Hi, we have the same problem reported in following link https://community.viessmann.de/t5/The-Viessmann-API/Developer-Portal-Error-Your-Clients-Kann-keinen-Client-erstellen/td-p/336021 (“Client data could not be loaded). A new client therefore cannot be loaded. Please fix it on account cda4usrl.004@gmail.com, thank you.
... Mehr anzeigen
