Mailerlite and Customer.io Integration

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Sync leads and customer data between Mailerlite and Customer.io for targeted campaigns. Latenode's visual editor and affordable execution pricing make complex segmentation and automation easy to scale while staying cost-effective.

Mailerlite + Customer.io integration

Connect Mailerlite and Customer.io in minutes with Latenode.

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Swap Apps

Mailerlite

Customer.io

Step 1: Choose a Trigger

Step 2: Choose an Action

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How to connect Mailerlite and Customer.io

Create a New Scenario to Connect Mailerlite and Customer.io

In the workspace, click the “Create New Scenario” button.

Add the First Step

Add the first node – a trigger that will initiate the scenario when it receives the required event. Triggers can be scheduled, called by a Mailerlite, triggered by another scenario, or executed manually (for testing purposes). In most cases, Mailerlite or Customer.io will be your first step. To do this, click "Choose an app," find Mailerlite or Customer.io, and select the appropriate trigger to start the scenario.

Add the Mailerlite Node

Select the Mailerlite node from the app selection panel on the right.

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Mailerlite

Configure the Mailerlite

Click on the Mailerlite node to configure it. You can modify the Mailerlite URL and choose between DEV and PROD versions. You can also copy it for use in further automations.

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Connect Mailerlite

Sign In

Run node once

Add the Customer.io Node

Next, click the plus (+) icon on the Mailerlite node, select Customer.io from the list of available apps, and choose the action you need from the list of nodes within Customer.io.

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Mailerlite

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Customer.io

Authenticate Customer.io

Now, click the Customer.io node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your Customer.io settings. Authentication allows you to use Customer.io through Latenode.

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Mailerlite

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Customer.io

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Connect Customer.io

Sign In

Run node once

Configure the Mailerlite and Customer.io Nodes

Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.

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Connect Customer.io

Customer.io Oauth 2.0

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Select an action *

Select

Map

The action ID

Run node once

Set Up the Mailerlite and Customer.io Integration

Use various Latenode nodes to transform data and enhance your integration:

  • Branching: Create multiple branches within the scenario to handle complex logic.
  • Merging: Combine different node branches into one, passing data through it.
  • Plug n Play Nodes: Use nodes that don’t require account credentials.
  • Ask AI: Use the GPT-powered option to add AI capabilities to any node.
  • Wait: Set waiting times, either for intervals or until specific dates.
  • Sub-scenarios (Nodules): Create sub-scenarios that are encapsulated in a single node.
  • Iteration: Process arrays of data when needed.
  • Code: Write custom code or ask our AI assistant to do it for you.
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Save and Activate the Scenario

After configuring Mailerlite, Customer.io, and any additional nodes, don’t forget to save the scenario and click "Deploy." Activating the scenario ensures it will run automatically whenever the trigger node receives input or a condition is met. By default, all newly created scenarios are deactivated.

Test the Scenario

Run the scenario by clicking “Run once” and triggering an event to check if the Mailerlite and Customer.io integration works as expected. Depending on your setup, data should flow between Mailerlite and Customer.io (or vice versa). Easily troubleshoot the scenario by reviewing the execution history to identify and fix any issues.

Most powerful ways to connect Mailerlite and Customer.io

Mailerlite + Customer.io + Slack: When a new subscriber is created in Mailerlite, this automation adds them to Customer.io and sends a welcome message to a Slack channel.

Customer.io + Mailerlite + Google Sheets: When a new customer is created or updated in Customer.io, their information is added to a Google Sheet, and then their contact information is synced to Mailerlite to enable email campaigns.

Mailerlite and Customer.io integration alternatives

About Mailerlite

Use Mailerlite in Latenode to automate email marketing tasks. Add subscribers, send targeted campaigns, and track results based on triggers from your CRM, database, or e-commerce platform. Latenode’s visual editor and code blocks offer flexible control over message personalization and flow logic without complex coding or per-action pricing.

About Customer.io

Use Customer.io in Latenode to automate personalized messaging based on real-time user behavior. React instantly to events like purchases or sign-ups. Build flows that segment users, trigger custom emails, and update profiles automatically. Orchestrate complex campaigns and keep data consistent across platforms.

See how Latenode works

FAQ Mailerlite and Customer.io

How can I connect my Mailerlite account to Customer.io using Latenode?

To connect your Mailerlite account to Customer.io on Latenode, follow these steps:

  • Sign in to your Latenode account.
  • Navigate to the integrations section.
  • Select Mailerlite and Customer.io and click on "Connect".
  • Authenticate your Mailerlite and Customer.io accounts.
  • Once connected, you can create workflows using both apps.

Can I sync new Mailerlite subscribers to Customer.io?

Yes, easily. Latenode automates subscriber syncing, enriching Customer.io profiles with Mailerlite data in real-time, leading to more personalized customer journeys.

What types of tasks can I perform by integrating Mailerlite with Customer.io?

Integrating Mailerlite with Customer.io allows you to perform various tasks, including:

  • Adding new Mailerlite subscribers as users in Customer.io.
  • Updating Customer.io user attributes based on Mailerlite activity.
  • Triggering personalized Customer.io campaigns upon Mailerlite signup.
  • Segmenting Customer.io users based on Mailerlite campaign engagement.
  • Creating or updating custom fields based on campaign performance data.

Can I use JavaScript to transform data between Mailerlite and Customer.io?

Yes! Latenode lets you use JavaScript to format and transform data between Mailerlite and Customer.io, enabling complex data manipulation without code.

Are there any limitations to the Mailerlite and Customer.io integration on Latenode?

While the integration is powerful, there are certain limitations to be aware of:

  • Rate limits imposed by Mailerlite and Customer.io APIs may affect high-volume data syncs.
  • Complex data transformations may require JavaScript knowledge.
  • Historical data migration requires custom workflow design.

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