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Automate HubSpot & Klaviyo

Stop paying for mismatched spreadsheets. Sync data between HubSpot 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 ["HubSpot"]
        T1(["All Forms List"])
    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 Hubspot and Klaviyo operate independently, the marketing team often misses critical lead information. For instance, when a new contact is added in Hubspot, the marketing team has to manually enter that data into Klaviyo, risking data entry errors and delays in campaign targeting. This results in missed opportunities for timely engagement, as promotional emails may be sent to outdated contact lists, leading to lower conversion rates and wasted marketing resources.

Top Ways to Automate HubSpot & Klaviyo

  • Automated Lead Nurturing: Seamlessly transfer leads from HubSpot to Klaviyo, allowing for targeted email campaigns based on real-time engagement and behavior, ensuring no lead is left behind.
  • Dynamic Customer Segmentation: Automatically sync customer data between HubSpot and Klaviyo to create highly personalized segments, enabling tailored marketing strategies that resonate with specific audience needs.
  • Real-Time Performance Tracking: Integrate analytics from both platforms to monitor campaign performance in real-time, allowing for quick adjustments and data-driven decision-making to optimize marketing efforts.

How to Build the HubSpot → Klaviyo Sync

  1. In Hubspot, navigate to the 'Workflows' section and set up a new workflow that triggers on the 'Contact Created' event.
  2. Configure the workflow to send a webhook to your designated endpoint when a new contact is created. The webhook should include the following payload: { "email": "{{contact.email}}", "first_name": "{{contact.firstname}}", "last_name": "{{contact.lastname}}" }.
  3. Set up a server to listen for incoming webhooks at the specified endpoint (e.g., https://yourserver.com/hubspot-webhook).
  4. In your server code, extract the 'email', 'first_name', and 'last_name' from the incoming payload.
  5. Construct a POST request to Klaviyo's API endpoint https://a.klaviyo.com/api/v1/people/ with the following JSON body: { "data": { "type": "person", "attributes": { "email": "[email]", "first_name": "[first_name]", "last_name": "[last_name]" } } }, replacing placeholders with the extracted values.
  6. Include your Klaviyo API key in the request headers: { "Authorization": "Klaviyo-API-Key your_api_key" }.
  7. Test the integration by creating a new contact in Hubspot and verifying that the data appears correctly in Klaviyo.

Developer Warnings & API Gotchas

  • Ensure that the email field is properly validated before sending to Klaviyo; invalid email formats can cause the API to reject the request.
  • Be cautious about handling duplicate contacts in Klaviyo; if a contact already exists, the API will not create a new entry, which could lead to missing updates.
  • Watch for differences in how Hubspot and Klaviyo handle name formatting; ensure that first and last names are correctly mapped to avoid confusion in your marketing campaigns.

Supported API Operations

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

  • When this happens in HubSpot... All Forms List
    Do this in Klaviyo Add Profile to List
  • When this happens in HubSpot... CRM Object Property Recently Updated
    Do this in Klaviyo Add Tag to List
  • When this happens in HubSpot... CRM Object Recently Created
    Do this in Klaviyo Add Tag to Segment
  • When this happens in HubSpot... CRM Object Recently Updated
    Do this in Klaviyo Create Event
  • When this happens in HubSpot... Company Recently Created or Updated
    Do this in Klaviyo Create List

SyncMatrix Experts

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