How do I prevent multiple callbacks?

Winshuttle Workflow can add multiple callbacks to a file received in a queue, if the file remains in the Data Files document library, even after its callback is received from Winshuttle Server. If you use CENTRAL to move completed files to another list library but again select "Data File" as the target library, repeated callbacks occur. This is because after CENTRAL gets the autoposted file response from Winshuttle Server, it renames the file and moves it back to "Data File" library. After this, Workflow checks the status based upon the file name and posts it again.

File renaming from Workflow resolves the problem.