Since the UA/CO merger, the ITA: Upgrades-Awards/UA method was not working. When used with the old 11 digit MileagePlus Number, the error message indicates "the Method/Function is currently unavailable or may require a newer version of the KVS Tool."
However, UA has issued new MileagePlus Numbers, which are 8 characters long. When the new number is entered, the error message indicates an 11 digit number should be entered.
Either way, this method was not working.
OK, so I checked the KVS site and found there is an update to V6.9.6.R1 which resolves the problem above. However, I was not alerted that an update was available. This is the first time that has ever happened.