Synchronize Events & Attendees Between KlickTipp and Google Calendar

Community Node Disclaimer: This workflow uses KlickTipp community nodes.

Introduction This workflow creates a complete two-way synchronization between KlickTipp and Google Calendar.
When a contact in KlickTipp is tagged, an event is automatically created in Google Calendar.
If event status changes or if attendees respond, their RSVP status and event status are reflected in KlickTipp — keeping your contact database, campaigns, and event insights always up to date.

Perfect for marketers, coaches, or event organizers who want to automatically send event invites and instantly capture participation status without manual updates.

How it works Google Calendar → KlickTipp: This template keeps your KlickTipp list in sync with Google Calendar across the full event lifecycle.
For each attendee, the workflow optionally filters out internal domains, then writes event details into KlickTipp custom fields. It watches your calendar for: Event Created* → creates/updates each attendee as a KlickTipp contact and adds the event created/updated tag. Event Cancelled → tags attendees with event canceled. Event Updated → routes attendees by responseStatus* and tags them: accepted → event confirmed declined → event declined tentative → event considered

KlickTipp → Google Calendar: Watches for a tag like “Send an event invitation via Google Calendar”. Creates an event in Google Calendar using mapped KlickTipp fields.

Setup Instructions KlickTipp Preparation Prepare custom fields Google Calendar | event summary, data type: "Single line" Google Calendar | event description, data type: "Single line" Google Calendar | event location, data type: "Single line" Google Calendar | event start datetime, data type: "Datetime" Google Calendar | event end datetime, data type: "Datetime" Prepare tags: Google Calendar | event created/updated Google Calendar | event canceled Google Calendar | event declined Google Calendar | event confirmed
Google Calendar | event considered Send an event invitation via Google Calendar Prepare outbound: Activation tag: Send an event invitation via Google Calendar Activation URL: webhook URL from trigger

Credential Configuration Connect your Google Calendar account using Client ID and Client Secret from the Google Cloud. Authenticate your KlickTipp connection with username/password credentials (API access required).

Customization Recommended poll frequency: every 1–5 minutes for near real-time updates. Adjust to your local timezone if necessary.
Each trigger works independently, allowing partial deployments if only certain event types are needed.
Ensure End > Start in your data. If you prefer a fixed duration, compute End from Start + minutes in a Date & Time node.
If you want a Meet link, enable “Add Google Meet video conferencing” in the Calendar node instead of pasting a Calendar URL into Location.