score:5
We ended up going to the Jdmt Medical Services in the Zurich Airport, and they gave us the certificate immediately.
Some other people hadn't even started the process online, but they also got a certificate, albeit after a bit more paperwork.
Surprised information about this option wasn't available online, but I guess they want to encourage people to use the online option.
Upvote:2
Not really an answer but a few data points:
Last time I tried (September 2021) to convert a US based vaccine certification (CDC card, smart health card, PDF doc) I failed. Nothing online I could find would accept any of my US credentials. They did accept my credentials at the airport on arrival for entry.
I was able to get an EU Covid pass in Germany, but since then Germany has stopped doing this, since the CDC card is just to easy to forge and you can buy them online in bulk.