Reminders for open requirements and tasks can run in one of three modes: sent automatically on a schedule, drafted for an organizer to approve first, or fully manual. This is set in Settings and applies across the organization.
Reminder rules match on how important a requirement is and how close its deadline is. A reply to a reminder is read and, for clearly low-risk, high-confidence updates, applied automatically — anything less certain is queued for an organizer to review before it changes the plan.