401 error after ~24h passed on time-windows API

[zaubara]

Before submitting a new issue

• I redownloaded the latest release and restarted Home Assistant
• I've checked known issues
• I've enabled debug logs and attached the relevant logs to this ticket

Problem description

I have an automation running daily that sets the time windows for tomorrow (dynamic electricity pricing). This works fine, however on the second day I now always get a 401 error.
This does seem to be completely unrelated to the api rate limit - it’s a different error, and I have set the requests to only update every 10800 seconds (and 3600 - same problem).
I would assume that an old token is being used, maybe one that needs to be refreshed.
When I restart home assistant or reload the integration, running the same automation runs successfully.

Edit: I just noticed that waiting only a few minutes is enough - I waited 10 minutes and called it - 401. Restarted the integration - success.

Logs

logger:%20homeassistant.components.automation.vaillant_warmepumpe_gunstigste_stunden_heizen%0AQuelle%3A%20components/automation/__init__.py:718%0AIntegration:%20Automation%20(Dokumentation,%20Probleme)%0AErstmals%20aufgetreten:%2015:01:00%20(1%20Vorkommnisse)%0AZuletzt%20protokolliert:%2015:01:00%0A%0AWhile%20executing%20automation%20automation.vaillant_warmepumpe_gunstigste_stunden_heizen%0ATraceback%20(most%20recent%20call%20last):%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/components/automation/__init__.py%22,%20line%20718,%20in%20async_trigger%0A%20%20%20%20return%20await%20self.action_script.async_run(%0A%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20%20%20%20%20%20%20variables,%20trigger_context,%20started_action%0A%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20%20%20)%0A%20%20%20%20%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%201810,%20in%20async_run%0A%20%20%20%20return%20await%20asyncio.shield(create_eager_task(run.async_run()))%0A%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%20464,%20in%20async_run%0A%20%20%20%20await%20self._async_step(log_exceptions=False)%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%20528,%20in%20_async_step%0A%20%20%20%20self._handle_exception(%0A%20%20%20%20~~~~~~~~~~~~~~~~~~~~~~%5E%0A%20%20%20%20%20%20%20%20ex,%20continue_on_error,%20self._log_exceptions%20or%20log_exceptions%0A%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20%20%20)%0A%20%20%20%20%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%20558,%20in%20_handle_exception%0A%20%20%20%20raise%20exception%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%20526,%20in%20_async_step%0A%20%20%20%20await%20getattr(self,%20handler)()%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%20764,%20in%20_async_call_service_step%0A%20%20%20%20response_data%20=%20await%20self._async_run_long_action(%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20%20%20...%3C9%20lines%3E...%0A%20%20%20%20)%0A%20%20%20%20%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/script.py%22,%20line%20727,%20in%20_async_run_long_action%0A%20%20%20%20return%20await%20long_task%0A%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/core.py%22,%20line%202795,%20in%20async_call%0A%20%20%20%20response_data%20=%20await%20coro%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/core.py%22,%20line%202838,%20in%20_execute_service%0A%20%20%20%20return%20await%20target(service_call)%0A%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/service.py%22,%20line%201006,%20in%20entity_service_call%0A%20%20%20%20single_response%20=%20await%20_handle_entity_call(%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20%20%20%20%20%20%20hass,%20entity,%20func,%20data,%20call.context%0A%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20%20%20)%0A%20%20%20%20%5E%0A%20%20File%20%22/usr/src/homeassistant/homeassistant/helpers/service.py%22,%20line%201078,%20in%20_handle_entity_call%0A%20%20%20%20result%20=%20await%20task%0A%20%20%20%20%20%20%20%20%20%20%20%20%20%5E%5E%5E%5E%5E%5E%5E%5E%5E%5E%0A%20%20File%20%22/config/custom_components/mypyllant/climate.py%22,%20line%20567,%20in%20set_time_program%0A%20%20%20%20await%20self.coordinator.api.set_zone_time_program(%0A%20%20%20%20%20%20%20%20self.zone,%20program_type,%20time_program%0A%20%20%20%20)%0A%20%20File%20%22/usr/local/lib/python3.13/site-packages/myPyllant/api.py%22,%20line%20804,%20in%20set_zone_time_program%0A%20%20%20%20await%20self.aiohttp_session.patch(%0A%20%20%20%20...%3C3%20lines%3E...%0A%20%20%20%20)%0A%20%20File%20%22/usr/local/lib/python3.13/site-packages/myPyllant/http_client.py%22,%20line%20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[guglez]

Same issue here. I tried to change polling intervals but it seems that those settings have no effect:

[zaubara]

After I increased the interval to a quite ridiculous amount to avoid 401 errors (the API limit one) - that's 10800 seconds - the request count finally did drop:

However, I was thinking that my large interval somehow leads to the 401 error on all other requests. I noticed that I also cannot, for instance, change the water heater from time controlled to cylinder boost, so it's not isolated to the mentioned API.
I was hoping that, with a reasonable interval, the token gets refreshed correctly - but I think that's not connected.

Here's my guess, without having a look at the API: Vaillant uses OAuth and we have a (long lived) refresh token and a (short lived) access token. Some update probably broke the token refresh process after the access token is expired.
Case in point: I added an automation that refreshes the myVAILLANT plugin, before my other automations run - and that makes the rest of the automations work. Here's the script, if anyone needs it until this gets fixed - just edit the trigger and the entry_id to your needs:

alias: Refresh myPyllant
description: ""
triggers:
  - trigger: time
    at: "15:00:00"
conditions: []
actions:
  - action: homeassistant.reload_config_entry
    data:
      entry_id: 123412341234123412341234
mode: single
 

[guglez]

@zaubara request count dropped because you restarted the integration and not because the rate lowered.

[zaubara]

No, the requests per hour dropped overall. Yes, they reset to 0 after the restart - but that's not what I'm talking about. Here's a longer view: