Creation of Forwarding Order Items or Forwarding Quotation Items 
When you create a forwarding order or a forwarding quotation in SAP Transportation Management (SAP TM), you can enter the items of this business document in an item hierarchy. The hierarchy can consist of container, package, and product levels.
The planning always occurs on the highest level, for example, on the level of the container or package. Information about the packages in a container or the products contained in a package is additional information for the planner, and does not play an essential role in the planning by the system. This information does, however, have an impact on a potential transportation charge calculation.
If you want to provide information about containers and packages when creating the order items (such as container type), you have defined equipment types and package types in Customizing. This data serves as additional information for the planner and is not relevant for the planning by the system. For more information, see Customizing for Transportation Management under the following Customizing activities:
If desired, you have assigned a base unit of measure for weight, volume, and piece in Customizing for the business document you created for the forwarding order or forwarding quotation. This system uses this unit of measure if you do not specify a unit of measure or when the system calculates the total quantity of planning-relevant order items. For more information, see Customizing for Transportation Management under the following Customizing activities:
You can create items in the forwarding order and forwarding quotation business documents as follows:
You can create the items individually or as hierarchy on container, package, and product levels. The sequence of the levels is predefined, in other words, you cannot define a product as highest level with a lower-level package.
If you have made the corresponding settings in Customizing, you can assign equipment types (for example, freezer containers and 20-foot containers) as well as package types (for example, pallets) to the items.
The quantities and weights of the planning-relevant items (in other words, the items on the highest level) are totaled by the system and displayed in the base unit of measure in the header data of the document. However, the totaling is only possible if the units of the items can be converted to the desired unit. If this is not the case, the total stays empty. All other items are additional information and can be included on the print documents as well.
The quantities and weights of the lower-level items in an item hierarchy are aggregated by the system to the next-higher level of the hierarchy. In a three-level hierarchy consisting of container, package, and product levels, the system aggregates the data as follows:
If you specify the gross weight on the product level, the system aggregates the data to the net weight of the next-higher levels, for example of the package level. The net weight is no longer changeable.
If you specify on package level the weight of the packaging (tare weight) in addition to the net weight, the system adds the data to the gross weight of the package.
The gross weight of the package is aggreated by the system to the net weight (loading capacity) of the container and is then no longer changeable. If you additionally specify the tare weight of the container, the system totals the net weight (loading capacity) and the tare weight to the gross weight (total weight) of the container. The total weight is likewise no longer changeable. It is also displayed in the document header.
If you do not specify a unit of measure, the system determines the base unit of measure from the document type (if defined in Customizing).
You can copy existing items and move items via drag and drop to another position in the item hierarchy.