How do QF know you are/aren't travelling on a codeshare for lounge entry

[qf17]

How does QF lounge staff know that you are/aren't booked on a QF codeshare re granting lounge entry? Is there something on boarding passes that say it? Or have people had to show a copy of your eticket on QF stock? Off top of my head thinking of WP flying JQ intl booked on QF codeshare; WP flying LA booked on QF codeshare and so forth.

 

[Warragul]

Usually on the boarding pass. Something along the lines of "sold as QFxx_X".

Ultimately than can look at your booking in the reservation/ departure control system.

 

[BD1959]

In my experience they wouldn't look - the system would know and say "yes" or "no". Can't remember the last someone has actually looked at the BP entering a QF lounge - I get waved at to put the BP under the scanner and it flashes green ... obviously pulls the booking for that to be looked at because they never bother asking for the BP for my companion(s) if they are on the same booking.

Regards,

BD