Explain some real time scenarios in ALE IDocs?

Submitted by: Administrator
- communicating between two physically separated systems.
Either SAP to SAP or SAP to Non-SAP ,we use IDOC.

- SAMPLE Scenario is a new custom ALE where the receiver of an
internal service must be able to reverse the invoice receipt,
which will then cancel the applicable billing document
automatically on the service providers system. To avoid the conflicts between two systems.
Submitted by: Administrator

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