Reprocessing does the action part of the processing rule only, it does not follow the same route as a new document like recognise, match processing rule, do pre-processing actions and then execute the actions.
So, if you have to execute your pre-processing service, you have to resumit that document from TN, or try to impart that duplicate checking logic in the executing service from the processing Rule
Regards,
Pradeep
#B2B-Integration#Integration-Server-and-ESB#webMethods