Hi Krish,
1) when is the status changed from 'A' back to space (MCHB-SPERC)? Does that happen automatically? We have lot of old batches with status 'A'. I would like to either get the status back to space or not consider them for batch determination.
A allow you to perform a goods movement on these batches. There is no standard way to change MCHB-SPERC in mass you can try the BDC or LSMW.
2) While archiving old batch records, will associated material documents also be deleted?
Material documents will not get deleted only batches will be deleted. I would suggest better you do the test with couple of batches, archive them and check the results.
Regards,
R.Brahmankar