Automate Twilio & Mailchimp

Stop paying for mismatched spreadsheets. Sync data between Twilio and Mailchimp 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 ["Twilio"]
        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 ["Mailchimp"]
        A1(["Add Note to Subscriber"])
    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 Twilio and Mailchimp operate independently, critical customer engagement data can be lost. For instance, if a customer responds to a Twilio SMS campaign, that response may not be reflected in Mailchimp's subscriber profiles. This leads to marketing teams manually cross-referencing Twilio logs with Mailchimp lists to update contact statuses, wasting hours each week on data entry. Consequently, marketing efforts become less targeted, as teams lack real-time insights into customer interactions.

Top Ways to Automate Twilio & Mailchimp

Automated SMS Notifications for Email Campaigns: Instantly send SMS alerts to customers when they receive a new email from your Mailchimp campaigns, ensuring they stay informed and engaged.
Dynamic List Segmentation: Automatically update Mailchimp subscriber lists based on Twilio SMS interactions, allowing for targeted marketing efforts that resonate with specific customer behaviors.
Feedback Collection via SMS: After a Mailchimp campaign, trigger automated SMS surveys to gather customer feedback, enhancing your understanding of their preferences and improving future campaigns.

How to Build the Twilio → Mailchimp Sync

Set up a webhook in Twilio to listen for incoming SMS messages. Use the endpoint: https://api.twilio.com/2010-04-01/Accounts/{AccountSid}/Messages.json.
In the webhook configuration, ensure you extract the following payload data: From (sender's number), Body (message content), and Timestamp.
Create a function to format the extracted data into Mailchimp's required structure, including mapping From to email_address and Body to merge_fields.message.
Use Mailchimp's API to insert or update the subscriber's information. Make a POST request to the endpoint: https://.api.mailchimp.com/3.0/lists/{list_id}/members.
Include the formatted data in the request body as JSON, ensuring to set the status to subscribed for new entries or update_existing to true for existing ones.

Developer Warnings & API Gotchas

Ensure the From number in Twilio matches the email address format expected in Mailchimp, or you will encounter errors during the API call.
Be cautious about the data type for merge_fields.message; it must be a string. If the SMS body exceeds Mailchimp's character limits, it may result in failed updates.
When updating existing subscribers, verify that the status field is correctly set; otherwise, you might inadvertently change active subscribers to unsubscribed.

Supported API Operations

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

When this happens in Twilio... Fetch Custom Actions

Do this in Mailchimp Add Note to Subscriber
When this happens in Twilio... New Call

Do this in Mailchimp Add Subscriber to Tag
When this happens in Twilio... New Phone Number

Do this in Mailchimp Add/Update Subscriber
When this happens in Twilio... New Recording

Do this in Mailchimp Add/Update Subscriber
When this happens in Twilio... New SMS

Do this in Mailchimp Archive Subscriber

SyncMatrix Experts

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