Originally Posted by
gormless
That only accepts a PNR, not an e-ticket number. (Unless the page is incorrect.)
This is something I'd like to be able to do - I have an e-ticket number (actually, 11 of them), need the PNR. (Group booking, I'm the person who paid. Need PNRs to book seats.)
Call BA, ask for one of the PNRs. Finnair should then send all 11 individual passenger e-ticket receipts based on just the single PNR so long as they are under the same original reservation.
Bewarned, this only sometimes works.