We’re about to launch a STL that sleeps up to 22 guests, so of course more than 1 guests needs access to the guide. It was suggested that we individually invite those 22 guests - that’s way too much admin. Just trying to get that info from the lead guest would be impossible.
So I’d suggest that each invitation creates a QR code, so that could be printed out for the guests to scan on arrival. And the access would expire at the end of their stay as with the current invitations.
I know there is a QR code for each guide, but access via this does not expire.