XI Acknowledgement: MQ File Transport

Hi
My Scenario is as follows.
SAP R/3 -
Proxy--> SAP XI -JMS-> MQ
SAP XI reads the data through proxy and the file is send to MQ via JMS Adapter.
I need to send the Successfull status(if the File is put on MQ) back to SAP R/3.
How do we handle this syncronous scenario.
Can we can have Two Queues defined (one for sending the data and other for recieving the Acknoledgement) in same Scenario.
Or rather then getting any response from Target system, can't we send the same through SAP XI, whether the file is successfully delivered to MQ. Is there any step in BPM (transport Success) where I can send the response after Mapping etc have been successful.
Best Regards
Paresh Mishra

Hi
The solution suggested by Sudhir sends the Acknowledgement back to R/3 System once XI is able to pick up the data through proxy.
Is there a simmilar way to receive response when the file is put on Queue and end it back to R/3, without waiting for MQ to send the response?
Supposingly the file fails during Mapping and is not furthers end to MQ. Is there any way where I can send the response back after the mapping has been successfully executed?
As suggested by Michal for using Corelation. I guess I probably need to define two seperate Communication Channel with different Queue names.
As I have not worked in BPM before, so doing correlation will be interesting though touch too.
Any more suggestions are highly appreciable.
BR / Swetank

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