Allows transition only if the linked issues, sub-tasks, epic's children, or parent issue are in the required state.
Use cases
Prevent closing an issue if all linked "is blocked by" issues are not closed
Set Relation to Linked issues
In Link types: select is blocked by
In Status category: select Done
(Optional) In Status: select explicitly which statuses are allowed, e.g. Closed
(Optional) Check: At least one linked issue, as defined above, must exist if specified links are required.
Allow transition only if at least one sub-task is defined and all the sub-tasks are done
Set Relation to Sub-tasks
In Status category: select Done
Check: At least one sub-task, as defined above, must exist
Prevent transition of an epic if there are open issues underneath it
In Status category: select Done
Allow transition of an epic only if all children of type Bug are in the Investigated status
In Issue types: select Bug
In Statuses: select Investigated
Allow transition only if an epic has at least one child
Check: At least one child issue, as defined above, must exist
Allow story in an epic transition only if the epic is in progress
In Status category: select In progress