Squarespace eBay integration that keeps one stock count
For Squarespace shops that also list on eBay. Sales are the easy half of this pair and stock edits are the slow one: neither Squarespace nor eBay pushes us a number you change by hand inside it, so both are found on our next look rather than announced. Squarespace tells us the moment something sells, so eBay is corrected in a second or two. eBay does not announce a sale, so we check it every couple of minutes instead.
From $19 a month for two shops · no credit card · connected in about ten minutes · nothing changes until you say so · Updated 27 August 2026
Squarespace
eBayHow to connect Squarespace and eBay
Four steps and about ten minutes. The two connections are a login each; most of the time is us matching your catalogues, and nothing changes until you switch it on.
Connect Squarespace
You generate an API key in Squarespace and paste it into QuickSync.
Connect eBay
You sign in to eBay and grant QuickSync access to the selling account.
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.
What a Squarespace eBay integration actually moves
One row per job, based on how QuickSync connects to Squarespace and eBay today. Where a side does not allow something, the cell says so.
| What | Squarespace | eBay |
|---|---|---|
| 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 | A second or two |
| How fast it tells us | Orders instantly, stock every two minutes | We check every two minutes |
Running Squarespace and eBay by hand
Nearly every problem selling on both Squarespace and eBay comes from each side keeping its own count. Sell the last one twice and you oversell somebody.
| 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 Squarespace and eBay 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 eBay is found within two minutes and Squarespace is corrected straight after |
One eBay order, start to finish
Real timings, including the wait. A sale on Squarespace is the quicker direction, because Squarespace tells us and eBay does not.
eBay · order #447114:02:11eBay41sourceSquarespace41+0.3sCorrecting Squarespace takes under a second once we have the sale. The order is in your packing list with the eBay order number on it, and a tracking number added later goes back to eBay on its own.
The other direction is faster: a sale on Squarespace reaches eBay in a second or two, because Squarespace pushes it to us the moment it happens.
The limits: know them before you connect
Every Squarespace eBay integration has constraints. These are the ones that apply here.
eBay waits; Squarespace does not
A Squarespace sale reaches eBay in a second or two. An eBay sale reaches Squarespace on our next look, which is within two minutes. Hold back a little safety stock and that window stops mattering.
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 Squarespace or eBay
Copying a listing from Squarespace to eBay (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.
This pair is checked more than it is told
Squarespace announces orders. Everything else here we go and look for.
Three of the four directions on this pair run on a check rather than an announcement. Squarespace tells us the moment an order is placed, and that is the one live signal. A stock figure you edit by hand inside Squarespace comes with no announcement, so we look every couple of minutes. eBay announces nothing at all, for stock or for orders, so it sits on the same short timer.
None of that makes the pair unworkable, but it does mean you should not expect either side to react within seconds to a number you typed yourself. If you have just counted a shelf and corrected the figure in Squarespace, give it a couple of minutes before you expect the eBay listing to agree. Knowing that up front beats refreshing a page and assuming the connection has broken.
The practical answer is headroom. Keep a unit or two spare on the items that sell fastest and the timer stops mattering, because the window in which the two sides can disagree is only ever a couple of minutes wide. Where it does matter is a one-off item you cannot afford to oversell, and for those the safer habit is to end the eBay listing yourself.
eBay's fifty characters is the ceiling
Squarespace takes 60, so the marketplace side sets the rule.
Items match by SKU and the shorter limit governs. Squarespace stores up to 60 characters and eBay takes 50. The two are close enough that this is a check rather than a rebuild, but those ten characters are exactly where a catalogue built to Squarespace’s limit gets caught. Anything over 50 is truncated on the way to eBay and stops matching the item it came from.
Because we truncate rather than refuse, nothing about it looks wrong. The listing updates, no error appears, and the shortened SKU pairs with nothing at all. What you see months later is a count on one side that has stopped following the other, with no event to blame it on. Ten minutes sorting your catalogue by SKU length before you connect avoids the whole thing.
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 Squarespace and eBay 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 eBay?
Within two minutes. eBay has no way of telling us the moment a sale happens, so we check it on a short timer instead. Once we have the sale, correcting Squarespace takes under a second. The other direction is much quicker: Squarespace tells us straight away. If either shop has an outage, we hold the update and retry until it goes through.
Can Squarespace and eBay share inventory?
Yes, with a tool between them, because neither reads the other’s catalogue. QuickSync matches items by SKU and holds one count, so an eBay sale lowers your Squarespace stock and a website order lowers the eBay listing. Design SKUs to 50 characters or fewer, since that is eBay’s limit and the tighter of the two.
How fast does stock update between Squarespace and eBay?
Squarespace reports orders immediately. Everything else on this pair runs on a check every couple of minutes: stock you edit yourself in Squarespace, plus both stock and orders on eBay, because eBay does not announce them. Expect a couple of minutes rather than seconds, and keep a little safety stock on fast movers.
Do I have to re-list my Squarespace products on eBay?
No. We match your existing Squarespace and eBay 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 eBay?
Yes. Set a rule once for eBay: a percentage, a fixed uplift, or a price you type yourself. We apply it whenever the price changes, and nothing forces Squarespace and eBay 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 Squarespace or eBay the order came from, and the buyer gets the shop’s normal notification.
Can I create an order on eBay from a sale on Squarespace?
No. Squarespace and eBay hand orders out and do not accept orders created elsewhere. We pull both into one packing list so you still work from one place; each order stays on the channel it came from.
What happens if a buyer cancels or I refund them on Squarespace or eBay?
The stock goes back. A cancellation or a refund puts the item back into your count and we send the corrected number to both Squarespace and eBay.
Which plan do I need for Squarespace and eBay?
Lite covers Squarespace and eBay. 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.
Selling somewhere else as well?
Each combination has its own page, including the limits that apply to that pair, not a generic Squarespace 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 Squarespace and eBay 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 Squarespace and eBay stay in step.