# 15-Min Intro Call with Terry McCullagh

> A direct 15-minute conversation with senior M365 architect Terry McCullagh to discuss your business tool needs and determine if the engineering subscription is the right fit. What we'll cover on this call: • Your current bottlenecks (fragile spreadsheets, manual approvals, or disorganized folders) • Focus areas: How we build and streamline tools using Microsoft Teams, SharePoint, and Power Apps (Note: We specialize strictly in internal M365 tools and do not support Dynamics 365 Sales or Finance) • How the $3,500/month subscription works (one active request at a time, pause or cancel anytime) • Month 1 kickoff: Full tenant audit & stabilization sprint, or starting straight on your top priority app/flow • Direct Q&A with no sales decks or agency overhead Please pick a time that works best for you. Once scheduled, a calendar invite with a Microsoft Teams link will be sent automatically.

- Host: Terry McCullagh
- Duration: 15 min
- Location: MS Teams
- Host time zone: America/Chicago
- Confirmation: Bookings are confirmed instantly.
- Booking page: https://cal.com/tmccull2/introcall
- Event type id: 6988891

## Check availability

```http
GET https://api.cal.com/v2/slots?eventTypeId=6988891&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": 6988891,
  "start": "<UTC ISO 8601 start from the slots response>",
  "attendee": {
    "name": "…",
    "email": "…",
    "timeZone": "<IANA time zone>"
  },
  "guests": [
    "guest@example.com"
  ],
  "bookingFieldsResponses": {
    "notes": "…"
  }
}
```

- Required fields: `name` (Your name), `email` (Email address)
- 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.