Shopify Squarespace integration that keeps one stock count
Shopify and Squarespace do not connect on their own, so it comes down to two choices: embed Shopify’s Buy Button in a Squarespace page and run one shop, or keep two real shops and use an app to hold their stock counts level. For sellers running Shopify and Squarespace side by side. Shopify is the more capable of the two: it can be handed an order to fill where Squarespace cannot, and it takes a 255-character SKU against Squarespace’s 60. Both shops tell us the moment something sells, so the other is corrected in under a second. Stock you edit yourself inside Squarespace is the slower path: we pick that up every couple of minutes.
No credit card · connected in about ten minutes · nothing changes until you say so · Updated 14 August 2026
Shopify
SquarespaceWhat a Shopify Squarespace integration actually moves
One row per job, based on how QuickSync connects to Shopify and Squarespace today. Where a side does not allow something, the cell says so.
| What | Shopify | Squarespace |
|---|---|---|
| Stock count | Both ways | Both ways |
| New listings | We can create and update | We can create and update |
| Prices | Sent, with your rule applied | Sent, with your rule applied |
| Orders in | Into QuickSync | Into QuickSync |
| Tracking back | Sent to the order | Sent to the order |
| Photos and options | Photos, sizes and colours | Photos, sizes and colours |
| How fast we update it | Under a second | Under a second |
| How fast it tells us | The moment it happens | Orders instantly, stock every two minutes |
Running Shopify and Squarespace as two separate shops
Two online shops with two counts is how you oversell: a sale on Shopify can still show as available on Squarespace until somebody notices.
| Two shops, run by hand | Two shops, connected |
|---|---|
| The last one sells in both shops within the same hour | Whichever shop sells it, the other one drops to match |
| Typing the same stock numbers into Shopify and Squarespace each morning | One count, sent to both, without anyone opening a spreadsheet |
| Changing a price means editing the same product twice | Change it once and each shop gets the price you set for it |
| Orders in two dashboards, matched up by hand at the end of the week | Every order already matched to the right product |
| A refund leaves your numbers wrong until someone notices | A refund puts the stock back and tells both shops |
| Guessing how stale each shop’s number is | A sale on either shop reaches the other in under a second |
One Squarespace order, start to finish
Real timings, second by second.
Squarespace · order #447114:02:11Squarespace41sourceShopify41+0.3sCorrecting Shopify takes under a second once we have the sale. The order is in your packing list with the Squarespace order number on it, and a tracking number added later goes back to Squarespace on its own.
The other direction is the same: a sale on Shopify reaches Squarespace just as quickly, because Shopify pushes it to us the moment it happens too.
Connecting Shopify and Squarespace takes about ten minutes
Most of that is us matching your catalogues. The two connections themselves are a login each.
Connect Shopify
You approve QuickSync from the Shopify app store. Shopify asks which permissions to grant and you can withdraw them from the Shopify side at any time.
Connect Squarespace
You generate an API key in Squarespace and paste it into QuickSync.
Let it match your products
We line the two catalogues up by SKU, then by title, and hand you a short list of anything we could not match. You decide what happens to those.
Watch, then switch it on
Leave it watching for a few days and check the numbers agree. When you are happy, let it start making changes, one shop at a time.
The limits: know them before you connect
Every Shopify Squarespace integration has constraints. These are the ones that apply here.
Sales are instant; stock edits wait
A sale on either side reaches the other in under a second. Stock you edit yourself inside Squarespace is the slower path: we check that every couple of minutes.
Squarespace stock is checked, not pushed
Squarespace tells us about orders straight away but not about stock you edit yourself there, which we pick up on our next look a couple of minutes later.
Nothing publishes itself to Shopify or Squarespace
Copying a listing from Shopify to Squarespace (or the other way) always waits for you to look at it. Stock is the only thing that moves on its own, and only once you have turned it on.
Where new products go
Squarespace files every product under a store page. There’s no unfiled.
Shopify is happy to hold a product that belongs to no collection. Squarespace isn’t: every product sits on a store page, and there’s no way to create one without naming the page it goes on. So you pick that page once in settings, and everything we publish on the Squarespace side arrives there.
Move things afterwards inside Squarespace and we won’t drag them back — the page is where a product starts, not where we hold it. If you later delete or rename that page, we stop creating, clear the setting and email you, rather than filing your products somewhere you didn’t choose.
The first read of your Squarespace catalogue takes physical products only. A digital download has no count to keep in step with anything, so leaving it out is the right default rather than a gap in the import.
Two clocks, one shop
Squarespace announces its sales and says nothing about its stock.
Most channels are either instant or on a timer. Squarespace is both at once, and the split decides which direction you can trust to the second. It tells us the moment an order is placed, so a Squarespace sale reaches Shopify straight away. It says nothing when you edit a stock number inside Squarespace, so we go and look for that ourselves, every two minutes.
The direction that matters is already the fast one. Overselling is caused by sales, and sales are pushed to us. The two-minute wait applies to a correction you typed in yourself — you knew that number before we did, so nothing is exposed while it travels.
Which leaves one case worth planning around: a stock-take. Re-count a shelf, type the new figures into Squarespace, and for up to two minutes your other shops still hold the old ones. Fine if nothing sells in that window, and a race you didn’t need if something does. Do the counting on the Shopify side instead and there’s no window at all.
Which count the site shows
Squarespace counts in one place. Shopify might not.
Squarespace has no idea of locations: one number per variant, and that’s the whole model. Shopify does, and plenty of sellers use them — a shop floor, a garage, a third-party warehouse — which raises a question no integration should answer on your behalf. Which of those numbers should the website show?
