After latest HA 2025.12.4 : Failed setup, will retry: Reached limit of subscriptions

Configuration
1

Hey all,

After I updated HA to 2025.12.4 I got this error for SmartThings

Logger: homeassistant.components.smartthings
Source: components/smartthings/__init__.py:183
integration: SmartThings (documentation, issues)
First occurred: 21:08:20 (28 occurrences)
Last logged: 21:32:21

Couldn't create a new subscription
Traceback (most recent call last):
  File "/usr/local/lib/python3.13/site-packages/pysmartthings/smartthings.py", line 474, in create_subscription
    resp = await self._post(
           ^^^^^^^^^^^^^^^^^
    ...<17 lines>...
    )
    ^
  File "/usr/local/lib/python3.13/site-packages/pysmartthings/smartthings.py", line 180, in _post
    return await self._request(METH_POST, uri, data=data, params=params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/pysmartthings/smartthings.py", line 122, in _request
    return await self.__internal_request(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        method, url, headers, data=data, params=params
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/local/lib/python3.13/site-packages/pysmartthings/smartthings.py", line 165, in __internal_request
    raise SmartThingsCommandError(ErrorResponse.from_json(text))
pysmartthings.exceptions.SmartThingsCommandError: SmartThingsCommandError (ConflictError, Unable to create SinkFilter, threshold limit of 2 reached)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/components/smartthings/__init__.py", line 183, in async_setup_entry
    subscription = await client.create_subscription(
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    ...<2 lines>...
    )
    ^
  File "/usr/local/lib/python3.13/site-packages/pysmartthings/smartthings.py", line 495, in create_subscription
    raise SmartThingsSinkError(msg) from err
pysmartthings.exceptions.SmartThingsSinkError: Reached limit of subscriptions
2 Likes
2

Same error here. Tried deleting / re-adding integration but no dice.

3

Just got the same here.
Let’s just soak this overnight and see if it’s still an issue in a few hours.

1 Like
4

This one?

5

Issue solved itself. After a good night sleep it was running again

6

That limit of two tries seems artificially low for SmartThings. Maybe feedback to ther tech support may get them to raise it a little?