Data Management Preferences, accessible from Setup > Preferences > Data Management, allow you to set options for saving and deleting shipment data.
Purge shipments after (# of months)
Select the number of months after which to delete shipments from the StarShip database. The default setting is 12 months. You can also choose not to purge shipments by selecting “Never.”
Purge shipment documents after (# of months)
Select the number of months after which to delete carrier documents, such as FedEx labels and shipping documents, YRC BOL and labels, etc. This includes any printed label that is not created by StarShip.
Keep fully backordered items in the shipment
When checked, Starship will not remove line items with a ship quantity of ‘0″ when saving or processing shipments. The back-ordered items will appear in the shipment. This setting is unchecked by default. This setting is useful if you want to print back-ordered items and their quantities on the StarShip Packing List when the shipped quantity is 0.