Latenode
Square
Mailchimp

Automatically sync new Square customers to Mailchimp lists

This automation allows businesses to automatically sync new customer information from Square, a popular point-of-sale system, to a Mailchimp audience list.

When a new customer is created in Square, this integration will add them as a new subscriber to the specified Mailchimp audience. This helps businesses keep their customer contact information up-to-date across both platforms, enabling them to more effectively engage with customers through marketing campaigns and communications.

Updated Apr 2, 2026Est. run: 5sEst. cost: $0.0003
How Latenode estimates time and cost

Latenode bills workflow runs in credits: 1 credit = 30 seconds of processing. Minimum charge per run depends on your plan. Plug-and-Play (PnP) AI nodes are billed separately—each PnP token is $1 USD, charged pay-as-you-go at vendor cost plus a small processing fee, with no API keys required.

Full pricing — how credits work →
Integrations & automation

Workflow preview

What this template does

  • Extracts new customer data from Square point-of-sale system
  • Normalizes customer data fields to match Mailchimp audience schema
  • Stores new customer data in Mailchimp audience as new subscribers
  • Filters out existing Mailchimp subscribers to avoid duplicates
  • Provides up-to-date customer contact information for marketing campaigns

How it works

1
Trigger

New Square Customer Created

When a new customer is created in Square, this integration is triggered.

2
Action

Add Customer to Mailchimp Audience

The new Square customer's information is then automatically added as a new subscriber to the specified Mailchimp audience list.

3
Logic

Sync Customer Details

The customer's contact details, such as name and email, are synced from Square to the Mailchimp audience list, keeping the information up-to-date across both platforms.

4
Action

Enable Targeted Marketing

With the customer's information now in Mailchimp, the business can more effectively engage them through marketing campaigns and communications.

Setup guide

1

Add Square credential

Add your Square API credential in the Latenode Credentials panel. Select the 'Square' integration and provide your Square API key.

2

Add Mailchimp credential

Add your Mailchimp API credential in the Latenode Credentials panel. Select the 'Mailchimp' integration and provide your Mailchimp API key.

3

Configure Square trigger

In the Latenode visual builder, add a 'Square' node and configure it to trigger on 'New Customer' events.

4

Configure Mailchimp action

In the Latenode visual builder, add a 'Mailchimp' node and configure it to 'Add/Update Subscriber' to the desired Mailchimp audience list using the data from the Square 'New Customer' trigger.

5

Review and save

Review your configured nodes and connections in the Latenode visual builder, then save and publish your workflow.

Requirements

Square API access with read and write permissions to customers
Mailchimp audience API access with read and write permissions to contacts
Mailchimp audience ID to sync new customers to
Latenode workspace with the 'square' and 'mailchimp' nodes configured

FAQ

Common questions about this template

Each run uses credits on your Latenode plan. We charge for processing time (1 credit = 30 seconds). Your actual cost depends on your plan and how long the run takes. See pricing plans for plans and how credits work.
Contact support →

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