# Shipments

A shipment describes a structure of a multimodal logistics journey. Shipments are useful when the lifetime of an asset you are tracking spans across multiple tracker devices.

A shipment consists of segments.

Devices assigned to a shipment generate traces and events for the entire shipment. The shipmentId of a shipment can be used in similar fashion as a trackingId in HERE Tracking APIs (where applicable). For example, one can query shipment traces and events and associate aliases and metadata to a shipment.

A new shipment should be instantiated for each separate logistical journey. However, if the structure of the shipment is recurring, a shipment plan can be defined.

Shipments are managed via the shipments endpoint.

Shipments can also be created, managed and visualized via the Shipment Tracking web.