Subtask Inherit Assignee
This workflow automatically sets the assignee of a subtask to the user who is assigned to work on the parent task.
This workflow helps you manage the assignment of tasks and subtasks.
This workflow includes two rules.
Assign subtask to assignee of parent issue
This rule checks a subtask when it is linked to a parent task. If the subtask is not assigned, the issue is assigned to the assignee of the parent task.
Update assignee for subtask when parent issue is reassigned
The next rule checks for subtasks when an issue is assigned to another user.