Sounds simple but.....
- When issue type ABC is created manually THEN
- Create issue type DEF and make its start date 21 days before the parent issue's due date AND make its due date 14 days before the parent issue's due date
They have a bunch of other issues to be auto-created, but the conditions are similar so no need to list them all.
CALLOUT! This is in a team-managed project, but I think the same logic may apply to company-managed. I have no experience in team-managed projects.
I am not sure how to set the date logic.
Thanks in advance!