Shipping and Receiving with Transportation Integration 
Shipping and Receiving offers features to integrate Extended Warehouse Management (EWM) with the Transportation (LE-TRA) component of SAP ERP. With this integration, you can control and monitor the entire transportation process from the planning stage to the goods receipt at the customer location or your own plant.
To use transportation integration, you must activate the business function EWM, Integration with Transportation (SCM_EWM_TRANS_INT_1).
The Shipping and Receiving part of EWM offers you the following features:
Staging area and door determination contains the following transportation-relevant attributes:
For inbound processing: carrier, means of transport, and handling unit (HU) type of packaging material
For outbound processing: carrier, ship-to party, means of transport, and HU type of packaging material
The system displays the following data:
Transportation planning type, for example, for transportation units (TUs), vehicles, and deliveries, indicating the system that is responsible for the transportation planning
Corresponding ERP shipment number, for example, for TUs, vehicles, and deliveries
Origin of route for TUs
Based on the planning results of a shipment (assigned deliveries and HUs) received from SAP ERP through the SHPMNT05 IDoc, the system can automatically create TU activities and vehicle activities and assign deliveries to them if warehouse execution has not yet started. Based on the assigned HU data from SAP ERP, the system creates TU activities and vehicle activities in the following way:
If you have one HU assigned to the shipment and you have selected the Optional checkbox in Link Between Packaging Material (TU) and Means of Transport (transaction /SCWM/PM_MTR), the system creates only a TU activity.
If you have one HU assigned to the shipment and you have not selected the Optional checkbox in Link Between Packaging Material (TU) and Means of Transport (transaction /SCWM/PM_MTR), the system creates a TU activity and a vehicle activity.
If you have more than one HU on the same level, the system uses the first HU to create a vehicle activity and it uses the remaining HUs to create TU activities.
If you have nested HUs, the system uses the highest-level HU to create a vehicle activity, and it uses the lower-level HUs to create TU activities.
The system transfers the HU information from SAP ERP to EWM in the following way:
HU number is transferred as external TU or vehicle activity number
Packaging material is transferred as packaging material
Packaging material type is transferred as standard code of means of transport
The system notifies SAP ERP about the execution of the plan in EWM by sending the SHPMNT05 IDoc to SAP ERP after the system has set the Goods Issue Posted status of the TU.
When you delete a TU in EWM that has been created as a replica of an ERP shipment, the system deletes the corresponding shipment in SAP ERP by sending the TPSSHT01 IDoc.
In warehouse outbound processing with transportation planning in EWM, the creation of the SHPMNT05 IDoc is automatically triggered by the Post Processing Framework (PPF) action /SCWM/SR_SEND_SHPMNT. If you repeat this PPF action manually, the system creates a new IDoc, which leads to the creation of a new shipment in SAP ERP.