How to connect Mailerlite and JustCall
Create a New Scenario to Connect Mailerlite and JustCall
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 JustCall will be your first step. To do this, click "Choose an app," find Mailerlite or JustCall, 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.


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


Mailerlite
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JustCall


Authenticate JustCall
Now, click the JustCall node and select the connection option. This can be an OAuth2 connection or an API key, which you can obtain in your JustCall settings. Authentication allows you to use JustCall through Latenode.
Configure the Mailerlite and JustCall Nodes
Next, configure the nodes by filling in the required parameters according to your logic. Fields marked with a red asterisk (*) are mandatory.
Set Up the Mailerlite and JustCall 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.

JavaScript
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AI Anthropic Claude 3
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JustCall
Trigger on Webhook
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Mailerlite
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Iterator
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Webhook response


Save and Activate the Scenario
After configuring Mailerlite, JustCall, 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 JustCall integration works as expected. Depending on your setup, data should flow between Mailerlite and JustCall (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 JustCall
JustCall + Mailerlite + Google Sheets: When a call ends in JustCall, find or create the contact in Mailerlite and log the call details, including outcome and contact info, in a Google Sheet for future analysis.
JustCall + Mailerlite + Slack: When a call is missed in JustCall, add the caller to a Mailerlite follow-up sequence to engage with potential customers and notify the sales team in Slack, ensuring no leads are lost.
Mailerlite and JustCall 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.
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About JustCall
Use JustCall in Latenode to automate call workflows: trigger calls based on CRM updates, send SMS follow-ups, and log call data. Latenode adds visual flow control, custom logic, and data enrichment missing in basic JustCall setups. Create complex, scalable call-centric processes with no-code tools and flexible JavaScript.
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See how Latenode works
FAQ Mailerlite and JustCall
How can I connect my Mailerlite account to JustCall using Latenode?
To connect your Mailerlite account to JustCall on Latenode, follow these steps:
- Sign in to your Latenode account.
- Navigate to the integrations section.
- Select Mailerlite and click on "Connect".
- Authenticate your Mailerlite and JustCall accounts by providing the necessary permissions.
- Once connected, you can create workflows using both apps.
Can I automatically add new JustCall leads to Mailerlite?
Yes, you can! Latenode's visual editor simplifies this. Automatically sync JustCall contacts to Mailerlite, ensuring targeted email campaigns and improved lead nurturing.
What types of tasks can I perform by integrating Mailerlite with JustCall?
Integrating Mailerlite with JustCall allows you to perform various tasks, including:
- Adding new JustCall contacts to a specific Mailerlite group.
- Triggering a Mailerlite email campaign when a call ends in JustCall.
- Updating Mailerlite subscriber information based on JustCall activity.
- Sending SMS via JustCall to new Mailerlite subscribers.
- Logging JustCall call data in a Mailerlite custom field.
Can I use JavaScript with my Mailerlite automations?
Yes! Latenode allows you to use JavaScript within your Mailerlite workflows for complex data manipulation and custom logic.
Are there any limitations to the Mailerlite and JustCall integration on Latenode?
While the integration is powerful, there are certain limitations to be aware of:
- Complex data transformations may require JavaScript knowledge.
- Rate limits of Mailerlite and JustCall APIs apply.
- Custom field updates in Mailerlite depend on API availability.