You use the transportation unit to consolidate freight units. You can then plan the transportation unit as a unit for several transportation stages, in other words you can assign it to one or more freight orders.

Within the transportation unit type, you configure the most important settings for the transportation unit. For example, you use the transportation unit category to indicate whether you want to create the transportation unit type for a trailer, a railcar, or a container. When you then create the related business document (for example, a trailer unit), the system offers you only the relevant transportation units. For more information, see Customizing for Transportation Management under  Freight Order Management Transportation Unit Define Transportation Unit Types .