I am trying to upgrade my appointments calendar.
I have entered the client and secret keys, but get a 404 when trying to get the access code.
Here is the error.
400. That’s an error.
You can email the developer of this application at: xxxx
The redirect URI in the request, urn:ietf:wg:oauth:2.0:oob, can only be used by a Client ID for native application. It is not allowed for the 'WEB' client type. You can create a Client ID for native application at https://console.developers.google.com/apis/credentials/oauthclient
Thanks in advance for advice on this.