I made a booking using BA Avios points, utilizing my wife's Chase companion pass, so the reservation is under her name with me as the accompanying passenger. We pool our points, which meant my BA Avios number was automatically selected at the time of booking. I opted for this initially but later contacted customer service to switch my frequent flyer program to AA because of my OW Emerald status through AA. My question, as the accompanying passenger on an Avios booking, I can still select seats and if so would I need to wait for 24 hours to select my seats before that OW Emerald status is reflected in my booking

Edit: Logged into my account and I still see my Avios number and not AA number. So, I will probably wait 24 hours and see if the AA numbers makes its way to my reservation.