Hello,
Yes classification message is maintained- I checked it via WE82 in the source system.
Although I don't have authorization in target system to view the Class details completely, I was able to confirm if the required characteristic is present for the class via CL02.
Yes, Idoc was created both in source and target system and in both the systems it was successfully posted.
There is an option to - Ignore distribution lock , while sending the classification data( I have tried with and without that option) still no luck.
Regards,
Ankit