Originally Posted by
fastair
Very simple answer. Anytime the flight number, origin, destination, date, or booking class on reservations becomes different from what it was at time of ticketing (or last sync,) a sync (or exchange) must occur as they ate no longer SYNChronized.
Ok I get this (thanks!)
But let's go back to my original situation. Original itinerary is on UA outbound and LH return all in B class. Ticketed in B on 016 ticket stock.
LH return upgrade has cleared (into LH "I" bucket) using Star Alliance Upgrades. No impact to UA reservation.
UA reservation on outbound flights are the following:
-Domestic hop to a hub (trying for instant B upgrade, but isn't available)
-Transatlantic flight from hub to EU. Waitlisted for biz class upgrade with GPU
In my scenario, none of my times, flight #'s, cities are changing.
My question is if the GPU upgrade clears (or the B instant upgrade) will that require the ticket to be "resynced"? And if the answer is yes, is this with or without a ticket reissue.
I think the answer is yes to needing to be resynced, but no to the ticket reissue since all original flight coupons are still valid.