Integrating Google Assistant SDK with HA ends up in “Access blocked: This app’s request is invalid”

[dbenyakar]

I tried to integrate google assistant SDK into home assistant using existing OAuth client ID and secret. By mistake I entered wrong credentials and now I get:

“Access blocked: This app’s request is invalid” Error 400: redirect_uri_mismatch

When I go back to the home assistant → Add integration section and re-add Google Assistant SDK again, I no longer have the Add Credentials wizard to fill the OAuth Client ID and the secret but I get the page below.

I seems my account need to be re-granted authorization somehow in order to be authorized again.

How do I solve this?