task we have multiple subtasks. we have communicated to users that close parent only when you have closed all subtasks. But still developers are closing parent task issues without considering subtasks status. now i want to add a condition there that when assignee is closing a parent task if subtasks are not closed he should get a error message or he should not able to close the parent task.
FYI : we are using team Managed Project.