Hi Shashank,
You can provide Program ID at the Receiver IDoc Adapter (AAE).
Image may be NSFW.
Clik here to view.
(Ref: Connect multiple SAP ECC clients from Java IDOC Sender Adapter by Resource Adapter Cloning )
In the Program ID (ALEAUD) field, enter the program ID which you used when you created the RFC destination on the receiver business system.
Last parameter of the above image.
You can find how to register or create the Program ID:
PI/XI: PI 7.3 New Java based IDOC adapter's configuration (sender, receiver) - teaser
Regards,
Nabendu.