Sign in with Fades errors

When something goes wrong, the user is sent back to your redirect URL with an error parameter, or the token endpoint returns one.

Common errors

• invalid_request: a required parameter is missing or malformed.
• invalid_client: the client ID or secret is wrong.
• invalid_grant: the code has expired, was already used, or doesn't match your redirect URL or PKCE verifier. Start the flow again.
• redirect_uri_mismatch: the redirect URL isn't registered exactly as you sent it. See Register an app.
• access_denied: the user chose not to approve. Handle this gracefully in your UI.
• invalid_scope: you asked for a scope that doesn't exist.

For general HTTP errors, see API errors and status codes.