Félix Malfait
0e22ae0521
## Context Twenty can import calendar events and send emails, but cannot create calendar events. This adds calendar event creation on connected **Google** and **Microsoft** accounts, mirroring the existing email-send architecture (`message-outbound-manager`). ## What it adds The capability is exposed three ways, all backed by the same composer → driver → persist pipeline: - **GraphQL mutation** `createCalendarEvent` (metadata API) - **AI agent tool** `create_calendar_event` (flows to MCP automatically), gated by a new `CREATE_CALENDAR_EVENT_TOOL` permission flag - **Workflow builder node** "Create Calendar Event" in the **Core** section, with a full settings form (variable interpolation supported) CalDAV/IMAP is intentionally out of scope for now (different long pole). ## Design notes - **Reuse over reinvention** — the created event is run through the existing inbound formatters (`formatGoogleCalendarEvents` / `formatMicrosoftCalendarEvents`) and persisted immediately via the existing `CalendarSaveEventsService`, so it appears in Twenty right away and is reconciled by the next provider sync (dedup on external id). Persistence is best-effort. - **OAuth scopes** — Google already requests `calendar.events` (read+write), so no change there. Microsoft moves `Calendars.Read` → `Calendars.ReadWrite`; existing Microsoft accounts must re-consent (surfaced as a clear "reconnect" error via a missing-scope check). - **Deliberate invitation semantics** — `sendInvitations` is off by default. When off, the event is created with **no attendees** on either provider, so creating an event never silently emails external people. When on, attendees are attached and notified (Google `sendUpdates: all`, Microsoft's default). This sidesteps Microsoft Graph having no per-request suppression. - **Timezone correctness** — Microsoft Graph interprets `dateTime` as wall-clock in the supplied `timeZone` and ignores the offset, so the absolute instant is converted to its wall-clock form before sending (Google honors the offset directly). Both providers end up scheduling the same instant. - **Conferencing** — optional Google Meet (`conferenceData.createRequest`, with a follow-up `events.get` to resolve the async link) / Microsoft Teams (`isOnlineMeeting`). - Attendees are a comma-separated string everywhere (tool input, GraphQL DTO, workflow input), consistent with `send_email` recipients; the composer parses to its internal list. ## Test plan - **Unit**: 45 tests covering the composer (validation, all-day boundaries, offset enforcement, timezone, scope checks, default-account resolution), both provider drivers, the dispatcher, and the workflow step-log builder. - **Integration**: `createCalendarEvent` on the `/metadata` API fails closed with a structured error for a non-existent account (the auth/ownership/validation path that doesn't require provider mocking). - **Manual**: verified the workflow node appears in the Core section, the settings form renders and round-trips (edit → autosave → reload), and the live mutation returns a structured failure for a bogus account. ## Open question for reviewers The metadata mutation `createCalendarEvent` shares a name with the core schema's auto-generated `createCalendarEvent(data:)` CRUD mutation for the CalendarEvent object — they live on different endpoints (`/metadata` vs `/graphql`) so there's no runtime conflict, but it's a potential point of confusion for API consumers. Happy to rename (e.g. `createCalendarEventOnConnectedAccount`) if preferred. ## Out of scope / follow-ups - CalDAV/IMAP support - Event update/delete and recurrence - Existing Microsoft accounts need re-consent for the widened scope <!-- This is an auto-generated description by cubic. --> <a href="https://cubic.dev/pr/twentyhq/twenty/pull/22231?utm_source=github" target="_blank" rel="noopener noreferrer" data-no-image-dialog="true"><picture><source media="(prefers-color-scheme: dark)" srcset="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"><source media="(prefers-color-scheme: light)" srcset="https://www.cubic.dev/buttons/review-in-cubic-light.svg"><img alt="Review in cubic" src="https://www.cubic.dev/buttons/review-in-cubic-dark.svg"></picture></a> <!-- End of auto-generated description by cubic. --> --------- Co-authored-by: neo773 <neo773@protonmail.com>
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Why Twenty
Twenty gives technical teams the building blocks for a custom CRM that meets complex business needs and quickly adapts as the business evolves. Twenty is the CRM you build, ship, and version like the rest of your stack.
Learn more about why we built Twenty
Installation
Cloud
The fastest way to get started. Sign up at twenty.com and spin up a workspace in under a minute, with no infrastructure to manage and always up to date.
Build an app
Scaffold a new app with the Twenty CLI:
npx create-twenty-app my-app
Define objects, fields, and views as code:
import { defineObject, FieldType } from 'twenty-sdk/define';
export default defineObject({
nameSingular: 'deal',
namePlural: 'deals',
labelSingular: 'Deal',
labelPlural: 'Deals',
fields: [
{ name: 'name', label: 'Name', type: FieldType.TEXT },
{ name: 'amount', label: 'Amount', type: FieldType.CURRENCY },
{ name: 'closeDate', label: 'Close Date', type: FieldType.DATE_TIME },
],
});
Then ship it to your workspace:
npx twenty app:publish --private
See the app development guide for objects, views, agents, and logic functions.
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Run Twenty on your own infrastructure with Docker Compose, or contribute locally via the local setup guide.
Everything you need
Twenty gives you the building blocks of a modern CRM (objects, views, workflows, and agents) and lets you extend them as code. Here's a tour of what's in the box.
Want to go deeper? Read the 
User Guide for product walkthroughs, or the Documentation for developer reference.
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