I switched an Android phone (Google Pixel) from using a personal Google Account to a G Suite account and everything seems to be working fine except Google Now which shows the following error when accessing it:
"This account is not eligible for the feed".
Switching back to a personal account makes it work again, but of course that's not an option.
I found a few references online to countries not being eligible but this is not applicable in this case as I am in the U.S.