<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by Shareholder:
Some airline res systems will record an award flight for mileage credit if last minute changes are made, such as involuntary rerouting, standing by for earlier flights, etc. This does not occur frequently, but has been known to on occasion. Otherwise, the class of service code award seats are assigned are programmed into res systems to be invalid for mileage credit.</font>
Happened to me on a DL BE award ticket. Got rerouted the day before so I was leaving out of JFK and not ATL as originally ticketted. Got mileage credit for a fully ticketed F/BE ticket from my originating airport on into Europe.