Ask SAS technical support if they have backups of user data and can do a restore. This would only be possible if your program was saved to a .sas file before the backup window/snapshot occurred. But I do not know how SAS handles that aspect of On Demand.   For critical work, always do a download to your local computer, and use cloud storage (OneDrive, Dropbox, whatever you have) to be o the safe side. ... View more