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Real-time Shopify POS inventory management. Every store maps to a warehouse, register sales update all channels in seconds, and wholesale and EDI stock stays protected.

AIMS360 Shopify POS integration icon
Shopify POS · Retail stores · Ship from store

Shopify POS inventory management for apparel and retail brands

AIMS360 connects Shopify POS to the same stock record that runs your online store, wholesale, EDI, and warehouse. A sale at the register updates every channel in real time, and the register only ever sells what the business can really deliver.

On the Shopify App Store Free to install Works with Shopify and Shopify Plus Shopify Partner Directory listed
What is Shopify POS inventory management

What is Shopify POS inventory management?

Shopify POS inventory management is the process of keeping the stock number at your retail register accurate and connected to every other place the same units can sell. Shopify POS tracks quantities per location and handles the sale itself. What it cannot see is the rest of the business: wholesale orders, EDI purchase orders from retailers, marketplace listings, and warehouse movements. Once a brand sells through more than the register, the accurate number has to be calculated in a system that sees everything, then pushed to the register.

That is what AIMS360 does. It holds the master stock record, subtracts what every channel has already committed, and publishes the sellable remainder to each Shopify POS location and each online store in real time. A unit sold at the register stops being sellable online within seconds, and a unit committed to a retailer purchase order never shows up at the register at all.

The register also stops being an island. Sales, returns, and exchanges made in store land in the same order queue as website, wholesale, and EDI orders, so reporting, margin, and replenishment all read from one place.

Key takeaways

  • One record, every sales channel. Shopify POS and the Shopify online store are two of them. Wholesale, B2B platforms, marketplaces, and EDI orders from major retailers are separate channels drawing on the same stock, which is why the register cannot calculate the right number on its own.
  • Real time in both directions. A register sale updates online availability in seconds, and a warehouse receipt updates what the store can sell.
  • Each store is a warehouse. Every retail location maps to an AIMS360 warehouse, with its own stock, replenishment, and transfers.
  • Ship from store built in. Online orders can fulfill from whichever store or warehouse holds the unit.
  • Same barcode everywhere. The code on the warehouse shelf scans at the register, on a pick ticket, and on a retailer carton.
  • Styles, colors, and sizes stay structured. The size and color matrix is built once in AIMS360 and lands at the register already correct.
Shopify POS not updating inventory

The four pain points a connected register solves

The complaint usually reads as one line: Shopify POS is not updating inventory. Underneath it are four specific, expensive problems. Naming them is the first step to fixing them.

01

The register sells what wholesale already claimed

An EDI order from a retailer claims 400 units of the best selling size, and the store sells against the same stock all weekend. The result is a short shipment, a cancelled order, or a chargeback. Solved: wholesale and EDI commitments are subtracted before the register ever sees a number.

02

Store counts get reconciled by spreadsheet

The register says one thing, the warehouse system says another, and somebody spends hours every week deciding who is right. Solved: there is only one count. Every channel reads it and writes back to it, so there is nothing to reconcile.

03

Back room stock is invisible to the website

A size sells out at the distribution center while eight units sit in a store back room, and the website says sold out. Those are sales lost while stock gathers dust. Solved: every store is a warehouse, and ship from store makes its units sellable online.

04

Counting means closing the store

Full physical counts are disruptive, so they get postponed, so the drift compounds until the numbers are fiction. Solved: scanner driven cycle counts by location or bin, run on the floor in minutes, keep accuracy continuous without closing.

One cause sits under all four: stock changes in places the register cannot see. AIMS360 removes it by making every channel read from one record. The register displays the sellable portion of a number that already accounts for every commitment in the business, and every sale it makes flows back into that same record.

What syncs with Shopify POS

What syncs between AIMS360 and Shopify POS

AIMS360 is the master record for product and stock. Shopify POS is the register. Each field has one owner and one direction, which is what keeps the store floor and the back office from fighting each other.

AIMS360 → Shopify POS pushed out Shopify POS → AIMS360 pulled back Both ways

Sellable stock per store

Real time

Each retail location receives its own availability. Every allocation, receipt, transfer, and shipment anywhere in the business recalculates it.

Styles, colors, sizes

On publish

The size and color matrix is built once in AIMS360 and arrives at the register as structured variants, not hand typed products.

SKUs and barcodes

On publish

The same code scans in the warehouse, at a 3PL, on a retailer carton, and at the register. One label run covers everything.

Prices and images

On publish and edit

Product content lives in AIMS360 PIM and feeds the register and every other channel from there.

Register sales

Automatic import

In store sales land in the same order queue as website, wholesale, and EDI orders, so margin and sales reporting read by channel from one screen.

Customer records

With the sale

Customer details from the register flow into AIMS360 CRM without re-keying.

