Connect Klaviyo and Square to automate your work

Describe to build
Activity reports
Fully supported

MESA's Klaviyo 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...
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Then, do this...

Start your first automated workflow

Use pre-made workflow templates to get started quickly.

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Why integrate Klaviyo with Square

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

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Data integration →

Keep Klaviyo profiles 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 Klaviyo profile in real time. Your segments and flows always reflect who your customers are right now.

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Customer experience →

Trigger Klaviyo flows from any Shopify event

When an order is placed, a subscription starts, or a customer hits a milestone, MESA sends the signal to Klaviyo and starts the right flow. Your email automation runs on the full range of what happens in your store, not just native Shopify triggers.

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Order automation →

Suppress the right customers from campaigns automatically

When a customer files a return, opens a support ticket, or enters a sensitive window, MESA updates their Klaviyo suppression list or profile status. Your campaigns reach the right people at the right time without manual list hygiene.

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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.

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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.

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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 Klaviyo 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.

Learn how to automate Klaviyo

Integrate Klaviyo with Square today.

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

Try MESA today →