I’m trying to integrate Home Connect and my dishwasher to Home assistant, I followed tuto Home Connect - Home Assistant and everything is fine but when I click on “add integration” then search for Home Connect and click on “Open website” a new tab appears (with the following message:
Yes, now that you mention it, I first tried with my email address and now I don’t have to fill the client ID so I can’t change it to the client ID from Applications page in Home Connect. I have no idea how to get another chance to fill it correctly.
You may have old credentials causing problems. Go into Settings > Devices & services > 3-dots > Application Credentials, and delete them if they’re there. Then retry.