How quickly does Amazon update after something sells on Square?

A second or two in normal conditions. Square tells us the moment the sale happens and we write the new count to Amazon straight away. The reverse is the same when Amazon sells. If either side is briefly unreachable we hold the update and keep trying rather than dropping it.

Can I sync Square POS inventory with Amazon?

Yes, matched by SKU, and both platforms report changes as they happen rather than on a timer. Two things to plan for: Amazon truncates any SKU longer than 20 characters, and stock that Amazon holds and ships keeps its own count. Items you pick and post yourself sync in both directions.

Where does tracking go for Square and Amazon orders?

Into QuickSync, and only there. Neither platform has a field for a tracking number, which makes this the one gap on the pair worth designing around, because there is no second place to read it from. If your team works out of the Square dashboard or Amazon, they will need to look in QuickSync instead.

Do I have to re-list my Square products on Amazon?

No. We match your existing Square and Amazon 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 Amazon?

Yes. Set a rule once for Amazon: a percentage, a fixed uplift, or a price you type yourself. We apply it whenever the price changes, and nothing forces Square and Amazon to the same number.

Does the tracking number go back to both shops?

Not to Square and Amazon. Square has no way for us to send a tracking number back, so the shipping detail stays in QuickSync and in whichever shop the order came from. Amazon has no way for us to send a tracking number back.

Does an Amazon order get recreated on Square?

No. The order stays on Amazon. We pull it into your one QuickSync list next to your Square orders so you pack from one place, without creating a duplicate Square order for it.

What happens if a buyer cancels or I refund them on Square or Amazon?

The stock goes back. A cancellation or a refund puts the item back into your count and we send the corrected number to both Square and Amazon.

Which plan do I need for Square and Amazon?

Lite covers Square and Amazon. 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.

Square & Amazon

Square Amazon Integration: Stop Updating Stock Twice

Still updating Square and Amazon inventory separately? QuickSync connects both with Square Amazon integration, so a sale on one channel automatically updates the other and keeps your stock in sync.

Sync Square and Amazon free See exactly what syncs

From $19 a month for two shops · no credit card · connected in about ten minutes · nothing changes until you say so · Updated 15 September 2026

Square

QuickSync

Amazon

4.9 out of 5 from 3,200+ reviews across our Shopify apps

How to connect

Connect Square and Amazon in Minutes

Getting started with Square Amazon Integration takes only four easy steps. No coding and no technical knowledge needed.

Sign up/login on QuickSync

Start by signing up if you are new to QuickSync. If you already have an account, simply log in using your credentials, and you are ready to go.

~1 minute

Connect Square Account

Go to the dashboard, select Square, and log in to your Square account. Approve the access request, and QuickSync imports everything automatically.

~1 minute

Connect Amazon Account

Repeat the steps to connect your Amazon store and approve the access request. QuickSync fetches your data and matches it with your Square automatically.

~5 minutes

Set Sync Preferences. Done.

Now choose what to sync between Square and Amazon. Once set, everything stays accurate across both platforms automatically in real time.

A day, or a week

What syncs

What Syncs With QuickSync’s Square Amazon Integration

Not everything needs to be managed twice. See how QuickSync handles inventory, listings, prices, and orders across your Square Amazon integration, along with the limits to know before getting started.

SupportedSupported, with a limitNot supported

Checked against how QuickSync connects to each shop, not against either shop’s marketing.
What	Square	Amazon
Stock count	Both ways	Two-way for items you ship, one-way for FBA
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	Square does not accept one	Amazon does not accept one from us
Photos and options	Photos, sizes and colours	Photos, sizes and colours
Update speed	Under a second	A second or two
Detection speed	The moment it happens	The moment it happens

Amazon stock Amazon holds is left alone. We always send your count to Amazon, but we only take changes back for items you ship yourself. Anything Amazon stores and ships keeps its own count.

What changes

Square + Amazon Before and After: See What Changes

From spreadsheets and duplicate updates to automatic inventory sync, here is what changes with QuickSync.

Without QuickSync	With QuickSync
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 Square and Amazon 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 a second or two

Start 14-day trial, no credit card.

Follow one sale

Amazon Sale? Square Follows Instantly

Watch the order sync to Square in real time, second by second.

