0 I'm trying to to a request to the Google Calendar API using Postman. Following this Google documentation: https://developers.google.com/calendar/v3/reference/?apix=true I'm doing a: GET https://www.googleapis.com/calendar/v3/calendars/{my_calendar_id_here} On the Postman Authorization tab i'm specifying that i want to use OAuth 2.0 and i also put my access token (which i use to make Calendar API calls from code, works fine). However, Postman responds with the following body: { "error": { "code": 401, "message": "Request had invalid authentication credentials. Expected OAuth 2 access token, login cookie or other valid authentication credential. See https://developers.google.com/identity/sign-in/web/devconsole-project.", "errors": [ { "message": "Invalid Credentials", "domain": "global", "reason": "authError", ...