Smartthings integration broken and cannot be fixed. Getting 400 error trying to get token?

[zainag]

The problem

Since I updated to 2025.3.2 this error shows up and is not resolving for me. I thought that it might get resolved after waiting for some time, but a whole day in and this doesn't seem to get fixed.

Anyone have an idea on if the issue is on my end? This was working fine for ages until today.

What version of Home Assistant Core has the issue?

core-2025.3.2

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

Smartthings

Link to integration documentation on our website

No response

Diagnostics information

home-assistant_smartthings_2025-03-12T17-41-40.799Z.log

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response

[home-assistant]

Hey there @joostlek, mind taking a look at this issue as it has been labeled with an integration (smartthings) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of smartthings can trigger bot actions by commenting:

• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign smartthings Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component) to the issue.
• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component) on the issue.

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[joostlek]

Are you running multiple HA instances?

[zainag]

Are you running multiple HA instances?

No, what gives you that indication?

[joostlek]

So far this issue only came up with people with multiple instances. For now I would advice to remove the integration and readd it

[zainag]

So far this issue only came up with people with multiple instances. For now I would advice to remove the integration and readd it

Hmm, ok. Will I have to re-add all of the 22 or so devices or will they get recognized?

[joostlek]

In theory it should automatically recognize it. (and to be explicit, you should remove the HA integration, not remove something in SmartThings)

[zainag]

In theory it should automatically recognize it. (and to be explicit, you should remove the HA integration, not remove something in SmartThings)

OK, thanks! Will try it out an report back.

[fay000fay]

I also encountered a similar issue, displayed as "Reached limit of subscriptions."