Amazon · order #447114:02:11

Classic Tee, Black, M1 × $24.00

SKUTS-BLK-M

Stock before this sale42

Told to us instantlyunder 1s

Square inventory updated14:02:11

ChannelStockUpdated in

Amazon41sold here

Square41+0.3s

Correcting Square takes under a second once we have the sale. The order is in your packing list with the Amazon order number on it.

The other direction is the same: a sale on Square reaches Amazon just as quickly, because Square pushes it to us the moment it happens too.

Speed and limits

Limits to Know Before Square Amazon Sync

Every integration has a few boundaries. Here’s what to know about syncing Square and Amazon with QuickSync.

Sync speed

Stock syncs in seconds

Square and Amazon send sales to QuickSync instantly, so inventory on the other channel updates in about a second or two.

Inventory limit

FBA stock stays with Amazon

QuickSync sends your stock count to Amazon, but FBA inventory stays managed by Amazon. Changes are synced back only for products you ship yourself.

Manual control

You approve every listing

QuickSync does not publish listings automatically. You review and approve listing changes before they are sent to Square or Amazon.

Where tracking lives

Fast on Stock, Different on Tracking

There is one tracking detail to know before connecting Square and Amazon: neither platform provides a tracking number field, so tracking details stay in QuickSync.

Square does not accept tracking numbers, and Amazon does not accept one from QuickSync either. Nothing is lost, but your team will need to check QuickSync for tracking details instead of relying on the Square or Amazon dashboard.

Inventory sync works differently. Both platforms send sales updates as they happen, so QuickSync does not rely on scheduled checks. A sale on Square or Amazon updates the other channel within a second or two, helping prevent stock mismatches and overselling.

Before you connect

SKUs Have Limits. Stock Has Rules.

Amazon allows up to 20 characters in a SKU, while Square allows 80. Because the same SKU connects the product across both platforms, Amazon’s shorter limit is the one that matters.

Stock syncing also depends on who fulfills the order. QuickSync sends your stock count to Amazon, and for products you ship yourself, changes from Amazon can sync back to Square. For FBA products, Amazon keeps control of the stock count because it manages the inventory, returns, and fulfillment itself.

This keeps the sync accurate instead of trying to guess what is happening inside Amazon’s warehouse.

Pricing

Sync Square Amazon for Less Than $1/Day

Start your Square and Amazon integration for just $19/month. Connect two shops and keep your stock up to date automatically.

Lite

$19/mo for two shops

1,000 items and up to eight connected integrations, with stock matched on both sides automatically. Enough for Square and Amazon on their own, at $19 a month for the two.

Start free trial

Pro

$29/mo for two shops

2,500 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.

Start free trial

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.

Compare all four plans →

FAQ

Square Amazon Integration FAQs-

Can Square POS integrate with Amazon?

Yes. QuickSync offers a reliable Square Amazon integration. You can connect Square POS to your Amazon account in minutes. Inventory, sales orders, and product data sync automatically. This reduces manual data entry and helps avoid overselling across sales channels.

What does a Square and Amazon integration sync?

The Square and Amazon integration syncs inventory, sales orders, order status, returns, and cancellations. Supported product data also syncs from Amazon to Square. All data stays aligned across two platforms in one unified platform.

How does Square and Amazon integration prevent overselling?

QuickSync uses real-time synchronization to keep stock accurate. A sale on the Square POS system updates Amazon’s inventory instantly. Amazon orders update Square in the same way. This helps you prevent overselling and manage inventory with confidence.

Can I sync inventory between Square and Amazon in real time?

Yes. Inventory syncs in real time between Square and Amazon. Every sale, return, or cancellation updates stock right away. This gives you full control over inventory across your Square store and online store.

Does QuickSync sync product listings between Square and Amazon?

QuickSync imports Amazon product listings into Square. This includes names, SKUs, descriptions, variants, barcodes, and pricing. It keeps crucial information accurate without extra work.

Can Square be used as a fulfillment store?

Yes. Square can act as a fulfillment store. You can fulfill orders, cancel synced sales orders, and automatically send tracking numbers back to Amazon. This improves order accuracy across platforms.

How long does the Square POS integration to Amazon setup take?

Setup takes only a few minutes. Connect Square, link your Amazon Seller Central account, and start syncing. The user-friendly interface makes setup simple. No coding is required, and you can start with 14 day free trial.

Is support available for Square and Amazon integration?

Yes. QuickSync offers full support for Square integration and amazon integration. The team helps with setup, inventory issues, and optimization. You can focus on your business while QuickSync handles the systems.

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