Originally Posted by
nerd
Inventory will show availability for fare buckets, even those that don't exist on a particular route. You should know that, you're a 1K.
Being a 1K has little to do with one's level of knowledge about how fare buckets work. The fact that booking codes are available, but cannot be purchased, is not obvious to the average ticket-buyer. I didn't know it until I started hanging out at FlyerTalk.