HI. I have two document libraries in two different sites, and I need to efficiently copy the entire contents of one document library over to the new sharepoint site.
I have tried copying in windows explorer, and it has failed multiple times for different reasons ( too long file path, source disk unreadable etc etc)
I tried to use sharepoint designer but it also gave a disconnected error, and now I have no idea what has copied over and what has dropped, and I need to do an efficient scan and sync of both locations.
I tried using Allway Sync, and this failed at the first hurdle by offering google drive, onedrive and many cloud location options, but not sharepoint online.
I tried using the WebDAV option, but if failed saying "could not access the network device"
Any advice welcome on how to efficiently copy all data from one sharepoint doc library to another at a different URL but on the same office 365 tenant.
Thanks in advance.