Passengers aren't paying for an extra bag these days. They are paying for every bag, carry-on or checked. They care creating new classes even lower than economy

Passengers aren't paying for an extra bag these days. They are paying for every bag, carry-on or checked. They care creating new classes even lower than economy. And this is causing problems with booking systems like Concur. I fly a few times a year for work and I'm obviously not sophisticated enough for these edge cases. I've gone back to calling our travel agency because the online system can't distinguish between Economy, Economy Basic, and Economy Plus(tm).