How to create a SAP PO loopback interface (without receiver) : Raffael Herrmann

What is a loopback interface?

By a loopback interface I mean an interface that does not have a receiver system, but instead transmits the sent (and optionally transformed) message back to the sender.

In the past I’ve seen only solutions which involved a receiver system with a small dummy server, that responded with the request sent to it. In opposite to this, our loopback interface will work without any receiver system and thus keep its footprint as small as possible.

Link: https://blogs.sap.com/2020/01/27/how-to-create-a-sap-po-loopback-interface-without-receiver/