Windows 10 and OneDrive Files On-Demand
OneDrive files On-Demand is a new feature introduced by Microsoft in Windows 10 Fall Creators update. With ‘Files On-Demand’, you can access all your files stored in OneDrive cloud (using the File Explorer) without having to download all of them and use storage space on your device. This feature is similar to OneDrive placeholder files in Windows 8.1.
Once ‘Files On-Demand’ feature is activated, all your OneDrive files are accessible either offline (where files are downloaded and available locally on your device) or online-only (where files are stored on the cloud and are available only when downloaded to the device) through the File Explorer.
So, if you have a profile in SyncBack that backup all files on your local OneDrive folder (both offline and online-only files), then the profile run may fail with errors when copying online-only files (because they are not available on your local device). If you wish, you can configure the profile to ignore online-only files from your backup selections, which you can configure under:
Modify > Expert > Compare Options > Attributes > enable ‘Do not copy offline files’ option
Alternatively, you can create OneDrive cloud profile to upload/download files to/from OneDrive cloud to destination using SyncBackPro.