2) How should we decide whether it is a Sync or Async scenario?
Experts have already answered your first question.
For the second question, decision to make the scenario synchronous is made based on:
1) If the Sender application/ system is requesting for any response from the target system.
2) The sender/ target application supports synchronous communication.
3) Synchronous call wont take too much time to complete.
Regards,
Abhishek.
Bluesky
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