GET request - androidpublisher.googleapis.com/androidpublisher/v3/ - throws 403 "The caller does not have permission"

HttpGet request - using HttpWebRequest

https://androidpublisher.googleapis.com/androidpublisher/v3/applications/{packageName}/reviews

Getting 403 forbidden exception - The caller does not have permission

Params -

• {access_token} - Generated token from Google OAuth
• {packageName} - 'com.facebook.orca'

Sample request - https://androidpublisher.googleapis.com/androidpublisher/v3/applications/com.facebook.orca/reviews?access_token={token}

Response -

{
  "error": {
    "code": 403,
    "message": "The caller does not have permission",
    "status": "PERMISSION_DENIED"
  }
}

Reference - https://developers.google.com/android-publisher/api-ref/rest/v3/reviews/list

Stackoverflow - Google Sheets API returns "The caller does not have permission" when using server key