Originally Posted by WeLoveSpace

I eventually updated my passport details in my profile.

But now with every flight I get a check-in error (online and in the app):

The travel document details you have entered are not valid for this flight

Before you go to the airport, please check the passport and visa requirements for your journey using the [[url=http://www.iatatravelcentre.com/]IATA Travel Centre].

You will be unable to fly without the correct travel documents.

and have to go to a check-in desk to have my UK passport checked.

Even if I change or update my passport details in the booking I get the same error

Does anyone know what might be causing this and how I can remedy to use online check-in again ?

Thanks in advance