Automate Google Calendar & Klaviyo

Stop paying for mismatched spreadsheets. Sync data between Google Calendar and Klaviyo in real-time, so you can manage your operations without the busywork.

Get This Workflow Built

Custom API Integration

Secure Data Transfer

Done-For-You Setup

How the Data Flows

graph LR
    subgraph Source ["Google Calendar"]
        T1(["Event Cancelled"])
    end
    
    subgraph Middleware ["Enterprise Integration Core"]
        W[CRON API
Poller] --> V{Validation
& Auth}
        V -->|Fail| DLQ[Dead Letter
Queue]
        V -->|Pass| Map[Data Mapping
& Transformation]
        Map --> Retry[Rate Limiting
& Retries]
    end
    
    subgraph Target ["Klaviyo"]
        A1(["Add Profile to List"])
    end

    T1 -->|JSON Payload| W
    Retry -->|Authenticated API POST| A1

    style Source fill:transparent,stroke:#cbd5e1,stroke-dasharray: 5 5
    style Target fill:transparent,stroke:#cbd5e1,stroke-dasharray: 5 5
    style Middleware fill:#f8fafc,stroke:#94a3b8,stroke-width:2px
    style T1 fill:#3b82f6,stroke:#fff,stroke-width:2px,color:#fff
    style W fill:#1f2937,stroke:#fff,stroke-width:1px,color:#fff
    style V fill:#1f2937,stroke:#fff,stroke-width:1px,color:#fff
    style Map fill:#1f2937,stroke:#fff,stroke-width:1px,color:#fff
    style Retry fill:#1f2937,stroke:#fff,stroke-width:1px,color:#fff
    style DLQ fill:#ef4444,stroke:#fff,stroke-width:1px,color:#fff
    style A1 fill:#e11d48,stroke:#fff,stroke-width:2px,color:#fff

When Google Calendar events are not integrated with Klaviyo, marketing teams often face the challenge of missing out on critical event data for their campaigns. For instance, if a webinar is scheduled in Google Calendar but not reflected in Klaviyo, the marketing team may end up sending promotional emails to the wrong audience or failing to notify registrants about changes. This leads to manual data entry of attendee lists into Klaviyo, consuming hours of valuable time that could be better spent on strategy and content creation.

Top Ways to Automate Google Calendar & Klaviyo

Automated Event Reminders: Automatically send personalized email reminders to attendees via Klaviyo based on events scheduled in Google Calendar, ensuring higher attendance rates and improved customer engagement.
Dynamic Campaign Triggers: Create targeted marketing campaigns that trigger automatically when new events are added to Google Calendar, allowing you to promote relevant content and drive engagement in real-time.
Centralized Reporting: Consolidate event attendance data from Google Calendar into Klaviyo for comprehensive reporting, enabling better analysis of campaign effectiveness and customer interactions.

How to Build the Google Calendar → Klaviyo Sync

Set up a webhook in Google Calendar to listen for the 'event.created' trigger. This will notify you whenever a new event is created.
Configure the webhook to send a POST request to your integration endpoint with the following payload: { "eventId": "{{id}}", "eventTitle": "{{summary}}", "startTime": "{{start.dateTime}}", "endTime": "{{end.dateTime}}" }.
On your integration server, capture the incoming webhook data. Extract the necessary fields: eventId, eventTitle, startTime, and endTime.
Use the Klaviyo API to insert a new event by making a POST request to https://a.klaviyo.com/api/events/. Include the extracted data in the payload: { "data": { "type": "event", "attributes": { "metric": { "name": "Webinar Registration" }, "properties": { "eventId": "{{eventId}}", "eventTitle": "{{eventTitle}}", "startTime": "{{startTime}}", "endTime": "{{endTime}}" } } } }.

Developer Warnings & API Gotchas

Ensure that the 'start.dateTime' and 'end.dateTime' fields are in ISO 8601 format when sending to Klaviyo, as incorrect formatting can lead to data rejection.
Be cautious of duplicate events; if the same event is created multiple times in Google Calendar, your integration should check for existing entries in Klaviyo to prevent duplication.
Verify that the Klaviyo API key has sufficient permissions to create events; insufficient permissions can result in failed API calls without clear error messages.

Supported API Operations

We leverage official, stable endpoints to ensure secure data transfer. No deprecated legacy routes.

When this happens in Google Calendar... Event Cancelled

Do this in Klaviyo Add Profile to List
When this happens in Google Calendar... Event Ended

Do this in Klaviyo Add Tag to List
When this happens in Google Calendar... Event Ended (Legacy)

Do this in Klaviyo Add Tag to Segment
When this happens in Google Calendar... Event Start

Do this in Klaviyo Create Event
When this happens in Google Calendar... Fetch Custom Actions

Do this in Klaviyo Create List

SyncMatrix Experts

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I can see you're looking at mapping Google Calendar to Klaviyo. Tell me about your current setup—what's the specific bottleneck you're trying to automate right now?