Downloaded a current copy of the MAS_xxx data folder and placed into a copy of the clients system in my computer lab. Discovered that 510 customer records show up using the F2 lookup in the backup company code made on 1/9/2013. Using the same F2 lookup in the ""live"" company, record count shows 343. Somehow 167 customer records (many with history) have been deleted. Searched the System Activity Log from 12/15/2012 to current and did not find entries where the Delete/Renumber/Merge Utility has been used. Only 5 customer records that existed in the 510 were flagged as Temporary. Any ideas of how this could happen? Sage technical support has no ideas.