
Internal orders can only be created with reference to an order type.
You must assign each order to an order type, which then transfers certain parameters to the order. Order types define the purpose of the order and the way it is processed in the system. The order type may also be used to group together orders with similar characteristics.
The order type is valid for an entire client; therefore you can use an order type in any controlling area.
Among other things, the order type controls:
Whether commitment management is active
Whether revenue postings are allowed
Order status management
Characteristics (required, optional, and so on) of master record fields
Whether the order number is internally or externally assigned, and the number range
General parameters for settlement, planning, and budgeting
The presentation of the master data.
You can create Model Orders as a reference and assign them to the order type. Doing so, the settings of the model order are automatically entered when creating new internal orders for your order type.

The master data defines the attributes of an order, including organizational assignments.
Internal orders, like cost centers, are assigned to a company code and a controlling area.
To transfer values posted on orders to a profit center, you enter the profit center in the order master data. All actual postings to the overhead order are passed along automatically to the profit center. Plan values also may be transferred to profit center planning if required.
If you assign an order to a work breakdown structure element (WBS element), you can monitor the value of the order in the Project System (PS). In addition, you may process the settlement of all orders assigned to the project automatically during project settlement.
The remaining assignments possess informative value, meaning that they can be evaluated in the internal order information system. This information does not influence the posting of plan or actual costs.





