So when the one author saved his modifications it saved, but then the next author saved his changes over that It that is opened co-authoring won't work because the file is being opened from a different location by each user.) But I'm not sure if co-authoring will work if you don't open the document through the web UI.Īs I said, I suspect what you have experienced is two users who opened the same file for editing, but where co-authoring didn't get enabled. (I'm still not clear on your use of the term 'synced' since that implies the use of the OneDrive for Business sync engine to establish a local 'synced' copy of
The second issue may be the use of Windows Explorer to open the file. So your first problem may just be a result of using Office 2016.
Co-authoring is enabled by default if both users open the document from the SharePoint site and have a compatible Office Application.
