I'm surprised calling worked. Lately, it seems, they simply won't touch an II reservation when calling Marriott (hotel company/Bonvoy).
I had similar experience today. I tried all three and nothing worked. I plan to call when I have time, but this is really getting annoying.
I think if no one picks up the week you released, the reservation stays in your name. This happened to me when I did a last minute retrade and at checkin the front desk kept telling me I had another room to check into. I could also see the reservation in my app for a few days after check in.
Were you logged in to your Bonvoy account when you tried it in the web browser?
Yes, I needed to be logged in to go to "My Trips"
That is the problem. You can't be logged in when trying to add it. You need to be logged out. You can still look up a trip manually then edit the guest details to add your Bonvoy number. All while logged out. If you are logged in, it won't work. See post #25 and #27. It will save a phone call. I am actually quite surprised that calling works. For many years they flat out refused to add a Bonvoy number to an II confirmation when calling Marriott customer service.
That's why I went to the app.
But the app doesn't work either. If you simply use Marriott.com, not logged in to your Bonvoy account, it works.
I followed your instructions (Marriott.com and not logged in) and was successful. This makes absolutely no sense and no one would know how to do it without your instructions. I received my pre-arrival email last week and provided my husband's Bonvoy number when I filled it out, but they did not attach it. Usually in the past that would work. MVC never ceases to amaze me with their wonky goings on.
The field to add your Bonvoy number is there, you just need to click the little arrow to expand the guest information section to get what I showed in my screen shot in post #27. Good to also know that it works if you log in after looking up the reservation.
It actually makes perfect sense, because MVC does not want people adding their Bonvoy # to II reservations. This is a loophole, that eventually will be gone once MVC sees this and other threads, and figures out how to fix it. Then no one will be able to do it.
Hence I have refrained from posting the workaround. For those who reached out to me privately, I have instructed them how to do so.
The option should always be there to add it at checkin. Oddly we've kinda come full circle again. If they are truly trying to block said loophole, they open one hole when they plug another. For a long time adding it by calling Bonvoy Customer Service simply hasn't been an option. We now have two reports in this thread where people called and the customer service rep added it.
Why do you think they don't want Bonvoy numbers against II reservations?
Because they have been shutting down all avenues to do so and MVC and Marriott reps started telling people it is not allowed.
Because any benefit to us is a cost to them. The more nights we accumulate through our timeshare stays, the fewer nights we need to stay at a Bonvoy property in order to qualify for rewards. Marriott management doesn't care if they piss off customers in order to reduce expenses.
I think the ability to obtain Elite Night Credits on an II exchange has always been a bit of a gray area. Up until sometime around 2008, I don't think getting ENCs for timeshare stays was officially part of the Bonvoy (then Marriott Rewards) rules. With that, most owners were able to get ENCs by attaching their number to a reservation. The same was true of Interval International stays. You could often get credit if you added your number to the reservation. This was achieved through a multitude of methods over the years that has changed every way till Sunday. Call in, add it online, add it at checkin. When one method was cut off, another option existed. Then the one that was cut off was perhaps opened back up again. Add it online, can't add it online. Add it on the phone, then they stopped doing that. On the phone was sometimes based on the actual customer service rep you got. So sometimes you played customer service roulette.
I don't think it is for this reason. There has never to my knowledge been an issue adding the Bonvoy # at check-in for II exchanges. Whether you get nights or not is a separate issue.