I meant to add -- the app works ok for me though.

"Unable to Sign In"
 

Anyone else getting this? I get the same message on both the app and on the web.

Unable to Sign In

Account Sign In is temporarily unavailable. We apologize for the inconvenience. Thank you for your patience. https://www.marriott.com/marriottass...e=480px:*%202x
It's all right here with the Marriott Bonvoy™ App
LEARN MORE

I am using the desktop version and got the same exact error message.

Thanks. Wanted to make sure it wasn't just my account.

Seems to be working fine for me now.

I can't logon to website via browser. Every time I try to logon, I'm asked to change my password and confirm it's me by typing code from email. After that, I'm back at change password requirement. I tried on computer and on the phone. There's no error when chaning password and it's accepted.

At the same time, I'm logged in the Android app and it works with my original password, except the fact, that it redirects me to website to book particular hotel. And since I can't logon to website...

Anyone else experiencing similar loop. It's like this for couple of days for me. Gave it some time, thinking it might be some IT issue, but the same happens after waiting for a few days

It seems lately that if I add a second name to a reservation, the system updates the reservation to say there are now 3 or even 4 guests in the room. I'm looking at a reservation I have at JW Marriott in BKK where my friend will arrive before me, and we now have a 6600 THB Extra Person Fee as there are supposedly 4 of us in the room. :confused:

Seriously Marriott, get your sh!t together and spend some money upgrading your IT, or better yet, junk it and start over.

Wow, I didn't post on this exact same problem last week since I wasn't adversely affected. Had a reservation at the lowly Buffalo Marriott for this week on points. Logged in next day for daily review of reservations (I have a lot pending) and found number of persons changed to 4. Reservation was for 2. Didn't think much of it until next day when XP charge added to points total. Again I figured an easy-enough fix but then could not amend to 2. Wound up cancelling entire reservation and rebooking. Next day, same thing. We wound up staying home so I wrote it off as "one of those things" but now that it's an issue for someone else, thought I should add 2 cents.

Ever since the SPG merger, Marriott just can't get their website/app right. I've just about never had any issues with SPG IT, where Marriott has been a complete dumpster fire, not a single week can go by without some issues
#givemebackspg

Trying to login to my wife's account to do a transfer to AA for her to preserve her points and AA miles from expiring early December. The website wants to force a password reset, but the forced password reset page doesn't seem to work. I can't enter the email address, which is a required field. I tried reseting the password through the Forgot Password? function, but that just does an infinite loop. Stranger still, the app says her account isn't activated for online use, but if I try to activate it, I'm told it's already active.

I can login to my own account just fine, although it did force a password reset. The website didn't work for that, but the app did. With the new password, I can login to my account through either webpage or app. Wife's still doesn't work.

So you have similar problem to my loop password change. Today, when I logged on website, I got information that Sign in is not possible and was directed to app. App still works for me, but some options are limited.

Yep, seems like it. I did try one more time and figured out where I was going wrong: the forced reset password wants "email" in the first field, but when I used Safari's autocomplete password feature, it filled in the member number, which worked magically -- I couldn't type anything in the field myself, but Safari did it just fine through autocomplete. With the member ID in the email field, it seemed to finally work correctly.

So found this issue in the Marriott Bonvoy APP: Currently in a long-ish stay at a Residence Inn, and suddenly, today, the check-in date of the stay that’s currently going on, changed to 3 days later than when I actually checked in. Since it’s weird, never had it happen before, ran down to the front desk, where in they confirmed that the reservation looks all fine on their end and it actually says the correct date of when I checked in.

however, the upcoming future stays look fine in the app. Never had that happen!!??

UPDATE: Checked now, post 12 am the following day and the check in day seems to have moved 1 more day behind, bringing the total to 4 days later than when I had actually checked in. Checked both on the app and the website - same thing. Hope the elite night credits and points post properly!!

Are people still having issue with forced password reset? I keep going in a loop. I've changed it three times and I just cannot log into the web site.

Yes, the password reset issue persists for the past couple of weeks. I'm unable to replace the email with the account number, as Autolycus suggested above. I've tried 3 separate browsers. It's very frustrating to try to plan holiday travel using only the mobile app.