SyncMatrix.
Klaviyo logo + ActiveCampaign logo

Automate Klaviyo & ActiveCampaign

Stop paying for mismatched spreadsheets. Sync data between Klaviyo and ActiveCampaign 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 ["Klaviyo"]
        T1(["Fetch Custom Actions"])
    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 ["ActiveCampaign"]
        A1(["Add Contact Note"])
    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 Klaviyo and ActiveCampaign operate independently, customer engagement data fails to synchronize, leading to missed opportunities. For instance, if a customer subscribes to a newsletter in Klaviyo, that information does not automatically populate in ActiveCampaign, resulting in the marketing team manually entering subscriber details into ActiveCampaign. This manual entry not only wastes valuable time but also increases the risk of human error, such as duplicating contacts or entering incorrect information, which can confuse future marketing efforts.

Top Ways to Automate Klaviyo & ActiveCampaign

  • Automated Lead Nurturing: Streamline your lead nurturing process by automatically transferring leads from Klaviyo to ActiveCampaign, ensuring timely follow-ups and personalized communication that drives engagement.
  • Unified Customer Profiles: Create a comprehensive view of customer interactions by syncing data between Klaviyo and ActiveCampaign, allowing for more targeted marketing strategies and improved customer segmentation.
  • Performance Tracking and Reporting: Gain insights into campaign effectiveness by consolidating analytics from both platforms, enabling data-driven decisions that enhance marketing ROI and optimize future campaigns.

How to Build the Klaviyo → ActiveCampaign Sync

  1. In Klaviyo, create a new webhook by navigating to 'Account' > 'Webhooks' > 'Create Webhook'. Set the trigger to 'Subscribe to List'.
  2. Configure the webhook to POST to the ActiveCampaign API endpoint: https://.api.activecampaign.com/api/3/contact/sync.
  3. In the webhook settings, ensure the payload includes the necessary fields: email, first_name, and last_name from Klaviyo.
  4. In ActiveCampaign, ensure the contact fields are correctly mapped to receive the data from Klaviyo. The email field must be set as the unique identifier.
  5. Test the integration by subscribing a test email in Klaviyo and check if it appears in ActiveCampaign without manual entry.

Developer Warnings & API Gotchas

  • Ensure that the email field in Klaviyo matches the format expected by ActiveCampaign; any discrepancies can lead to failed inserts.
  • Be cautious of the data type for first_name and last_name; if these fields are not formatted as strings, ActiveCampaign may reject the payload.
  • Watch for the webhook firing multiple times for a single subscription event in Klaviyo, which can create duplicate contacts in ActiveCampaign if not handled correctly.

Supported API Operations

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

  • When this happens in Klaviyo... Fetch Custom Actions
    Do this in ActiveCampaign Add Contact Note
  • When this happens in Klaviyo... Get List
    Do this in ActiveCampaign Add Contact to Account
  • When this happens in Klaviyo... Get Metric
    Do this in ActiveCampaign Add Deal Pipeline
  • When this happens in Klaviyo... Get Tag
    Do this in ActiveCampaign Add Deal Stage
  • When this happens in Klaviyo... New Campaign
    Do this in ActiveCampaign Add Deal Task Type

SyncMatrix Experts

Available for Hire

We are an AI-powered automation team. We build custom, reliable API workflows that eliminate manual data entry.

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We build custom API workflows that don't hit rate limits.

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