Hoping that a traveller out of TLV can give me an answer on this.

I am upgraded to BF for a flight tomorrow on CO from TLV. I just got the confirmed upgrade and it shows on the printout online.

Will the CO printout showing me in BF suffice to get me into the First/biz security line at TLV? I am not sure what kind of documentation they require.

Do they have a list of all those flying out in First/biz or are they looking for e-ticket type documents showing class of travel?