Hi Jurgen,
Thanks for your reply.
But I could not find any batch displayed in CL30N. I could generate only a list of classes for a particular characteristic. I want to go one level below and get all the batches for a given characteristic and characteristic value. Is there any menu option in CL30N?
I find CT12 to be a better option since it goes one level below and shows batches, but even there, I am not able to filter and see only batches that have null value (value not entered) for a particular batch characteristic.