Hi Hedy,
Yes, ok, but exactly what data would you want to maintain & store in the BoL replica? Are you trying to record a replica of the actual BoL in the system? If so, for what reason?
Please consider if you could instead use the "Presentation" document type for that - then you can create it with standard configuration when the Inbound Delivery is saved.
If you really want to use the BoL, then you will have to develop your own solution to map and call the GTS interface module /SAPSLL/API_6800_CFB_SYNCH (or ..._CFB_CHG if the BoL has already been created). You would need to provide the BoL number in the interface somehow.
Regards,
Dave