Unable to track the Cancelled (Backordered) Packing Slip (PS) Numbers

Summary:

When Pick release action is performed in manage shipment lines work area, "Packing Slip (PS) number" is generated, and order line status is changed to Picked. When Packing slip is cancelled from Manage shipment lines work area using "Backordered" Action, Order line status changed from Picked to Backordered status. When packing slip (PS) is cancelled the PS number vanishes from the Manage shipment line work area.

We want to know at which location this cancelled PS numbers are tracked or stored in the oracle fusion..?

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