Store transfers and replenishment

On processing

Transfers between the distribution center and stores, and store to store, post on both sides so counts stay true during the move.

In store returns and exchanges

On processing

Returns restock to the right store or warehouse and the availability change pushes back out.

You define what the register can sell

Customizable inventory templates

The number each register sees is not a fixed formula. AIMS360 inventory templates are customizable rulesets that decide exactly which stock counts as sellable for a given location, so a store can draw on its own back room only, or also see the distribution center, or sell against incoming production up to a chosen date. Wholesale and EDI commitments come out before the register ever sees a number.

Common variables brands build into a template:

Stock by store or warehouse Bin locations Incoming production to a date Allocated vs unallocated orders 3PL and virtual warehouses Channel and account rules Style, color, size splits
Ship from store and multi-store

Ship from store, multiple stores, and one distribution center

In AIMS360, every physical location is a warehouse: each retail store, the distribution center, any 3PL, a showroom. That single idea is what makes omnichannel retail work in practice.

Ship from store. An online order can fulfill from whichever location holds the unit. A size that sold out at the warehouse but sits in a store back room is still sellable online, and the pick happens where the unit is.

Store replenishment. Minimum stock levels per location trigger replenishment from the distribution center, and in store movements such as back room to sales floor are tracked so the count survives the day.

Multiple stores, one truth. Brands running several stores see stock, sales, and margin per location and in total, from the same record the online store and wholesale run on. Adding a store is adding a warehouse and a register, not adding a new system.

Barcode scanning

Barcode scanner operations Shopify POS does not have

Shopify POS scans a barcode to sell. It does not manage the inventory work that happens before the sale: moving stock inside the store, bringing stock in, and counting it. AIMS360 supplies that layer with mobile barcode scanners, which is how it supercharges the register instead of just syncing with it.

In-store moves

Scan units from backstock to front stock and back, so the back room and the sales floor each hold a true count instead of one blended store number.

Transfers in and between stores

Receive transfers from production, the distribution center, or another store by scan. The transfer posts on both sides, so counts stay true while stock is on the move.

Cycle counts

Count by location or bin on a rolling schedule, on the floor, in minutes. The physical count and the system count reconcile without closing the store.

The labels themselves are generated by AIMS360 at the style, color, and size level, and the same code works everywhere the unit travels: receiving at the warehouse, picking, the store back room, the register, and UCC-128 cartons going to retailers. Nothing gets relabeled between the warehouse and the store, and the register scans the same barcodes the scanners do.

Connect Shopify POS

How to connect Shopify POS to AIMS360

1

Install the AIMS360 app from the Shopify App Store

The AIMS 360 Fashion Business ERP app is free to install and connects your Shopify store, including POS, without middleware.

2

Map each store location to an AIMS360 warehouse

Every Shopify POS location pairs with an AIMS360 warehouse, and the distribution center and any 3PL get their own. This mapping is what makes per store stock and ship from store possible.

3

Push styles, variants, prices, and barcodes

Styles built in AIMS360 publish to Shopify with the full size and color matrix, so the register sells structured variants that match the warehouse labels.

4

Choose the inventory template per location

Decide what each register can sell: its own store only, store plus distribution center, or a custom ruleset. Wholesale and EDI commitments are excluded before publishing.

5

Go live with scanners and real time sync

Register sales, returns, and exchanges start flowing into the AIMS360 order queue, and availability updates move both ways in real time from day one.

POS app vs ERP comparison

Standalone POS app, general retail system, or consumer brands ERP

Three ways brands run retail stock, and where each one stops.

How a standalone POS inventory app, a general retail system, and AIMS360 handle the parts of the job.
Capability POS inventory app General retail system AIMS360
Per store stock and transfers Yes Yes Yes
Scanner ops: backstock moves, transfers, cycle counts No Partial Mobile scanners built in
Style, color, size as structured data Flat SKUs Partial Native matrix
Wholesale and B2B on the same stock No Rare Built in
EDI purchase orders from retailers No No Built in, 350+ retailers
Production and incoming stock No No Sell against WIP to a date
Warehouse management and 3PL No Partial Native WMS and 3PL network
Ship from store Limited Sometimes Any location fulfills
Middleware required Often Often None

A POS inventory app keeps the register tidy. A general retail system runs stores well but stops at wholesale and EDI. AIMS360 runs the register as one channel of the whole business, which is the only arrangement where the number at the register can be trusted.

Fashion POS system

A fashion POS setup that understands styles, colors, and sizes

Most register software treats a product as one flat SKU. Apparel does not work that way. One style can carry forty or more sellable variants once colors multiply by sizes, and the register has to sell, return, and count at that level. AIMS360 holds style, color, and size as structured data, so the register, the warehouse, and the sales report all speak the same matrix.

