Default Documents Location in OneDrive
With the newer UI in OneDrive for Business, the home page does not show the right URL needed to connect via the Cloud Connector. To get the the right URL for your "Files" or "Documents" location:
1. Click on "Return to classic OneDrive" in the lower left-hand corner.
2. When the older UI reloads, the URL now in the browser is the correct one to use with the Cloud Connector. It should look something like this:
Other Libraries or Lists in OneDrive
If you want to use another library in your OneDrive, you can get the correct URL by navigating to the location, opening the List/Library Settings and looking at the "Web Address:" given at the top of the settings page. That is the URL you will need for the connection string to this location.
If you are having trouble finding other content in your OneDrive location, you can click on the Cog-like icon near your account name in the upper-right corner and select Site settings from the list of options. Then under "Site Administration", select Site libraries and lists, which will show all items currently in the OneDrive as well as allow you to create new ones. The site content may also be listed in the left column of that page, if your UI configuration allows it.