Configuring the fileserver in Workspace 365Follow
It is possible to use your own File Servers based on WebDAV protocol in the Document app. This allows you to bundle SharePoint, OneDrive and the file servers in one easy-to-use Document app.
The admin can set the desired fileserver / WebDav url in the settings page. If these settings are saved, the file server will be added to the documents app.
The first time, when the user opens the fileserver, they will be prompted to fill in their credentials once. These credentials can be changed in the "Integration credentials" settings menu.