Don't sync certain file extensions
We have just started using OneDrive for backups as part of our Office 365 subscription. One issue that we've had is with automatically generated files (such as those created when compiling code with Visual Studio... obj, exp, pch, and many more). There can be 1000s of these files in our OneDrive folders and they change each time we do a build. We don't care about the files being backed up and would rather they were excluded. We managed to do this by blocking them through the Office 365 admin pages, but it results in a red cross and 1000s of sync issues being highlighted in the UI. This is not only annoying, it means that we would easily miss any legitimate sync issues. It would be much better if these were not highlighted, or categorised as something other than "sync issues" - e.g. "blocked files".