Customer.io + Mailchimp Integration

Integrate Customer.io to Mailchimp in one click, or tell Integrately AI how you want each subscriber handled. Sync new signups, update customer records, add people to segments, and trigger personalized workflows automatically.

Free foreverFree forever.
Use premium features free for 14 daysUse premium features free for 14 days.
1.
  • Mailchimp
    Subscriber is created/updated in Mailchimp
  • Mailchimp
    Subscriber is added to segment or tag in Mailchimp
  • Mailchimp
    Subscriber is added to list in Mailchimp Instant
  • Mailchimp
    Subscriber has unsubscribed in Mailchimp
  • Mailchimp
    Subscriber's profile is updated in Mailchimp Instant
  • Mailchimp
    List member is unsubscribed in Mailchimp Instant
  • Mailchimp
    Subscriber's email address is cleaned from the list in Mailchimp Instant
  • Mailchimp
    Subscriber's email address is changed in Mailchimp Instant
  • Mailchimp
    Campaign is created in Mailchimp
  • Mailchimp
    Campaign is sent in Mailchimp
  • Mailchimp
    Campaign email activity is created in Mailchimp
  • Mailchimp
    Campaign is sent or cancelled in Mailchimp Instant
  • Mailchimp
    Email is opened in Mailchimp
  • Mailchimp
    Link is clicked in Mailchimp
  • Mailchimp
    Customer is created in Mailchimp
  • Mailchimp
    Order is created in Mailchimp
  • Mailchimp
    Audience/List is created in Mailchimp
  • Mailchimp
    Folder is created in Mailchimp
  • Mailchimp
    List segments is created in Mailchimp
  • Mailchimp
    File is created in Mailchimp
  • Mailchimp
    Members is added/updated in segment in Mailchimp
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2.
  • Customer.io
    Add person to segment in Customer.io
  • Customer.io
    Create or Update Person in Customer.io
  • Customer.io
    Create event in Customer.io
  • Customer.io
    Create anonymous event in Customer.io
  • Mailchimp
    Create list (In Review) in Mailchimp
  • Mailchimp
    Create or update subscriber in Mailchimp
  • Mailchimp
    Add tag to subscriber in Mailchimp
  • Mailchimp
    Update Subscriber in Mailchimp
  • Mailchimp
    Add note to subscriber in Mailchimp
  • Mailchimp
    Search subscriber by email in Mailchimp
  • Mailchimp
    Search subscriber by email in a list in Mailchimp
  • Mailchimp
    Unsubscribe email in Mailchimp
  • Mailchimp
    Remove subscriber in Mailchimp
  • Mailchimp
    Archive list member in Mailchimp
  • Mailchimp
    Send campaign in Mailchimp
  • Mailchimp
    Search campaign in Mailchimp
  • Mailchimp
    Update campaign in Mailchimp
  • Mailchimp
    Add or remove member tags in Mailchimp
  • Mailchimp
    Create custom event in Mailchimp
  • Mailchimp
    Create file in Mailchimp
  • Mailchimp
    Search customer in Mailchimp
  • Mailchimp
    Create campaign in Mailchimp
  • Mailchimp
    Search content of campaign in Mailchimp
  • Mailchimp
    Get campaign by id in Mailchimp
  • Mailchimp
    Get open campaign details for subscriber in Mailchimp
  • Mailchimp
    Create folder in Mailchimp
  • Mailchimp
    Add existing member to static segment in Mailchimp
  • Mailchimp
    Remove member from static segment in Mailchimp

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Ready Workflows Ready Workflows for Customer.io + Mailchimp Integration

Capture subscribers, update customer profiles, add people to segments, and sync campaign data, all in just one click.

Most popular automationsmost-popular-automations
Mailchimp + Customer.io Integration

Create Customer.io person for new Mailchimp contact

There are many reasons why someone might choose to use two different marketing tools. One common reason being - able to reach a wider audience. For example, if one tool is better suited for reaching customers in a certain geographic region, while another is better for reaching customers of a certain age group, using both can help businesses reach their target market more effectively.

Thus, integration of your new Customer.io person and Mailchimp contact can help make sure that your messages are coordinated and that you're taking full advantage of all your channels. It can also help reduce the amount of time you spend managing different tools and platforms.
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Got a different task in mind? Describe it

Got a different automation in mind? Describe it and let Integrately AI build it for you.

Connect more apps to your Customer.io + Mailchimp flow

Connect lead capture, billing, analytics, and messaging tools to extend your Customer.io and Mailchimp workflows. Pick a combination and activate it in one click.

Customer.io
Mailchimp
+
ShopifyShopify (4)
+
Google Analytics 4Google Analytics 4 (3)
+
StripeStripe (3)
+
TypeformTypeform (3)
+
SlackSlack (3)
+
CalendlyCalendly (3)
M
C
S
Add every new Mailchimp subscriber to Customer.io, and create a customer record in Shopify
New Mailchimp subscribers instantly update Customer.io and create a Shopify customer profile without manual data entry.
S
M
C
When a Shopify order is created, update the subscriber in Mailchimp and add them to a segment in Customer.io
Shopify orders update Mailchimp subscriber details and trigger Customer.io segment additions instantly.
S
C
M
If a Shopify customer is created, create or update the person in Customer.io and add a tag to the subscriber in Mailchimp
New Shopify customers update Customer.io records and receive relevant tags in Mailchimp automatically.
S
C
M
Use ChatGPT to analyse every new Shopify order, update the Customer.io event log, and add a note to the subscriber in Mailchimp
ChatGPT analyses Shopify purchases to log custom events in Customer.io and attach notes in Mailchimp.

