Air Europa's website is a bit cumbersome if you want to find out the specific booking class. If you just ask for a return, you get the Lite, Standard, Flex things. I found out that if you use the multi-city option, they give the booking class (T, whatever) somewhere on the right in the screen. But otherwise you can only be sure of the booking class after you have booked. I ended up booking via an OTA for a price slightly lower as T on the UX website and after adding my FB number on the UX website I could verify I had T. For economy they now have so many different classes that my feeling is that for XP you usually are fine (wasn't like that years ago - then they had quite a few non-earning economy - and since at the time I tried to qualify on segments, these segments did not count either).

With Air Europa indeed you have to be careful. Considered this too good to be true business class AMS-Bogota for around 1500 return. In the end did not have the time to do such a trip, but it turned out also to be in O. Gives you zero XP, zero miles. Still a great offer for business class flying, but if you count on it to boost your XP levels, such tickets do not help. So, indeed - always check the booking class with UX if you want to have XP.