Defining Receivers 
Here you can define the type of receiver identification for the message and assign one or more receiver business systems to the sender.
You have opened a routing relation.
In the editor Change Routing Relation, the column Receivers displays one or more receiver business systems.
In change mode, here you can:
· Enter receiver business systems manually

When entering this information manually, make sure that you separate the entries using commas, and that no special characters can be used for business system names (apart from underscores “_”).
· Define receiver business systems using Search Help
You can call the search help by choosing
. In the dialog box Edit
Receiver, you can use the radio button to choose between two methods of
receiver identification:
¡ Specifying the receiver explicitly from a list
Here, the possible receivers are displayed to you in a list. You can use the check box to select one or more receiver business systems.
In the column Condition of the editor Change Routing Relation, you have the option of specifying a condition for forwarding a message to these receivers. To do so, use the Condition Editor.
¡ Identifying a receiver from the message contents
Here the receiver of the message is determined at runtime from a particular field in the payload. The payload usually contains no business system names, rather business application data. However, a receiver business system must be known for receiver identification. The corresponding field in the payload is therefore first mapped onto a business system using Value Mapping. Only then is the receiver identification at runtime guaranteed.
You can enter the information for the payload field selection and for the value mapping in the editor Specifying the Extractor Parameters.

In many cases, the receiver is included in the message in the form of a supply partner or business partner ID. In cases such as this, this information is determined from the payload during routing, and is mapped onto a business system by way of Value Mapping.