We don’t add them up. Adding up is the answer that sells the most and ships the least, because it puts stock on the website that’s sitting somewhere the website can’t send it from. You connect the Shopify location that actually fills Squarespace orders, and that location’s count is what Squarespace carries.
If Shopify runs a single location too, there’s nothing to decide and you’ll never meet this setting — the two are paired for you. It only appears when there’s a real choice behind it.
The Buy Button is one shop, not two
Embedding Shopify products in a Squarespace page leaves a single catalogue. There is nothing to keep in step.
Most answers to this question point at Shopify’s Buy Button, and for a good number of people that is the right one. It’s a sales channel inside Shopify that hands you a block of embed code; you drop that into a Squarespace code block and your Shopify products appear on the page, with the checkout still Shopify’s. The catalogue never leaves Shopify.
Which is exactly why there is nothing to sync. One catalogue, one stock figure, one place the orders arrive. What you have built is a Squarespace page showing a Shopify shop rather than a Squarespace shop — the items aren’t in Squarespace Commerce, so its own product pages, stock screen and order history stay empty.
The other setup is two real shops: products in Squarespace Commerce holding their own stock, products in Shopify holding theirs, each taking orders through its own checkout. Now there are two numbers for one shelf, and something has to keep them level. That’s the case we’re built for, and it’s worth settling which of the two you’re in before you connect anything.
Two shops fits the smallest plan
Your catalogue size picks the plan, and your plan price covers two connected shops with every shop after that adding it again. Three shops on Lite is $38 a month.
Lite
$19/mo for two shops1,000 items and up to eight connected integrations, with stock matched on both sides automatically. Enough for Shopify and Squarespace on their own, at $19 a month for the two.
Pro
$29/mo for two shops2,500 items and up to eight connected integrations. Listings and orders sync here as well as stock. Most sellers running two shops properly end up here.
Ultra at $69 and Ultra+ at $99 add larger catalogues, price rules and setup help. Every plan starts with a 14-day free trial and no card.
Questions people ask about this pair
How quickly does Squarespace update after something sells on Shopify?
Under a second in normal conditions. Shopify tells us the moment the sale happens and we write the new count to Squarespace straight away. The reverse is the same when Squarespace sells. If either side is briefly unreachable we hold the update and keep trying rather than dropping it.
Does Squarespace integrate with Shopify?
Not natively. The two are competing platforms and neither builds a link to the other, so it takes something in between, and there are two routes that solve different problems. Shopify’s Buy Button embeds Shopify products into a Squarespace page, which leaves one catalogue and one stock count. If instead you run a Squarespace Commerce shop and a Shopify shop as separate stores, QuickSync matches products by SKU and keeps both counts level. Squarespace caps a SKU at 60 characters against Shopify’s 255, so the shorter limit is the one both have to fit.
Can I use the Shopify Buy Button on Squarespace?
Yes. It is a Shopify sales channel that produces a block of embed code, and Squarespace accepts it in a code block. What it does not do is create a Squarespace shop: the products stay in Shopify, the checkout stays in Shopify, and nothing reaches Squarespace Commerce. That also means there is no second stock count to keep in step, so if the Buy Button covers what you need, you do not need us as well.
Can I just import my Shopify products into Squarespace with a CSV?
You can, and Squarespace documents that route: export the file from Shopify and bring it in through Products and Services. It copies a catalogue rather than connecting one. The file is right the moment you export it and out of date after the next sale on either side, and nothing in it keeps the two shops level afterwards. Useful once, no help from then on.
Do I have to re-list my Shopify products on Squarespace?
No. We match your existing Shopify and Squarespace listings by SKU first, then by title, and hand you a short list of whatever we could not match. You can also copy a listing from one side to the other if you want it in both places; that step always waits for you.
Can I charge a different price on Squarespace?
Yes. Set a rule once for Squarespace: a percentage, a fixed uplift, or a price you type yourself. We apply it whenever the price changes, and nothing forces Shopify and Squarespace to the same number.
Does the tracking number go back to both shops?
Yes. When you add a tracking number to an order, we send it back to whichever of Shopify or Squarespace the order came from, and the buyer gets the shop’s normal notification.
Does a Squarespace order get recreated on Shopify?
No. The order stays on Squarespace. We pull it into your one QuickSync list next to your Shopify orders so you pack from one place, without creating a duplicate Shopify order for it.
What happens if a buyer cancels or I refund them on Shopify or Squarespace?
The stock goes back. A cancellation or a refund puts the item back into your count and we send the corrected number to both Shopify and Squarespace.
Which plan do I need for Shopify and Squarespace?
Lite covers Shopify and Squarespace. Lite is $19 a month for two shops and holds 1,000 items, with up to eight connected integrations. You would move up a plan for catalogue size, and your bill goes up by another $19 if you connect a third shop.
Guides for running Shopify and Squarespace together
Setup walkthroughs, edge cases and comparisons that go deeper than this page — each one is a sub-question, not another page chasing the same head term.
Selling somewhere else as well?
Each combination has its own page, including the limits that apply to that pair, not a generic Shopify write-up with the logo swapped.
Or read about one shop on its own
Every channel has a page covering exactly what syncs, what does not, and how fast.
Connect Shopify and Squarespace and watch one correct the other
Make one test sale and watch the other shop’s count drop. If it doesn’t work the way this page describes, you’ve spent ten minutes and no money.
No credit card required
Setup guides for this pair
Connect each shop with its own walkthrough, then come back to this page for how Shopify and Squarespace stay in step.