Connect Mailchimp and Square to automate your work
MESA's Mailchimp to Square integration is the fastest way to sync data between the two — without touching a line of code. Choose which fields to send, how they're formatted, and when the sync happens. Start with a pre-built template, customize it with AI, or build something completely unique in under 10 minutes.
★★★★★ 4.9 rating on Shopify App Store
Why integrate Mailchimp with Square
The Mailchimp to Square integration helps you sync data, automate manual tasks, and keep your stack aligned — without writing code.
Keep Mailchimp audiences current as customers shop
When a customer's behavior changes in Shopify — a new purchase, a tag update, a loyalty tier change — MESA updates their Mailchimp profile in real time. Your segments and campaigns always reflect who your customers are right now, not who they were at the last sync.
Trigger Mailchimp campaigns from any Shopify event
When an order is placed, a product is reviewed, or a customer hits a milestone, MESA sends the signal to Mailchimp and starts the right campaign or automation. Your email marketing runs on the full range of what happens in your store, not just native Shopify triggers.
Suppress the right customers from campaigns at the right time
When a customer files a return, opens a support ticket, or enters a sensitive window, MESA updates their Mailchimp status or tags automatically. Your campaigns reach the right people without anyone managing list hygiene by hand.
Sync Square transactions into your Shopify customer records
When a purchase is made in Square — in-store, at an event, at a pop-up — MESA creates or updates the customer's record in Shopify. Your ecommerce and physical sales channels share a single view of every customer.
Keep inventory accurate across Square and Shopify
When a sale is made in Square, MESA updates the corresponding stock level in Shopify. Your online storefront reflects what was just sold in person without a manual sync between your point-of-sale and your store.
Trigger post-purchase workflows from Square transactions
When a customer buys in Square, MESA kicks off the right next step in Shopify — adding a tag, enrolling them in a Klaviyo flow, updating a loyalty record. Your in-person sales feed the same automation as your online ones.
Build any Mailchimp and Square automation
MESA helps you connect apps to automate repetitive tasks. A trigger is an event that starts a workflow, and actions are the steps that occur when it's running.
Expert support included
MESA includes hands-on support from automation experts who know how to get things done.
Free workflow setup
We'll build your first workflow with you live. Most merchants walk away with automation saving 5+ hours/week.
Fast response times
Average first response: Same day. Critical issues: Immediate escalation. Complex builds: 24-48 hours.
Managed services available
Personalized workflow reviews, and quarterly check-ins to identify new opportunities as your business grows.
Real humans, always
Chat with real automation experts (not bots). Email support 9am-5pm PST. Google Meet sessions for complex workflows.
Learn how to automate Mailchimp
Integrate Mailchimp with Square today.
Enjoy a 7-day free trial. Get your first workflow in minutes.
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