We have found some problems with the details you have provided.
Error during add or update contact details
I have 4 passengers I need to add advanced passenger info for.
I insert details for 1 passenger and try to "Submit" but I get the error as screenshot. There are warning signs next to the other 3 passengers suggesting I need to fill in their details. I try to fill in their details but it says I need to "Submit" my first passenger info before I can fill them in.
I'm stuck in a loop. I can't submit 1 without filling in the others and I can't fill in the others without submitting 1. Paradox. Not happy.
Please help. I travel Sunday and need this sorted.
> Did anyone figure out how to fix it? Very frustrating.
In my case it was the missing ESTA form. (https://esta.cbp.dhs.gov/faq?lang=de)