A Microsoft file hosting and synchronization service.
Hi Kevin,
You should refer to Office 365 Group, which is normally accessed from the left navigation pane of OneDrive for Business or Outlook.
For this scenario, please click the Sync button on the ribbon, and it will trigger the OneDrive for Business legacy sync client (It’s different from the OneDrive client you’re currently using) to sync the document library. If the legacy sync client is not installed, you will be brought to a page to download it.
Note: If you click the group name from Outlook, please click Files on the ribbon to get to the above library page.
According to your screenshot, you’re currently using the OneDrive for Business next generation sync client. Which OneDrive sync client am I using?
It’s not supported to use the next generation sync client to sync SharePoint document libraries, including Office 365 groups. However, it is already in development.
Regards,
Jiaxing