Using QF lounge pass when BA flyer number in booking?

[scoobs214]

Hey guys, could I please have some help.
Currently credit all QF bookings to BAEC but wanna link a QF lounge pass to my booking and can't due to BA fflyer number. Tried to change to QF fflyer number temporarily to link lounge pass but won't let me in manage booking.
Is this possible to do and if so how do I do it?
Thanks heaps

 

[serfty]

You could try the Qatar or Finnair websites to change the FF number.

Or perhaps try calling Qantas.

 

[Stevo.1702]

If you don't mind I'd be curious to see what process worked for you. I'm about to switch all my earning to BA and will probably have a trickle of lounge passes that I will want to enjoy

Thanks