I followed the guide to setup Google Drive for backups. I created client ID and secret, then added the integration. In the last step, you need to go to a Google page to establish the link. Here, I get the following error:
You can’t sign in to this app because it doesn’t comply with Google’s OAuth 2.0 policy for keeping apps secure.
It’s a pity noboby has an idea, I thought that’s a pretty much straightforward use-case. Anyhow, I gave up after more debugging without success Instead, I‘m using the third party addon ‚Home Assistant Google Drive Backup’ now. It worked out of the box.
unless you disabled the my integration, you need to use the callback url exactly as provided in the instructions. https://my.home-assistant.io/redirect/oauth
You have provided http://homeassistant.local:8123/auth/external/callback
As I had the impression some redirecting is the problem, I tried with different browsers. Chrome and Firefox on my desktop, then also via the app and Safari. But as mentioned without success, unfortunately.