# FREE Strategy Call with Triken with Vignesh Ilangovan

> 🧭 About this call This is a short 30-minute call to get a high-level understanding of your product and what you’re trying to communicate. We’ll walk through how the Product Story Mapping session would apply in your case, and whether it makes sense as a next step. There’s no pitch and no pressure — just a straightforward conversation. 📄 Before the call (optional) If you have any materials (deck, document, video), feel free to share them in advance. We’ll use them only as context. 🎁 Bonus You’ll also receive the Product Explanation Audit Checklist — a simple framework you can use to think through your product explanation.

- Host: Vignesh Ilangovan
- Duration: 30 min
- Location: Cal Video
- Host time zone: Asia/Singapore
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/trikenstudios/free-strategy-call-with-vignesh
- Event type id: 5307883

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=5307883&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": 5307883,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "WhatsApp-Number": "…",
    "Company-and-Industry": "…",
    "What-prompted-you-to-book-this-call": "…",
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address), `WhatsApp-Number` (WhatsApp or Phone Number), `Company-and-Industry` (Company and Industry?), `What-prompted-you-to-book-this-call` (What prompted you to book this call?)
- Optional fields: `notes` (Additional notes), `guests` (Add guests)
- `name` and `email` go in `attendee` and `guests` is a list of emails; every other field goes in `bookingFieldsResponses` under its name.