Integration of ERP Orders and Deliveries in Transp. Planning 
The following graphic shows the standard process for integrating orders and deliveries from SAP ERP with transportation planning in SAP Transportation Management (SAP TM), and is followed by a description of the process. Variants of this process are possible, and are described in subsequent sections.

The following abbreviations are used for message types in the above figure:
TRSR: TransportationRequestSUITERequest
ODBCR: Outbound Delivery Bulk Create Request
IDCR: InboundDeliveryCreateRequest
ODBC: Outbound Delivery Bulk Confirmation
IDC: InboundDeliveryConfirmation_V1
The process runs as follows:
Create order (SAP ERP)
An order is created in SAP ERP containing items and schedule lines. When the order has been created, SAP ERP sends the order to SAP TM. For more information, see Integration of ERP Orders.
Create order-based transportation requirement (SAP TM)
When SAP TM receives an order from SAP ERP, SAP TM creates an order-based transportation requirement. For more information about order-based transportation requirements, see Order-Based Transportation Requirement.
Create freight units (SAP TM)
Before transportation planning can take place, SAP TM builds freight units (FUs) based on the order-based transportation requirement. SAP TM considers items and schedule line items when creating freight units. For more information about creating freight units, see Creation and Changing of Freight Units.
Perform transportation planning (SAP TM)
SAP TM performs transportation planning based on the freight units. The planning results include pickup dates and delivery dates, resource assignments, and routes. For more information about transportation planning, see Planning.
Create delivery proposal (SAP TM)
SAP TM creates delivery proposals based on the transportation planning results. SAP TM sends these proposals to SAP ERP to create a delivery. It is also possible to create delivery proposals based on freight units, if transportation planning has not been performed. For more information, see Creation of Delivery Proposals.
Create deliveries (SAP ERP)
When SAP ERP receives the request to create a delivery, SAP ERP creates the delivery. This can be an inbound delivery or an outbound delivery. For more information about the process of creating deliveries in SAP ERP based on delivery proposals from SAP TM, see Creation of ERP Deliveries from SAP TM. It is also possible to create deliveries in SAP ERP without having sent a proposal from SAP TM. For more information, see Integration of ERP Deliveries.
Log delivery confirmation (SAP TM)
When SAP TM receives a confirmation of the deliveries that have been created in SAP ERP, SAP TM writes this information to the application log. If errors occurred during delivery creation an alert is generated in SAP TM.
For more information about monitoring the delivery creation process, see Monitoring of Delivery Creation.
Create delivery-based transportation requirement (SAP TM)
When SAP TM receives a delivery from SAP ERP, SAP TM creates a delivery-based transportation requirement. For more information about delivery-based transportation requirements, see Delivery-Based Transportation Requirement.
Consume order-based transportation requirement
When SAP TM creates the delivery-based transportation requirement, the delivery-based transportation requirement consumes the transportation demand of the corresponding order-based transportation requirement or requirements. That is, SAP TM determines the corresponding order-based transportation requirement items and reassigns the freight units to the delivery-based transportation requirement.
For more information, see Consumption of Order-Based Transportation Requirements.
Adapt transportation planning
If necessary, SAP TM can re-plan the transportation demands of the delivery-based transportation requirement and its freight units.
Execute transportation
Transportation is executed based on the planning results.