Get ready to make the switch!

A ST button being able to change STHM or even mode.

As of November 2019 this should now work by having the button activate a scene which sets the desired value.


I guess I get excited too easily and did a silly move :crying_cat_face: thankfully all my new scenes are working in new app. Only thing is my wife’s Google Assistant doesn’t see any scene created in new app…

No I meant how long would history get messed up and need to do this trick again

I have had to do it each time I go into history. Though, I really don’t go in there that often.

Where does this leave community users who have created or maintain custom DTHs for devices that don’t have official support from Samsung?

As the last user remaining that is maintaining a collection of custom DTHs for Xiaomi / Aqara ZigBee-based devices, I want to know what my options are in terms of bringing full compatibility with the new SmartThings mobile app.

My problem is it appears I am essentially barred access to the new Samsung developer tools and new documentation because I am a third party. I would have to be a employee or official representative of Xiaomi / Aqara in order to gain access.

So I do not have a clear idea of exactly what changes need to be made to all those DTHs I am maintaining to get them fully working in the new app.

I want to know: what options do I have?

If Samsung is not going to provide full support in the new SmartThings mobile app for community-created DTHs for devices of companies that aren’t interested in approaching Samsung directly, then I don’t want to be the one to make that announcement on the above-linked thread. You or another staff member of SmartThings should do that so users are well-informed to make whatever choices they need to make as a result.


Here is another example where the automation scripting is frustrating. I want a siren to sound for a very short burst when a trigger occurs. So I first add the action Alarm on with Delay this action not set. Next I want to add the action Alarm off, with a Delay of say 5 seconds. But because I already used the Siren device in one action I can’t use it again. I will try making two automations from the same trigger…

Later: That worked :slight_smile: However, much neater to have either a) had it in the same automation or b) edit the Zwave Siren handler to allow shorter alarm durations


Talk about convoluted.

What happens to the devices that are only supported in the Classic app. My Rachio sprinkler controller doesn’t work in the new app!?

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My only remaining DH that is not working correctly in the new app is SimpliSafe. It does show up in the new app but with no control of alarm states.

The issue is the child apps are created with INCOMPLETE status in the new app.


Scenes in the new V3 app have a lot of the functionality of Routines from the Classic app.

Back before Webcore, we used to change modes in the Classic app by triggering a Routine. Same idea. So while certainly somewhat convoluted, I think it is part of the traditional smartthings official feature way of working with modes.

Being an organization doesn’t unlock any additional tools or documentation for hub connected devices. It basically just allows them to add their device’s fingerprint to a built-in handler, setup branding for it, and submit it for publication. The instructions for that entire process is in the public documentation.

Near the beginning of this topic ST mentioned releasing documentation for the new mobile app within a few weeks/months which is what custom developers and organizations have been requesting for a long time.

I’m assuming if ST planned on only providing that documentation to organizations they wouldn’t have mentioned it here…


It appears the exact point I made earlier is still an issue. 10 hours have past since my post and not a single reply from a Samsung employee. Disconcerting.

@blake.arnold Thanks for the warning - will defunct brands currently supported in the Classic app (like Halo) be supported in the new app? I have Halo Smoke Detectors in my house, and want them to work when I make the switch.

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@blake.arnold also - will there be a simple way to migrate routines? I tried looking through this thread but started to get lost. For example, I want “Home, Away, Good Morning and Good Night” to be replicated int he new App, but I can’t seem to find them. Will they just automatically transfer as is?

Actually 10 hours for a response to your list of questions/concerns isn’t bad considering this really isn’t a support forum for their employees or developers, even though they are pretty active. I’ll reply back/edit with my thoughts in just a sec.


I have 11 of them and they work perfectly well in the new app. All capabilities are there, except the Hush buttons.


I appreciate your comments, but it is an official forum hosted by them. My main concern is the level of uncertainty we all face after investing lots of money in specific products and brands that may not end up working as they should or did.

Some communication can put these anxieties at bay.

They will once you get the banner to migrate