I am wondering if anybody can confirm that SK did some changes in the cheap-ish intra-Europe economy fares (maybe after the introduction of business class). I believe in the past, most of these cheap fares were in O class, meaning that you could still credit and get some miles. Checking some flights for the upcoming period, I see that many of these cheap fares are now in N or R, which based on
this chart do not award miles (or XP).