Home Assistant General

You need the Samba Add On installed and configured
The Sonos requires older SMB protocols so go into Supervisor and set

compatibility_mode: true

in the configuration for Samba and make a note of the user name and password. If you do not set this error 900 will occur when you try to connect.

On Sonos App go to Settings > Media Library and add the Home Assistant folder share, which is normally

//homeassistant/media/music

with the user and password from Samba.

This will then catalogue the music and make it available via