We are updating the SmartThings web login on Wednesday, October 10th. Starting Wednesday, you will need to choose to sign in with a Samsung account or, if you have not yet migrated, a SmartThings account.
This change will not impact either the SmartThings or SmartThings Classic app. This will affect logging into the IDE and authorization of integrations such as Amazon Alexa and Google Assistant.
Regards,
The SmartThings Community Team
For comparison, here is the previous login compared to the new.
Previous login screen:
New login screen:
will this have the side affect of allowing Silk browser to be used to login? 
That would be nice, but I donāt think that is going to happen. But I HOPE I am wrong!!!
Any chance those buttons point to an URL we can use / bookmark that take us directly to the login type we want without having to pass by this screen? The two step login is a PITAā¦
Hopefully they expose a POST parameter or somethingā¦
Thanks for the heads-up, but Iām once again worried about the confusion this will inevitably cause.
Are average Customers actually aware of whether they are using a āSmartThings Loginā vs a āSamsung Loginā?
The product and Apps are called SmartThings; so why make the Customer self-determine how they are logging in?
SmartThings is still targeted at average home consumers, correct? 
Yeah, I had no idea what was going on during the process. I had to reset various passwords on various interfaces. Took about 20 minutes of waiting for reset email. During the process I had no idea why anything was changing - for a bit I wasnāt even sure it was legitimate and was possibly phishing.
For what end? I still have the same email and no idea why I had to waste 20 minutes. But I felt like I had to do it to keep my automation working? Next time, an email stating what is going to happen and when and why might be helpful.
I literally almost just decided to pull the whole thing out and forget about it.
Sorry - just had a long day. No idea why this changed, and felt like I had to address it as soon as I got home and saw the warning on the app.
Edit: Edited my post to lighten the tone - I was particularly cranky when I wrote the first reply. Long dayā¦
ā¦and I just logged out of the app, and back in and it is telling me that I have to āUpdate Nowā. What did I just spend 20 minutes doing? Frustrating process.
Edit: The app is no longer telling me that I need to Update so that seems to have taken just a few minutes.
It tells me every login that I need to āUpdate Nowā. Hopefully my automation still works tomorrow. Maybe someone can assist in my understanding of what is going on here.
Edit: OMG I canāt add any more replies. I was going to ask Brad_ST what that link is for? I have no idea what is going on with this account change. What type of account was I logging into the Classic app / IDE if it wasnāt a SmartThings login? What is a Samsung account for? What is the purpose of the change? Why couldnāt existing accounts be migrated?
Edit again: Now the app logs in with no password. I have no understanding of what is going on here. How do I get the app to require a password again?
Above it states āThis change will not impact either the SmartThings or SmartThings Classic app.ā This change showed up for me on the SmartThings Classic appā¦ that is how I found out I had to update my account.
Lol, I just realized today is 10th and this is already in place!
Mmm, seems like for SmartThings accounts we can use:
https://account.smartthings.com/login#showLoginForm
But I canāt figure out a way to get to the login directly for Samsung accounts which is the one I needā¦ 
I believe this will work:
https://account.samsung.com/accounts/v1/ee74a7b8afac668b2428f749d9c07f72/signInGate?locale=en
Awesome! yes, that does the trickā¦
Thanks
The update now pop-up to migrate from a SmartThings login to a Samsung login.
Does your SmartThings account (first link) have a location here? https://graph-na04-useast2.api.smartthings.com/location/list
And your Samsung account (second link) has a location here?
https://graph-na02-useast1.api.smartthings.com/location/list
The selector page is what contains the URL redirect, such as https://account.smartthings.com/login?redirect=https%3A%2F%2Fgraph-na04-useast2.api.smartthings.com%2F. Without the redirect, you will be directed to the server where your location is located.
Yes, I can see the locations on both links.
My SmartThings account password is not working anymore, I am using Samsung account.
Today I just updated the login account system. mobile presence was broken, I erase it from both locations and Add it again, and now my mobile presence is present in both locations. 
Once you migrate your SmartThings login to a Samsung login, you are not able to use the SmartThings login. This is by design.
In terms of mobile presence, were you using the SmartThings Classic app or the new SmartThings app?
Thank you. 
Samsung Account Update FAQ
SmartThings Classic app. Tonight I will remove the mobile presence from classic and install the new SmartThings Appā¦
Edit:
Now everything looks good, I just opened the Classic and checked the presence, I did nothing else ā¦ Maybe was my phone Gps.
Is anyone else having problems logging into the SmartThings Classic app right now? Iām getting a 502 bad gateway error. To the best of my knowledge the internet is working fine here; 3 people using it for different things.
Edit: Login now works. Just a brief outage I guess. Went to 500 timeout error and then a few minutes later it started working.
