Originally Posted by PlaneSpeaking

I have the same problem and couldn't amend the API in my main EC account to show my new passport number - it let me enter the details but then I got the logout/login message and it didn't save. I followed the advice here and did a test run within an existing booking to change the passport number within it. This worked and it also gave me the option to save the passport number in my main API which I did. Once I'd logged out and logged back in again (honestly, is this really still an issue?!), I could see the passport number had updated in my main API but when I went to check my remaining individual bookings, it was still showing my old passport number. This means I will have to go into each booking to update but this shouldn't take too long, despite having to logout/login for every booking! The only interesting ones are the couple of flights we booked through Travelup for the amazing Finnair fares to HEL as these don't seem to give the option to amend the API. Does anyone have any ideas for this or will we find there are no details in there anyway due to it being booked through Travelup? Should I anticipate any issues when trying to check-in do you think? Thanks in advance.