I'm booking a DONE4 with the AA desk. I wanted to use BA codeshare for a couple of flights on AA metal -- this would generate higher Avios for a BA exec card holder, and also help my wife to reach status (which requires paid BA tickets).
AA says this is not allowed and I must book using AA flight number for AA metal. Is that consistent with what others have found?
AA rtw desk traditionally has not been cooperative when trying to book other airline codeshares of AA flights.
Further, some BA codeshares have only been bookable when combined with a BA marketed transatlantic flight.