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Zapier makes it easy to integrate MailerLite Classic with Square - no code necessary. See how you can get setup in minutes.
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MailerLite Classic
MailerLite Classic
1. Choose trigger event
Square
Square
2. Choose action
1. Select the event
Setup
Test
MailerLite Classic
Choose a trigger event
Choose a trigger
A trigger is the event that starts your Zap—like a "Campaign Sent" from MailerLite Classic.
Add your action
An action happens after the trigger—such as "Add Customer to Group" in Square.
You’re connected!
Zapier seamlessly connects MailerLite Classic and Square, automating your workflow.
Supported triggers and actions
Zapier helps you create workflows that connect your apps to automate repetitive tasks. A trigger is an event that starts a workflow, and an action is an event a Zap performs.
Create a new record or update an existing record in your app.
Inventory Change Type
Required
Location
Required
Catalog Object
Required
Quantity
Required
Ignore unchanged counts
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Location
Required
Order ID
Required
Customer ID
Required
Accepted_payment_methods
Required
Payment due date
Required
Tipping enabled
Invoice title
Invoice number
Description
Delivery method
Required
Scheduled at
Date of sale
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Payment
Required
Refund amount
Reason
Team member
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Help_text
Location
Required
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Customer ID
Required
First Name
Last Name
Email_address
Phone_number
Country
Street Address
Apt./Suite
City
State
ZIP
Other
Company
Nickname
Reference ID
Birthday
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Find Order by ID
This action retrieves the details of a specific order from Square using the order ID.
Action
This is an event a Zap performs.
Write
Create a new record or update an existing record in your app.
Customer_id
Action
This is an event a Zap performs.
Search
Find existing data in your app
Location
Required
Field_help
Customer
Fulfillment_state
Status
Action
This is an event a Zap performs.
Search
Find existing data in your app
Location
Required
Field_help
Customer
Fulfillment_state
Status
Customer ID
External Identifier
Source
Ticket Name
Quantity
Amount
Currency
Catalog Item Variation ID
Note
Unique Identifier
Amount Discounted
Amount Discounted Currency
Name
Percentage
Type
Unique Identifier
Name
Percentage
Type
Unique Identifier
Action
This is an event a Zap performs.
Search or write
Find existing data in your app, or create a new record if no data is found
For AI agents & developers
Use MailerLite Classic and Square with AI agents and code
Beyond Zap workflows. Call MailerLite Classic and Square actions directly from your AI client or your codebase, using the same 9,000+ app integrations Zapier already runs.
No code
Connect via Zapier MCP
Expose MailerLite Classic and Square actions as tools in any MCP client. Authenticate once, then call them in natural language.
Example actions on this page
Create/Update Subscriber
Add Customer to Group
Works with
Claude · ChatGPT · Cursor · any MCP-compatible client
There is no Python package yet. SDK is TypeScript-only (@zapier/zapier-sdk). The MCP server URL is personal to your account; get it at zapier.com/mcp.
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Customers who say using Zapier has made them better at their job
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Customers have created over 25 million Zaps on the platform
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The average user takes less than 6 minutes to set up a Zap
Connect MailerLite Classic and Square to integrate crucial parts of your business
With Zapier, you can integrate everything from basic data entry to end-to-end processes. Here are some of the business-critical workflows that people automate with Zapier.
Automate your lead management and improve conversions
With Zapier, you can automate every part of your lead funnel and give yourself the best chance at converting leads. Automate everything from lead capture to outreach to reporting—and close more deals as a result.
Create more impactful campaigns with automation
Measuring campaign performance across platforms can get chaotic. Plus, digging up the right metrics costs you precious time and effort. With Zapier, you can create a centralized view of your performance, skillfully manage your lists, and ensure your campaigns drive ROI across the business.
Provide world-class support with a little help from automation
Support reps can't be productive when they have to track down crucial information for every incident or ticket. With Zapier, you can automatically send your reps the context they need to resolve tickets quickly and create a seamless customer experience.
Automate your way to actionable, up-to-date data
The days of manually exporting and importing data are over. With Zapier, you can send data where it needs to go, in the format you need it—so you can centralize your data and unlock more insights.
Resolve incidents faster with automation
Your technical support team wants to focus on tech tickets rather than admin work. With Zapier, you can automate everything from ticket creation to routing to inter-team communication—eliminating friction from incident management and increasing speed to resolution.
Learn how to automate MailerLite Classic on the Zapier blog
Learn how to automate Square on the Zapier blog
Make work flow with AI
Level up your MailerLite Classic to Square integration with AI. Extract, summarize, and transform your integration data with leading AI models like OpenAI, Anthropic, and more.
Frequently Asked Questions about MailerLite Classic + Square integrations
New to automation with Zapier? You're not alone. Here are some answers to common questions about how Zapier works with MailerLite Classic and Square
How do I integrate MailerLite Classic with Square using your platform?
To integrate MailerLite Classic with Square, you can use our platform to set up Zaps that connect and automate workflows between the two apps. You can create triggers like 'New Transaction in Square' to perform actions in MailerLite Classic, such as adding a subscriber to a group.
Can I add a subscriber to MailerLite Classic automatically when a payment is made in Square?
Yes, by setting up the 'New Order' trigger in Square, you can automatically add a subscriber to a specific group in MailerLite Classic using our platform as the action step.
Is it possible to update existing subscribers in MailerLite Classic based on activity in Square?
While you cannot directly update existing subscribers with every transaction, you can create workflows where specific activities like changes in customer details on Square can trigger updates on your MailerLite Classic list.
What are some common uses of integrating MailerLite Classic with Square?
Common uses include adding new customers from Square sales as subscribers in MailerLite Classic, sending automated follow-up emails after purchases, and managing newsletter lists based on transactions.
How can I track coupon usage from Square transactions within my MailerLite campaigns?
To track coupon usage from Square transactions within your MailerLite campaigns, you could create triggers based on coupon transaction data in Square and pass this information into custom fields or tags within your subscriber info on MailerLite.
Can I send automated payment confirmation emails via MailerLite Classic when someone buys through Square?
Yes, by integrating these platforms using our service, you can set up an automation where a confirmed purchase through Square triggers an email sent via MailerLite Classic to acknowledge receipt and provide further details.
What should I do if my integration between MailerLite Classic and Square stops working?
Should the integration fail, check your Zap history for errors. Common troubleshooting steps include verifying connection credentials for both platforms and ensuring that neither has terms or changes affecting API limits or access permissions. Re-authenticating both services within our system often resolves issues too.
About MailerLite Classic
Use MailerLite Classic to stay connected with your customers through email marketing. Create websites, landing pages, and forms to grow your audience.
Square creates tools that help sellers of all sizes start, run and grow their businesses. Square’s point-of-sale service offers tools for every part of running a business, from accepting credit cards and tracking inventory to real-time analytics and invoicing.
