# GXD | Book time with an expert with Sean Harrison-Smith

> Let’s talk about what you need Salesforce to do. A 30-minute conversation with Sean Harrison-Smith, Salesforce architect and founder of GXD. Talk through your current situation, the decisions ahead and where expert support could help. You don’t need a finished brief or to know which service you need. Please do not include confidential client information, sensitive personal data or Salesforce credentials.

- Host: Sean Harrison-Smith
- Duration: 30 min
- Location: Cal Video
- Host time zone: Europe/London
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/sean-harrison-smith-dmc60v/gxd-conversation
- Event type id: 7516176

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=7516176&start=YYYY-MM-DD&end=YYYY-MM-DD&timeZone=<IANA time zone>
cal-api-version: 2024-09-04
```

The response is `{"data":{"YYYY-MM-DD":[{"start":"<ISO 8601 with offset>"}]}}`; no API key is needed.

## Book

```http
POST https://api.cal.com/v2/bookings
cal-api-version: 2026-02-25
Content-Type: application/json

{
  "eventTypeId": 7516176,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "organisation": "…",
    "notes": "…",
    "offer": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `organisation` (Organisation)
- Optional fields: `notes` (What would you like to achieve or understand?), `guests` (Add guests), `offer` (Service of interest (optional))
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.