Originally Posted by
serpens
When I was trying to renew Global Entry, I entered information for the new passport. Then the site kept saying something about an invalid passport. That was irritating.
In case anyone else encounters this, my workaround was to go back a step, which cleared the error. (I discovered this by accident when I simply gave up and was backing out with the intention of trying again some other day. After I went back a step, the red x changed to a green check on the progress bar. I'm sorry I can't be more descriptive.)
I had a similar experience. The basic recommendation here is spot on: be persistent even if it looks as if the site is rejecting your new passport info.
To be clear, this was only in the process of applying for GE renewal. Before that, I could not get the site to accept info on my new passport (issued mid-October) no matter how many times I tried, probably because it had only been a month or so since issuance.