[EDIT2: an updated version of this post with more details: Automatic Online Renewal Procedure Jan 2023]
[EDIT: added details and clarifications]
No documents needed for the Jan 2023 online automatic renewal workflow for GVs (no apostilled certificates, no proof of stay, no continued investment proof, no nothing).
You need an email address, expired permit number, date of birth. Follow the registration and login steps starting here: https://www.sef.pt/pt/Pages/registo.aspx
The permit number is the 9-letter alphanumeric code at the top right of the residence card, next to the words “TITULO DE RESIDENCIA”
A few clicks, confirm details SEF already has: NIF and marriage status, confirm address to receive the residence permits (typically your lawyer’s address, you can change it if necessary) and hit submit. That’s it. You immediately get a payment advice PDF which you are supposed to pay within 8 days.
(NOTE! Date of birth is DD/MM/YYYY, you may be confused if you are using Google translate on Chrome which will render it as mm/dd/yyyy)
Lawyers warned that they have no info on when the cards are likely to be issued, as this is a new workflow. However, going by previous experience, once the payment stage is crossed, they expect cards to be mailed within 30-45 days.
If you have family members on the GV, you need to register each of them separately, with their own individual email address and password, using their residence card number and date of birth, and apply for their renewals. This portal is completely different from the ARI portal, and email/password used there need not be the same here - this portal recognizes people during registration by their residence card number and date of birth.