Ramesh,
if you execute the program : /SAPSLL/UPLOAD_LICENSES , it is showing clearly as Upload Licenses to GTS in CSV format . it seems SAP has given only this option alone.
Regarding the issue with CC retransfer, are you able to view the message screen as 'Retransfer Commodity Codes to Feeder System', and in that you might be able to view the message stating as
'Feeder System : XXXXXX
Transferred Material/Commodity Code Relationships:
Country : XX Commodity Code : XXXXXXXX Material Number :XXXX-XXX
this specify that the retransfer of CC to ECC is successful.
after this we need to execute the Program : /SAPSLL/STAWN_RETRANSFER_R3 in ECC and the data will be updated in 3 tables T604,T604T and MARC.
if you are able to view the above mentioned message after executing the Program, then the data must be updated in the above mentioned Tables.
if this is not coming then you need to take the help of your Technical Consultant to identify the Root Cause by debugging.
Please check and let me know if you still have any further clarifications on this.
Thanks,
Srinivas Y