NataliaBrownel

SPMT/Migration Manager does work for this. Map each user's home folder to their OneDrive Documents path, then enable KFM afterwards and it'll merge in. It can be fiddly with permissions and long paths, though. If you want something less manual than robocopy, take a look at GS RichCopy360, which copies straight to OneDrive with scheduling and delta syncs, or CloudFuze for a managed bulk migration with reporting. Pilot a few users first.