Connect Shopify Retail POS and Square to automate your work

Describe to build
Activity reports
Fully supported

MESA's Shopify Retail POS 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

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Start when...
Personalize with built-in tools...
Square logo icon
Then, do this...
Trusted by 1,000+ Shopify merchants
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Why integrate Shopify Retail POS with Square

The Shopify Retail POS to Square integration helps you sync data, automate manual tasks, and keep your stack aligned — without writing code.

Data integration icon

Data integration →

Unify in-store and online customer records automatically

When a customer makes a purchase at your POS, MESA updates their Shopify customer profile with the transaction details. Your online and in-store history live in one record without anyone reconciling them manually.

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Inventory management →

Keep inventory accurate the moment a sale happens in store

When a product is sold at your POS, MESA updates stock levels across your connected tools — your online store, your warehouse system, your ops dashboard. Your inventory reflects reality in real time, not at the end of a sync cycle.

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Customer experience →

Trigger loyalty and marketing workflows from in-store purchases

When a customer buys in store, MESA kicks off the right next step — enrolling them in a Klaviyo flow, updating a Smile.io record, applying a Shopify tag. Your in-person sales feed the same retention engine as your online ones.

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Data integration →

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.

Inventory management icon

Inventory management →

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.

Customer experience icon

Customer experience →

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 Shopify Retail POS 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.

Not just software—partnership

Expert support included

MESA includes hands-on support from automation experts who know how to get things done.

Free workflow setup

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

Fast response times

Average first response: Same day. Critical issues: Immediate escalation. Complex builds: 24-48 hours.

Ongoing optimization

Managed services available

Personalized workflow reviews, and quarterly check-ins to identify new opportunities as your business grows.

Real humans, always

Real humans, always

Chat with real automation experts (not bots). Email support 9am-5pm PST. Google Meet sessions for complex workflows.

Integrate Shopify Retail POS with Square today.

Enjoy a 7-day free trial. Get your first workflow in minutes.

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