I'm not sure if this is a feature on BA side. From Finnair I'm used to that a booked any flights with my AY FFP, it is showing in the app and on the website. It doesn't matter on which OW airline I booked the flight(s). US domestic flights seem to be an exception. However, I booked a flight on Iberia with my BA FFP. This flight I can find on IB but not on BA. I expected the same handling as it is with Finnair.

How do you handle such situation when you use your BA FFP?