Automate Klaviyo & Trello

Stop paying for mismatched spreadsheets. Sync data between Klaviyo and Trello 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 ["Trello"]
        A1(["Add Attachment to Card"])
    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 Trello are not integrated, marketing teams often face significant delays in project execution. For instance, when a new email campaign is launched in Klaviyo, the corresponding tasks in Trello must be created manually. This results in missed deadlines as team members waste time entering campaign details like subject lines and target audiences into Trello. Consequently, the marketing team is left scrambling to keep track of their projects, leading to confusion and potential loss of revenue due to uncoordinated efforts.

Top Ways to Automate Klaviyo & Trello

Automated Task Creation: Automatically generate Trello cards for new Klaviyo subscribers, ensuring that your marketing team can promptly follow up and nurture leads without manual data entry.
Real-Time Engagement Tracking: Sync customer engagement data from Klaviyo to Trello, allowing project managers to visualize campaign performance and adjust strategies based on real-time insights.
Streamlined Campaign Management: Create Trello checklists based on Klaviyo campaign milestones, enabling teams to track progress and ensure timely execution of marketing initiatives.

How to Build the Klaviyo → Trello Sync

In Klaviyo, set up a Standard Webhook to trigger on the event 'Campaign Sent'. This webhook will send a POST request to your server with campaign details.
On your server, create an endpoint (e.g., /api/trello/create-task) to receive the webhook data. Extract the relevant payload fields such as 'Campaign Name', 'Subject Line', and 'Audience Size'.
Use the Trello API to create a new card in the appropriate board and list. Make a POST request to https://api.trello.com/1/cards with the following JSON payload: { "name": "{{Campaign Name}}", "desc": "Subject: {{Subject Line}}\nAudience: {{Audience Size}}", "idList": "", "key": "", "token": "" }.
Ensure that your server responds to the Klaviyo webhook with a 200 status code to confirm receipt of the data.

Developer Warnings & API Gotchas

Ensure that the 'idList' in your Trello API request matches the correct list ID where you want the tasks to be created; otherwise, tasks may end up in the wrong location.
Be cautious with the data types; for example, ensure that the 'Audience Size' is formatted as a string in the Trello card description to avoid JSON parsing errors.
Monitor the payload size from Klaviyo; if the campaign details exceed Trello's character limits for card names or descriptions, you may need to truncate or summarize the data appropriately.

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 Trello Add Attachment to Card
When this happens in Klaviyo... Get List

Do this in Trello Add Checklist to Card
When this happens in Klaviyo... Get Metric

Do this in Trello Add Label to Card
When this happens in Klaviyo... Get Tag

Do this in Trello Add Member to Board
When this happens in Klaviyo... New Campaign

Do this in Trello Add Members to Card

SyncMatrix Experts

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