HI Murali
As I can see you have marked this thread answered, I would like to request you if you could share the solution for all of us.
I did some research and found that system is not able to get the WCM model code ( single character code) for your plant 1000. That's the reason you are getting the error.
It would be nice if you could share the solution for all of us.
Regards,
Amol