After making several attempts to submit the online passenger locator card required for Portugal (https://portugalcleanandsafe.pt/en/passenger-locator-card), a few tips for anyone else who might be stuck (or who might have their autofill feature messing things up!):
- no dashes in the phone numbers, 2. no + for the phone country code, and 3. I used the hotel address for my Portugal location
Once submitted, it's pretty slick - you get an email with a secure PDF for printing the QR code and the form.