Originally Posted by
wxguy
Recently I had an ORD-HKG W fare W/L for PN -- at booking it was PN0. But a few days ago I checked, and it was PN3 PZ1, but my upgrade had not cleared. I called GS, and the agent manually pushed it through. She told me that she sees a lot of these "stuck" upgrade W/Ls that don't clear when PN/PZ opens, and has reported these up the chain as she verified they are supposed to automatically clear if upgrade inventory is released.
Yes, waitlisted instruments are absolutely supposed to clear when inventory opens (and sometimes don't). CPUs, though, are not guaranteed to clear at any particular PZ number.