One difference between RES III and Amadeus is the identification of your "Status" for the FQTV.
In RES III - The PNR identifies your status on booking date - and that can carry through until the FQTV is refreshed if needed at a later date. However - this does not really matter because DCS will refresh the status when the flight loads 48-72 hours out.
However - Amadeus and its integrated DCS platform are taking status from booking date and not refreshing when the flight is loaded in DCS. I guess in general - this can only work to your advantage because - - if your status got lowered - - you won't tell them but you can always refresh the FQTV at checkin to get the correct status.
I know this becauas Mrs ZRH2YVR went from *G to *S on March 1 of this year - but all the bookings we made before March 1 still have her as Gold on her checking - - which allows her all the *G benefits and lounge access. . . .
On the way up a few years ago when she went from *S to *G - we had to go in and remove the Aeroplan number and then add it back again to refresh the status at departure.
That is going to create nightmares. . . (then again AC reads this so they will figure out a way to fix this).