I'm trying to remove some attendees from a Google Calendar Event, which relates to a room resource calendar, while using the tool on the API documentation [Try It API Explorer](https://developers.google.com/google-apps/calendar/v3/reference/events/patch#try-it), properly authorized using a domain admin account which has admin rights over that calendar, 

I'm sending a request body deleting two attendees from the event, the API results is 200 OK, but the attendees remains there.. 

I've tried to add a new attendee or updating it's status and it works ok, but not for removing the attendee..

Any body know what I'm missing here? I've also tried using this through GAS and I'm experiencing the same issue, but to discard any self programming issue I've tried with the official API Try It tool

**Request**

```
PATCH
https://www.googleapis.com/calendar/v3/calendars/supportworld.com.ar_34373XXXXXXXXXXX2%40resource.calendar.google.com/events/osrd3lXXXXXXXolks?fields=attendees%2Cid&key={YOUR_API_KEY}

Content-Type:  application/json
Authorization:  Bearer ya29.bwAXXXXXXXXJOeCUAAADDYWT-QXXXXXXXXXXrc_eGP6Lk7CXXXXXXXXJ6130__ci_-_YXXXXxs
X-JavaScript-User-Agent:  Google APIs Explorer

{
 "attendees": [
  {
   "organizer": true,
   "email": "xxxxx@netuxxxxxxrp.com",
   "responseStatus": "accepted",
   "displayName": "AAAAAAA"
  },
  {
   "self": true,
   "resource": true,
   "email": "supportworld.com.ar_34373XXXXXXXXXXX2@resource.calendar.google.com",
   "responseStatus": "accepted",
   "displayName": "Cafetera"
  }
 ],
 "id": "osrd3lXXXXXXXolks
"
}

```

**Response**

```
200 OK

cache-control:  no-cache, no-store, max-age=0, must-revalidate
content-encoding:  gzip
content-length:  294
content-type:  application/json; charset=UTF-8
date:  Thu, 28 Aug 2014 16:15:06 GMT
etag:  "XXXXXXXXX"
expires:  Fri, 01 Jan 1990 00:00:00 GMT
pragma:  no-cache
server:  GSE

{
 "id": "osrd3lids0gkoeaggp2c95olks",
 "attendees": [
  {
   "email": "xxxxx@netuxxxxxxrp.com",
   "displayName": "AAAAAAA",
   "organizer": true,
   "responseStatus": "accepted"
  },
  {
   "email": "yyyyy@netuxxxxxxrp.com",
   "displayName": "YYYYYYY",
   "responseStatus": "accepted"
  },
  {
   "email": "zzzzz@netuxxxxxxrp.com",
   "displayName": "BBBBBB",
   "responseStatus": "needsAction"
  },
  {
   "email": "supportworld.com.ar_34373XXXXXXXXXXX2@resource.calendar.google.com",
   "displayName": "Cafetera",
   "self": true,
   "resource": true,
   "responseStatus": "accepted"
  }
 ]
}

```

the entries:

```
{
   "email": "yyyyy@netuxxxxxxrp.com",
   "displayName": "YYYYYYY",
   "responseStatus": "accepted"
  },
  {
   "email": "zzzzz@netuxxxxxxrp.com",
   "displayName": "BBBBBB",
   "responseStatus": "needsAction"
  }

```

shouldn't be there any more, but they are.. any help on this appreciated,