Ever been frustrated with how OneDrive tells you “there’s a problem”, but doesn’t tell you what the problem is (and as such, gives you limited opportunities to fix it)?
End user tip: The file and folder icons of OneDrive have a little green blob in the bottom right corner when they are successfully synced. If they don’t, then that’s where your issue lies. Just follow the error icon down till you hit the file causing you problems, then open it in the native application to try and work out what the issue is.
For IT users: the Log Files are here: %localappdata%\microsoft\onedrive\logs
There’s a new sync client which works really well available here: https://support.office.com/en-us/article/Get-started-with-the-OneDrive-for-Business-Next-Generation-Sync-Client-in-Windows-615391c4-2bd3-4aae-a42a-858262e42a49 – Be aware there are a few limitations that may cause you to hold onto your legacy OneDrive for Business client. but some of the more problematic ones are now gone (such as maximum file count).