Create Customer Distribution model Tcode: BD64

Now Click on the add message type button.A pop up box appears ,enter sending system.recieving system and message type.

Save the Distribution model.

Now click on the Generate Partner Profile button.

It leads to the next transaction where in the selection screen you have to provide Model view name, Partner System logical system and execute.
Then, you will be intimated about the partners, port creation, and outbound parameters creation.

Now Distribute this model.