re: "oneworld" award (140K/280K/420K) Planning - The Definitive Thread
If you are doing PER-BNE-HKG-MAD then that HKG-MAD availability is based on HKG/MAD as the origin/destination on CX. Changing that to PER-HKG-MAD changes the origin/destination to PER/MAD in the view of CX and CX may not be permitting that origin/destination in U class. If there is no availability when looking as PER/MAD, then you're out of luck.