Automate Gmail & Klaviyo

Stop paying for mismatched spreadsheets. Sync data between Gmail 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 ["Gmail"]
        T1(["List Aliases"])
    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 Gmail and Klaviyo operate independently, critical customer interactions can slip through the cracks. For instance, if a customer replies to an email campaign in Gmail, that engagement data isn't captured in Klaviyo, leading to missed opportunities for personalized follow-ups. The marketing team may spend hours manually tracking these responses and updating customer profiles, which not only wastes time but also risks inaccuracies in customer segmentation and targeting.

Top Ways to Automate Gmail & Klaviyo

Automated Contact Sync: Effortlessly sync contacts from Gmail to Klaviyo, ensuring your email lists are always up-to-date and accurate, eliminating manual data entry errors.
Engagement Tracking: Automatically track email interactions in Gmail and segment your audience in Klaviyo based on engagement metrics, allowing for targeted marketing campaigns that resonate with your customers.
Follow-Up Automation: Set up automated follow-up sequences in Klaviyo triggered by specific actions taken in Gmail, ensuring timely communication and enhancing customer relationships without additional workload.

How to Build the Gmail → Klaviyo Sync

In Gmail, set up a standard webhook that triggers on new email replies. Configure the webhook to listen for the 'message.reply' event.
Extract the relevant payload data from the webhook, focusing on fields such as 'from', 'to', 'subject', and 'body'.
Format the extracted data into a JSON object that matches Klaviyo's API requirements for customer engagement data.
Use the Klaviyo REST API endpoint https://a.klaviyo.com/api/v1/metrics/timeline to POST the formatted JSON object. Ensure to include your API key in the request header for authentication.
Map the 'from' field to Klaviyo's 'email' property, 'subject' to 'event_name', and 'body' to 'properties.message_content'.

Developer Warnings & API Gotchas

Ensure that the 'from' email address in Gmail matches the email address format expected by Klaviyo; otherwise, the data may not associate correctly with existing profiles.
Be cautious with the 'body' field; if it contains HTML, you may need to sanitize it before sending to avoid parsing errors in Klaviyo.
Double-check the event naming conventions in Klaviyo to ensure that the 'event_name' you are using aligns with existing metrics; otherwise, the data may not be logged correctly.

Supported API Operations

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

When this happens in Gmail... List Aliases

Do this in Klaviyo Add Profile to List
When this happens in Gmail... List Contact Groups

Do this in Klaviyo Add Tag to List
When this happens in Gmail... List Messages

Do this in Klaviyo Add Tag to Segment
When this happens in Gmail... New Attachment

Do this in Klaviyo Create Event
When this happens in Gmail... New Conversation

Do this in Klaviyo Create List

SyncMatrix Experts

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