Mark related order as completed after ticket closure

Closed support tickets don't update orders, causing fulfillment confusion. Mark related orders completed automatically so your fulfillment team sees correct status same day.

Overview

When a support ticket related to an order is closed, the order record should reflect that change immediately; otherwise fulfillment spends time reconciling status. This flow links ticket closures to order completion so fulfillment staff and owners see accurate order status same day, reducing manual updates and missed handoffs.