I'm brand new to KVS and trying to reconcile what I'm seeing there with what I see on AS's web site.

For Dec 27 SAT to SEA AS is showing award seats in low coach, refundable coach and refundable first. There is also one U upgrade available.

When I check KVS is show FA+, CS/, WS/ and YS+.

So KVS is showing two buckets with availability vs AS showing three and the U upgrade space isn't showing on KVS.

Can someone explain how the codes on KVS map to the buckets AS has? And why isn't KVS showing the U upgrade space?

Newbie problem.