You can remove the relationship between a work order and its related work orders or tickets.
You can remove the relationship between records only if the ticket or the work order has a type of RELATED.
To delete relationships with work orders that have other relationship types, such as FOLLOWUP or ORIGINATOR, you must delete the work order.
To delete relationships with tickets that have other relationship types, you must go to the ticket applications.
on the Related Records tab in the Work Order Tracking application.