Since the 3 april I can't get the value through the API - "Client does not exist"

Lorent — Fri, 25 Apr 2025 22:25:55 GMT

Hello everyone,

I've been retrieving my data via a node-red flow for over a year now. Unfortunately, I've noticed that since the 4th March, no more data has been retrieved, even though I haven't changed anything in my configuration.

When I try to retrieve information, I get the following message:

{
"viErrorId": "|abd823a0-46441fbb85b2488b.",
"errorType": "EVEREST_ERROR",
"message": "",
"extendedPayload": {
"code": "404",
"reason": "Client does not exist"
}
}

While searching the forum, I saw that another user had the same problem and that this problem was located internally at Viessmann side.

Could you help me ?

Re: Since the 3 april I can't get the value through the API - "Client does not exist"

CustomerCareMichael — Wed, 30 Apr 2025 16:00:23 GMT

Hi @Lorent ,

could you share your client ID with which you try to use the API? Also, please share your user name. You can send me both via DM here in the forum.

Regards,

Michael

Thema "Re: Since the 3 april I can't get the value through the API - "Client does not exist"" in The Viessmann API

Since the 3 april I can't get the value through the API - "Client does not exist"

Re: Since the 3 april I can't get the value through the API - "Client does not exist"