Update Override

mutation{
  updateOverride(ID:4467,input:{
    reason:"another reason"
  }){
    ID,
    scheduleID,
    startTime,
    endTime,
    overrideWith{
      participants{
        type,
        ID
      }
    },
    reason
  }
}

Response:

{
  "data": {
    "updateOverride": {
      "ID": 4467,
      "scheduleID": 9054,
      "startTime": "2023-05-09T00:00:00Z",
      "endTime": "2023-05-11T00:00:00Z",
      "overrideWith": {
        "participants": [
          {
            "type": "user",
            "ID": "60f12dd3814bef0008c4036e"
          }
        ]
      },
      "reason": "another reason"
    }
  }
}