So I called today to change the name on a reservation at WKORV (I rented my studio side July reservation, hurray!)
I got through to a human immediately, to my great surprise, and they accomplished the change. I then received two new confirmation emails, one from "Westin Vacation Club Reservations" (with the 8-digit confirmation number) and one from Vistana Signature Experiences, with the six-digit confirmation.
I also went onto Marriott.com and changed the name on the the reservation there, for good measure, as I wasn't sure the change was going to flow through and populate everywhere it should.
In the past, Vistana would request the email address for the new guest, and they'd receive a new confirmation directly, but this time they didn't want the guest's email address, which I thought was odd. Also, the confirmation from Westin Vacation Club shows the new guest name, but shows my Bonvoy number (last digits only) and status, which is kind of stupid but I guess there's nothing bad somebody can do with only a portion of my Bonvoy number.
Also, the reservation still says that there will be a $20/day charge for parking, which I believe is not true for owner reservations, regardless who is staying there. It's annoying that they put that in the confirmation. I told my renter that they shouldn't be charged for self parking and that if the resort tried to charge them, they should call me and I'd try to help sort it out.
Those of you who are more experienced at renting your owned units: have I done everything I need to do, and do I understand correctly on the parking? Do I need to call the resort a couple of days before check-in to verify that everything is ok, or can I depend on MVC/Vistana to get it right?