Supported triggers and actions for Customer.io and Mailchimp

Mix and match to build the exact automation you need

Customer.io
Customer.io Triggers & Actions
No trigger is available
Add person to segment in Customer.io
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Create or Update Person in Customer.io
Generates a new invoice
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Create event in Customer.io
Adds a new contact to the contact list
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Create anonymous event in Customer.io
Creates a confidential gathering without disclosing organizer's identity
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Mailchimp
Mailchimp Triggers & Actions
Subscriber is created/updated in Mailchimp
Triggers the automation when any subscriber is created or updated
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Subscriber is added to segment or tag in Mailchimp
Triggers the automation when a subscriber is added to a segment or tag
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Instant
Subscriber is added to list in Mailchimp
Triggers the automation when a subscriber is added to a list
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Subscriber has unsubscribed in Mailchimp
Triggers the automation when a subscriber unsubscribes from a particular mailing list
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Instant
Subscriber's profile is updated in Mailchimp
Triggers the automation when a subscriber's profile is updated
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Instant
List member is unsubscribed in Mailchimp
Triggers the automation when a member unsubscribes from a mailing list
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Instant
Subscriber's email address is cleaned from the list in Mailchimp
Triggers the automation when a subscriber's email address is cleaned from the list
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Instant
Subscriber's email address is changed in Mailchimp
Triggers the automation when a subscriber's email address is changed
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Campaign is created in Mailchimp
Triggers the automation when a new campaign is created
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Campaign is sent in Mailchimp
Triggers the automation when any campaign is sent
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Campaign email activity is created in Mailchimp
Triggers the automation when a new campaign email activity is created
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Instant
Campaign is sent or cancelled in Mailchimp
Triggers the automation when a campaign is sent or cancelled in your marketing platform
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Email is opened in Mailchimp
Triggers the automation when an email is opened
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Link is clicked in Mailchimp
Triggers the automation when a link in the email is clicked
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Customer is created in Mailchimp
Triggers the automation when a new customer is created
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Order is created in Mailchimp
Triggers the automation when a new order is created
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Audience/List is created in Mailchimp
Triggers the automation when a new audience or list is created
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Folder is created in Mailchimp
Triggers the automation when a new folder is created
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List segments is created in Mailchimp
Triggers the automation when a new segment is created
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File is created in Mailchimp
Triggers the automation when a particular action in the workflow fails
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Members is added/updated in segment in Mailchimp
Triggers the automation when a member is added or updated in a particular segment
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Create list (In Review) in Mailchimp
Create list
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Create or update subscriber in Mailchimp
Generates a new invoice
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Add tag to subscriber in Mailchimp
Assigns a tag to a subscriber based on predefined criteria
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Update Subscriber in Mailchimp
Updates subscriber information
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Add note to subscriber in Mailchimp
Adds a note to a subscriber
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Search subscriber by email in Mailchimp
Retrieves subscriber information using their email address
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Search subscriber by email in a list in Mailchimp
Searches for a subscriber by email within a designated list
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Unsubscribe email in Mailchimp
Removes email address from mailing list
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Remove subscriber in Mailchimp
Unsubscribe a user from mailing lists
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Archive list member in Mailchimp
Removes list members from active list and store them in an archived list
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Send campaign in Mailchimp
Sends out a pre-designed campaign to targeted recipients
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Search campaign in Mailchimp
Searches for a campaign
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Update campaign in Mailchimp
Refresh and adjust the content and settings of a marketing campaign
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Add or remove member tags in Mailchimp
Manage member tags based on criteria
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Create custom event in Mailchimp
Creates a new marketing campaign
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Create file in Mailchimp
Generates a new file
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Search customer in Mailchimp
Locates and retrieves customer information
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Create campaign in Mailchimp
Generates and launch a new marketing campaign
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Search content of campaign in Mailchimp
Searches for the content of a campaign
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Get campaign by id in Mailchimp
Retrieves a campaign using its id
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Get open campaign details for subscriber in Mailchimp
Retrieves and display detailed information about campaign interactions for a subscriber
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Create folder in Mailchimp
Creates a new folder in the designated location
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Add existing member to static segment in Mailchimp
Adds a member who already exists to a predefined static segment within the audience
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Remove member from static segment in Mailchimp
Removes a member from a predefined static segment
Try it →

What can you automate with Customer.io + Mailchimp?

Streamline your subscriber management and campaign workflows by automating routine data transfers between Customer.io and Mailchimp.

