Automate Mailchimp & Trello

Stop paying for mismatched spreadsheets. Sync data between Mailchimp 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 ["Mailchimp"]
        T1(["Automation Emails Dynamic Dropdown"])
    end
    
    subgraph Middleware ["Enterprise Integration Core"]
        W[Webhook
Listener] --> 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 Mailchimp and Trello operate independently, marketing teams often face delays in project management due to the absence of real-time updates. For instance, when a new subscriber is added in Mailchimp, the marketing team must manually log this information into Trello, leading to potential data loss and miscommunication about campaign statuses. This manual entry process can consume hours each week, diverting focus from strategic tasks and causing project timelines to slip.

Top Ways to Automate Mailchimp & Trello

Automated Campaign Tracking: Automatically create Trello cards for each new Mailchimp campaign, ensuring your project management team is always informed about upcoming marketing initiatives and deadlines.
Real-Time Updates: Sync Trello task updates with Mailchimp lists, allowing your marketing team to stay aligned with project statuses and adjust campaigns based on current progress.
Performance Reporting: Generate Trello cards for Mailchimp campaign performance metrics, enabling your team to easily track results and collaborate on strategy adjustments in real-time.

How to Build the Mailchimp → Trello Sync

In Mailchimp, set up a Standard Webhook to listen for the 'subscribe' event. Configure the webhook to send a POST request to your server endpoint (e.g., https://yourserver.com/mailchimp-webhook).
In your server code, extract the relevant payload data from the Mailchimp webhook, specifically the subscriber's email address and any tags associated with the subscriber.
Utilize the Trello REST API to create a new card in a specified board and list. Make a POST request to https://api.trello.com/1/cards with the following JSON payload: {"name": "New Subscriber - {subscriber_email}", "desc": "Tags: {tags}", "idList": "{your_list_id}", "key": "{your_api_key}", "token": "{your_oauth_token}"}.
Verify that the card is created successfully in Trello by checking the response from the API call.

Developer Warnings & API Gotchas

Ensure that the 'idList' parameter in the Trello API POST request corresponds to the correct list where you want to create the card; using an incorrect ID will result in a failed card creation.
Mailchimp's webhook payload may include multiple tags; ensure your server logic correctly formats these into a single string for the Trello card description to avoid truncation.
Be cautious of the data types when mapping the subscriber's email and tags; Trello may reject the request if the data does not conform to expected formats (e.g., invalid email format).

Supported API Operations

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

When this happens in Mailchimp... Automation Emails Dynamic Dropdown

Do this in Trello Add Attachment to Card
When this happens in Mailchimp... Automations Dynamic Dropdown

Do this in Trello Add Checklist to Card
When this happens in Mailchimp... Email Opened

Do this in Trello Add Label to Card
When this happens in Mailchimp... Fetch Custom Actions

Do this in Trello Add Member to Board
When this happens in Mailchimp... Hidden trigger for static segments

Do this in Trello Add Members to Card

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