Originally Posted by
hardiwv
According to the rules, item 5, for travel originating in TC1 (US) ticketing deadline is 7 days prior to departure. For TC2 and TC3 (which includes Europe), ticketing deadline could be up to 1 hour prior do departure. This rule applies to business and first class bookings.
That might be in the case in theory. In practise, different ticketing carriers will set their own deadlines for when bookings have to be ticketed, and different operating carriers (CX in particular) will set a deadline for when ticket numbers have to be received, usually depending on how busy flights are expected to be.
Never used the online tool before, but I get the impression, from the numerous posts on here, that it takes time for the PNR to be queued somewhere for ticketing.