Sorry but as an official A/L = Alojamento Local = local accommodation, we are obliged to capture the identity of all people staying at our apartment for https://siba.sef.pt/. To not waste time when you are in Lisbon, we deal with this before so you can enjoy the maximum of your holiday.
Please go through the 5 guest forms (leave them empty) even when you're less, the submit button is at the end.