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Thread: Last Minute Upgrade Fare Class Query
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Old Jul 19, 2011 | 3:10 am
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yyzgigi
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Originally Posted by yul7075
LM Upgrade is processed in the DCS (Departure Control System) and never changes the booking Class on the PNR
the seat is taken from the highest J inventory

R is exclusively reserved for eupgrades
Andrew has confirmed before the LMUs are only offered when there is R inventory (although R>0 does not guarantee that they will be offered), so would not surprise me at all if it did adjust the booking class to R.
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