Duplicate Message ID issue in case of Multi mapping (without BPM)

Hi Experts,

I am doing one sample Example for my requirement of converting the single source message data into the multiple Target messages.

for example, when sender system is sending the 5 sale order details into a single message in PI then my Inbound proxy class of ECC R/3 receiver system must get this sale orders separately, that means inbound proxy class method must be triggered separately for 5 sale orders from sender system. for achieving this, I have used the Multi mapping concept in ESR (without BPM).

This scenario is in Asynchronous mode.

The below screen shots give the details on what I have configures so far.

IN ESR

IN ID

IN SXMB_MONI of PI

IN SXMB_MONI of ECC R/3 Receiver system (Error in Processing)

due to this error, inbound Proxy class method is not being triggered for the single Sale order details as well,

please let me know how to tackle this duplicate message ID issue when we have multiple payloads to process in a single message.

please also let me know if is there any other workaround to fulfil this requirement.

Thank you,

Regards,

Jagesh