Hi Robert,
I think the main issue is how did it become out of sync in the first place and how do you maintain in sync with DEV - QA - PROD afterwards.
and when you talk about out of sync is it only the reports? or what is it that is out of sync?
master data and transaction data is depends on ECC and BW
BADI is transported via SAP transport
so only the items you can maintain in web admin and excel might be out of sync
Andy