You use an interface determination to specify which inbound interface of a receiver a message is to be forwarded to. You can also specify which interface mapping from the Integration Repository is to be used for processing the message.
You define an interface determination for a sender, an outbound interface, and a receiver.
For more information, see Generic Definition of Interface Determinations.
In the Display/Edit Interface Determination editor, you can select between two types of interface determination types (radio buttons):
Choose this option if you want to specify manually which inbound interface the message is to be forwarded to.
You can also specify the mapping that is to be executed. If you specify more than one inbound interface, you can specify conditions for forwarding the message to the inbound interfaces. These conditions are evaluated at runtime.
Choose this option if you want to configure a mapping-based message split.
In this case, you select a multi-mapping from the Integration Repository. In this case you get the inbound interfaces from the target interfaces of the mapping.
You would typically use a mapping-based message split if you have a source message with a number of items that can vary from message to message, and you want to use this source message to generate multiple individual messages for the individual items.