Shopify × Square

Square Shopify Integration for Inventory Sync

SKU IQ connects your Square POS to your Shopify eCommerce, keeping stock and product data unified and up to date automatically, so you stop overselling and stop entering the same product twice to keep inventory data unified and up to date across platforms.

No credit card required to check compatibility

 SKU IQ won't change any data until you tell it to.

Lightspeed POS syncing with Shopify through SKU IQ

Works across your stack

Shopify
Square
Clover
BigCommerce
Square-Shopify

What is Square × Shopify integration?

Square Shopify Integration through SKU IQ is a no-code connection layer between your existing Square POS and Shopify eCommerce. It is not a new POS, an ERP, or an inventory suite. Square POS stays the POS; Shopify eCommerce stays the ecommerce channel. Nothing migrates off either system.

Whenever one platform sells something, the other will update the corresponding stock, keeping inventory numbers unified and up to date. Product attribute sync of fields like titles, descriptions, prices, variants, and SKUs can also be turned on either uni- or bi-directionally.

Unify both platforms and use SKU IQ to leverage the best they have to offer.

SOLUTIONS OVERVIEW

Why retailers connect Square and Shopify

Stop overselling

A sale at the brick-and-mortar location or on Shopify eCommerce updates stock on the other platform, keeping inventory unified and up to date. That means fewer surprises, fewer manual adjustments, and more confidence in what is available to sell.

No double data entry

Stop entering the same product twice. When product attribute sync is on, supported attributes such as titles, descriptions, prices, variants, SKUs, and UPCs can carry across uni- or bi-directionally based on your setup.

Keep systems you already use

SKU IQ is not a new POS, ERP, or inventory suite. It connects the Square POS and Shopify eCommerce you already use, so each platform can keep doing what it does best while inventory stays unified and up to date across platforms.

Two ways to unify your inventory

Once Square POS and Shopify eCommerce are connected, you tell SKU IQ how products relate between the two platforms.

Link existing items

SKU IQ reads all inventory in both the Square POS and Shopify eCommerce, checks for items matching by title/name, SKU, or UPC, and generates a Link Report so you can select what to link and how. Products must have the same structure on both platforms to be linked. For example, a non-variable item in Square POS will not match a variable set of items in Shopify eCommerce.

Push a catalogue across

SKU IQ sends the chosen item data across, creates an identical copy on the destination platform, and establishes a syncing relationship between the new copy and the original so future stock changes are communicated automatically between both platforms.

What syncs between Square and Shopify

Attribute
Syncs
Direction
Notes
Quantities
✔
Bi-directional
Based on both systems
Name / Title
✔
Uni- or bi-directional
Based on primary system
Alt. Name / Description
✔
Uni- or bi-directional
Based on primary system
Price
✔
Uni- or bi-directional
Based on primary system
Unit Cost
❌
NA
Not supported.
Vendor / Brand
✔
NA
Not supported.
Color
✔
NA
Not supported.
Size / Variation Name
✔
Uni- or bi-directional
Based on the primary system. Square can only have one variation attribute, and it syncs to the size field in SKU IQ. A push from SKU IQ can go to a custom field or attribute with manual setup.
SKU
✔
Uni- or bi-directional
Based on primary system
UPC (barcode)
✔
Uni- or bi-directional
Based on the primary system.
Tags
❌
NA
Not supported.
Images
❌
NA
Cannot update to a new image after the first upload.
Orders
✔
Shopify eCommerce → Square POS
Not for payment processing.

Multi-location setup? SKU IQ is built for single-location retailers syncing one POS to one Shopify eCommerce. Multi-location merchants should talk to SKU IQ about their setup before starting a trial.

Setup in minutes

What to expect during setup

You do not need developers, code, or a technical implementation project. If products already exist on both platforms, most retailers are syncing the same day.

1

Create your SKU IQ account

Shopify eCommerce + Square POS

2

Connect both platforms

Authorize both platforms through the guided flow. Your catalogues load in, and nothing is altered until you confirm what you want SKU IQ to do.

3

Run a link report

SKU IQ reads all inventory in both platforms and matches items by title/name, SKU, or UPC. Confirm the matches you want, remembering that products must have the same structure on both platforms to link. A non-variable Square POS item will not match a variable set in Shopify eCommerce.

4

Review unmatched items

Fix spelling differences or push products across. A push creates an identical copy on the destination platform and establishes a syncing relationship with the original.

5

Validate Sync

Validate the first sync with one or two products so you can see quantities stay unified and up to date.

6

Choose sync & go live

Set optional product attribute sync for supported fields, either uni- or bi-directionally.

Migrating a large catalogue

During the trial, customers are limited to 50 product pushes. Bulk pushes are available for larger catalogues for a one-time fee; contact Support for a quote.

When SKU IQ pushes a catalogue, it sends the chosen item data across, creates an identical copy on the destination platform, and establishes a syncing relationship with the original so future stock changes are communicated between both platforms.

Shop to website illustration

Before you connect

Your Shopify eCommerce plan must support inventory tracking and third-party apps. Your Square POS plan must also support inventory tracking and third-party apps.

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Loved by Square + Shopify sellers

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“SkuIQ is our go-to solution for using Clover POS with Shopify. Responsive customer service from the dev team, ongoing product improvements and reliable sync. Highly recommended.”

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“We could not run our business without SkuIQ. They made the process SEAMLESS when we transitioned our Shopify store to TikTok Shop.”

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What to know

Shopify & Square integration FAQs

Does Square integrate with Shopify?
How do I sync Square inventory with Shopify?
Do I need SKUs or barcodes on my products?
Can I keep using Square and still sell on Shopify eCommerce?
Do I need to migrate off Square?
Do product images sync between Square and Shopify?
Will connecting SKU IQ change my existing data?
What happens if a product doesn't match?
Can I try it first?
SIMPLE, ORDER-BASED PRICING

How much does the Square – Shopify integration cost?

Every SKU IQ plan keeps inventory quantities unified and up to date between Square POS and Shopify eCommerce with unlimited linked items. Higher tiers add product attribute syncing and faster sync for larger catalogues.