Automate Asana & Trello

Stop paying for mismatched spreadsheets. Sync data between Asana and Trello in real-time, so you can manage your operations without the busywork.

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Custom API Integration

Secure Data Transfer

Done-For-You Setup

How the Data Flows

graph LR
    subgraph Source ["Asana"]
        T1(["Completed Task"])
    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 Asana and Trello operate independently, project updates made in Asana can be missed in Trello, particularly task completion statuses. For instance, if a project manager marks a task as complete in Asana, the corresponding task in Trello remains in progress, leading to confusion for the team. This misalignment forces team members to manually check both platforms, wasting valuable time and risking missed deadlines as they reconcile discrepancies between the two systems.

Top Ways to Automate Asana & Trello

Automated Task Synchronization: Instantly sync tasks between Asana and Trello, ensuring that updates made in one platform are reflected in the other, eliminating the need for manual entry and reducing the risk of errors.
Real-Time Status Updates: Automatically notify team members of changes in task status across both platforms, keeping everyone aligned and informed without the hassle of constant check-ins.
Centralized Reporting: Generate comprehensive reports that pull data from both Asana and Trello, providing stakeholders with a unified view of project progress and resource allocation, enhancing decision-making capabilities.

How to Build the Asana → Trello Sync

Set up a webhook in Asana to listen for task completion events. Use the endpoint https://app.asana.com/api/1.0/webhooks to create a new webhook for the project you want to monitor.
In the webhook payload, extract the data.id and data.completed fields when a task is marked complete.
Utilize the Trello API to create or update the corresponding task. Use the endpoint https://api.trello.com/1/cards/{cardId} and include the name and closed fields in the payload, setting closed to true to reflect the task completion.
Test the integration by completing a task in Asana and verifying that the corresponding Trello card updates accordingly.

Developer Warnings & API Gotchas

Ensure the task names in Asana and Trello match exactly; otherwise, the update may not find the correct card to close.
Be aware of the data structure differences; Asana's completed field is a boolean, while Trello's closed field requires a specific boolean format. Ensure the payload is formatted correctly.
Handle potential duplicate webhooks from Asana; if a task is completed multiple times, ensure your logic in Trello does not attempt to close an already closed card.

Supported API Operations

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

When this happens in Asana... Completed Task

Do this in Trello Add Attachment to Card
When this happens in Asana... Empty List

Do this in Trello Add Checklist to Card
When this happens in Asana... Empty Listing (Dynamic Dropdown)

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

Do this in Trello Add Member to Board
When this happens in Asana... List Projects

Do this in Trello Add Members to Card

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