Automate Mailchimp & Twilio

Stop paying for mismatched spreadsheets. Sync data between Mailchimp and Twilio 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 ["Twilio"]
        A1(["Call Legacy"])
    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 Twilio operate in isolation, marketing teams often face issues with timely communication. For instance, if a subscriber opts in via a Mailchimp campaign, that data may not immediately reflect in Twilio, leading to missed SMS notifications. This results in manual data entry where marketing staff must cross-reference subscriber lists, wasting hours each week on updates that could be automated.

Top Ways to Automate Mailchimp & Twilio

Automated SMS Notifications for Campaign Updates: Instantly notify your subscribers via SMS when new campaigns are launched in Mailchimp, ensuring they never miss an opportunity to engage with your brand.
Seamless Subscriber Management: Automatically sync new Mailchimp subscribers to Twilio, allowing for immediate follow-up with personalized SMS messages that enhance customer relationships.
Triggered SMS Responses Based on Email Engagement: Set up workflows that send targeted SMS messages to users who engage with specific Mailchimp campaigns, increasing the likelihood of conversion through timely and relevant communication.

How to Build the Mailchimp → Twilio Sync

In Mailchimp, navigate to the 'Webhooks' section and create a new webhook. Set the trigger to 'Subscribe' and the target URL to your Twilio API endpoint for message creation.
Configure the webhook to send the following payload: {"email":"MERGE_FIELDS.EMAIL","first_name":"MERGE_FIELDS.FNAME","last_name":"MERGE_FIELDS.LNAME"}.
In Twilio, set up a REST API endpoint to handle incoming POST requests. Use the Twilio API to insert a new message with the payload received from Mailchimp.
Map the incoming data to the Twilio message parameters. For example, use the 'To' field for the phone number and 'Body' for the message content.
Test the integration by subscribing a new email in Mailchimp and verifying that a corresponding SMS is sent via Twilio.

Developer Warnings & API Gotchas

Ensure that the phone number format in Twilio matches the expected format; otherwise, the SMS may fail to send.
Watch for the potential mismatch in subscriber data; if Mailchimp's webhook payload does not include a phone number, Twilio will not be able to send an SMS.
Be cautious with the data types in the payload; if Mailchimp sends a string where Twilio expects a number (e.g., for phone numbers), this will lead to errors in message delivery.

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 Twilio Call (Legacy)
When this happens in Mailchimp... Automations Dynamic Dropdown

Do this in Twilio Call Phone
When this happens in Mailchimp... Email Opened

Do this in Twilio SMS (Legacy)
When this happens in Mailchimp... Fetch Custom Actions

Do this in Twilio Send SMS
When this happens in Mailchimp... Hidden trigger for static segments

Do this in Twilio Send WhatsApp Message

SyncMatrix Experts

Available for Hire

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

Speak with an Integration Architect

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

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