The architecture of eXchange centers around the concept of sending and receiving messages relative to one or more TPs. Each TP that you import or create and then configure corresponds to one of your business trading partners.
These TPs contain configurable transaction profiles for each individual TP relationship. You can configure TPs with Transaction Profiles and Schedules, within ePM, for use by run-time components.
Each Transaction Profile specifies which one or more BPs to use for the current transaction, where and how to receive inbound messages, how to configure and secure messages in their channels, and how and where to deliver outbound messages.