What you can automate?
🔄
Sync new subscribers instantly
Automatically create or update Customer.io profiles the moment a new subscriber is created or updated in Mailchimp, keeping both platforms perfectly aligned.
📝
Capture every subscriber detail
Map all available subscriber attributes and custom fields from Mailchimp into Customer.io instead of only basic contact names and email addresses.
🔔
Notify your team on subscriber milestones
Send instant alerts to your team communication channels whenever important subscriber activity or campaign updates occur.
🔀
Route subscribers based on criteria
Apply conditional logic to direct subscribers into specific Customer.io segments or Mailchimp tags depending on their submitted attributes.
📅
Keep records updated as data changes
Automatically reflect profile updates, segment changes, and unsubscriptions across both apps without manual intervention.
Prevent duplicate profile creation
Use intelligent upsert operations to add or update subscriber records rather than creating redundant entries in your database.
🏷️
Handle unsubscriptions and cleaned emails
Automatically process unsubscriptions, email cleaning events, and segment removals across platforms to protect your sender reputation.
🔌
Extend flows to external tools
Connect your core Customer.io and Mailchimp workflow to Shopify or other platforms to trigger downstream orders and customer profiles.
And much more...

Who is Customer.io + Mailchimp integration for?

Teams managing subscriber acquisition, targeted campaigns, and customer data find that connecting Customer.io and Mailchimp eliminates manual updating and keeps records synchronized.

Performance marketers
Performance marketers
Sales teams
Sales teams
Account managers
Account managers
E-commerce managers
E-commerce managers
Customer success specialists
Customer success specialists
Operations leads
Operations leads
📈
Performance marketers
You're running campaigns across multiple acquisition channels but your subscriber lists only update when someone manually exports contacts, so the segment counts you're optimising against are always a few hours behind — with this integration, every new signup lands in Customer.io instantly and your data stays current.
Sales teams
You need to act fast on new leads coming in from email campaigns, but finding out about signups too late means prospects go cold before outreach begins — automating both apps means every subscriber update triggers immediate profile creation so your sales reps can follow up right away.
📋
Account managers
You answer to clients who want to see real-time subscriber growth and campaign engagement metrics, but compiling manual weekly reports takes hours away from client strategy — connecting these apps means campaign activity updates automatically and your reporting stays accurate without manual spreadsheet work.
🛒
E-commerce managers
The subscriber volume from your online store is too high for anyone to keep up with by hand, leading to fragmented customer profiles across your marketing tools — integrating Customer.io to Mailchimp means every customer action syncs instantly and your database remains organized.
🎯
Customer success specialists
You own the onboarding stage and depend on someone upstream to hand over subscriber data, but delays in data transfer leave new users waiting for their welcome sequences — this integration means every signup triggers downstream workflows instantly and handoffs happen without friction.
🗂️
Operations leads
You need a reliable customer history for compliance and auditing, but manual data entry keeps creating gaps and duplicate profiles in your systems — automating both apps means every subscriber record matches perfectly and your historical database stays clean.
Our team

Ready Workflows Did you know?

Our team can create automations for you... At no extra cost!

Tell us what type of automation you want to make?

Why choose Integrately to automate Customer.io + Mailchimp

Build and manage your Customer.io + Mailchimp automations with ready-made flows, AI assistance, 24x5 reliable human support, and enterprise-grade security.

1,500+ apps connected
1,500+ apps connected
Connect Customer.io + Mailchimp with email, CRM, messaging, finance, support, and other tools whenever your process needs another step.
20M+ Ready Automations
20M+ Ready Automations
Start with 20 million+ proven automation templates instead of building everything from scratch. Pick the closest flow, connect your accounts, and automate in minutes.
AI that builds your automations
AI that builds your automations
Describe your workflow in plain English. Integrately AI builds it, maps fields, adds conditions, and even lets you edit it through chat.
24x5 Live Chat Support
24x5 Live Chat Support
Chat with a real person and get reply within 2-5 minutes. No bots, no tickets, no waiting — just real help, right when you need it.
Free done-for-you setup
Free done-for-you setup
Tell our team what you need and we will help set up the automation in your account at no extra cost on any plan.
Secure by design
Secure by design
SOC 2 Type II and ISO 27001:2022 certified, with GDPR-compliant data practices. Your data and credentials are handled using recognised security and privacy standards.
How Integrately Works?

How Integrately Works?

1
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Automation is ready
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Frequently Asked Questions

How do I connect Customer.io to Mailchimp?
Frequently Asked Questions
You can connect Customer.io to Mailchimp using 1-click automations on Integrately. Choose a ready template or ask Integrately AI to build the workflow for you. You can also connect other apps like Shopify, Slack, or Typeform in minutes.
Can I automatically sync new Mailchimp subscribers to Customer.io?
Frequently Asked Questions
Can I connect Customer.io, Mailchimp, and Slack?
Frequently Asked Questions
What is a good Zapier alternative for Customer.io and Mailchimp?
Frequently Asked Questions
How are customer profiles updated between Customer.io and Mailchimp?
Frequently Asked Questions
Can I manage campaign email activity and subscriber tags?
Frequently Asked Questions
Do I need coding skills to automate Customer.io and Mailchimp?
Frequently Asked Questions
Is the Customer.io and Mailchimp integration free?
Frequently Asked Questions
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