Feb 24, 2020
Tried about 25 times and finally got through with the "integration" password process within the app. However, Spotify tab shows a spinner then says "Unable to navigate to the music service." Pandora, iHeartRadio, Deezer, and Amazon Music all work flawlessly as usual. Really missing Spotify today...
Nov 7, 2020
Mine is fixed!! Now I can link to the Spotify thru Bose Music App and also play the music.
Not sure whether they fix it or it is because I did something.
I saw this article: https://community.bose.com/t5/Wave-Systems/Spotify-problems/m-p/252897
and suddenly remember there was a Spotify update on Thursday, so I delete my Spotify App and reinstall, and it magically works and Bose Music links to Spotify.