The K-Plussa-mobiilikortti (https://play.google.com/store/apps/details?id=com.plussa.plussacard&hl=fi) don't work in Oreo beta, worked in 7.1.1 (also mailed k-plussa support).
Hi Patrik S\u00f6derblom,
Thanks for participating in beta labs and helping us create the purest and smoothest Nokia phones experience!
To make sure all feedback is properly recorded and processed, please remember to report it feedback through the Feedback App.
Have a wonderful day!