AIMS360 is a consumer brands ERP, and the same register logic runs across every category it supports: fashion and apparel, footwear, jewelry, bags and accessories, cosmetics, beauty and personal care, outdoor and sporting goods, wellness and supplements, home, furniture and lifestyle, household and home care, baby and children's, and pet products. If the brand sells physical product through a store and anywhere else at the same time, the operating model is the same.

40+
Years building apparel software
10,000+
Brands served
350+
Retailers via built-in EDI
$45B+
Order volume processed
Retail brands running it

What brands running stores report

Published publicly on the AIMS360 listing in the Shopify App Store.

"AIMS360 integration with Shopify has been a life saver for managing styles, orders, and inventory for e-commerce and retail store. Styles, colors, and sizes can easily be created or mapped to Shopify. The warehouse management keeps all the inventory in bin locations. The mobile scanners allow for quick cycle counts, picking, and shipping."

Kitowares, United States. About 3 years using the app.

"Helped our efficiency and accuracy in managing our online stores. The integration's robust features have empowered us to scale our e-commerce operations with confidence. Great support from the AIMS360 team keeps us running 24x7."

Los Angeles Apparel, United States. About 4 years using the app.

Connected integrations

The rest of the retail stack

Shopify POS FAQ

Shopify POS inventory management: frequently asked questions

The questions retail and apparel brands ask before connecting the register to the rest of the business.

Yes, for the register itself. Shopify POS tracks quantities per location, supports basic transfers, and adjusts stock on each sale. What it does not see is the rest of the business: wholesale commitments, EDI purchase orders from retailers, marketplaces, production, or a 3PL. Brands selling through more than the register connect an ERP such as AIMS360 so the register displays a number that already accounts for every channel.

Usually because stock changed somewhere the register cannot see: an online sale, a wholesale allocation, a warehouse receipt, or a return processed elsewhere. The register is only as current as the last thing that told it about the outside world. With AIMS360 as the master record, every change recalculates availability once and pushes the new number to each location in real time, so the register stops lagging behind the business.

Yes. A register sale posts into AIMS360, availability recalculates, and the new sellable number publishes to the online store within seconds. The reverse is also true: an online sale reduces what the register can sell. Both are reading the same record, so a unit can only be sold once.

For apparel the deciding factor is whether the system treats style, color, and size as structured data, because one style can carry forty or more sellable variants and the register has to sell, return, and count at that level. The second factor is whether register stock connects to wholesale, EDI, and the warehouse. Shopify POS handles the register experience well, and AIMS360 supplies the structured product data and the connected stock record behind it.

An omnichannel setup needs three things: per store stock that rolls up to one total, fulfillment from any location, and a record that also covers the channels stores cannot see, such as wholesale and EDI. Shopify POS plus AIMS360 covers all three. Each store maps to an AIMS360 warehouse, every location reads and writes the same record, and online orders can ship from whichever store holds the unit.

Yes. Because each store is an AIMS360 warehouse, an online order can allocate and fulfill from any location that holds the unit. A size sold out at the distribution center but sitting in a store back room stays sellable online, and the pick ticket goes to the store.

Yes. Each location's sellable number is defined by a customizable inventory template: its own store only, store plus distribution center, incoming production up to a chosen date, or any ruleset built from warehouses, bins, allocations, and channel rules. Wholesale and EDI commitments are excluded before the register sees a number.

Yes. AIMS360 generates barcodes at the style, color, and size level, and the same label scans at receiving, picking, the store back room, the register, and on retailer cartons. Nothing gets relabeled between the warehouse and the store, and mobile scanners run cycle counts on the floor.

A return processed at the register posts into AIMS360, restocks to the correct store or warehouse, and the availability change pushes back to every channel. Exchanges post the outgoing and incoming units in one transaction, and online returns can restock to store locations too.

Yes. Brands running Square registers connect through the AIMS360 Square POS integration, and the operating model is the same: each store maps to a warehouse, sales flow into one order queue, and the register sells from the master record.

The app installs from the Shopify App Store in minutes, and the real work is mapping locations to warehouses, publishing styles, and choosing inventory templates. For most brands that is a guided setup with the AIMS360 team measured in days, not months, and it runs alongside the existing store without downtime.

No. The AIMS360 Shopify integration, including POS, is built and maintained in house and connects directly. There is no third party connector to license, and no second support queue when something needs attention.

Yes. Register sales land in the same order queue as website, wholesale, marketplace, and EDI orders, so sales, margin, and sell through read by channel and in total from one place, without exporting three systems into a spreadsheet.

Yes. AIMS360 is a consumer brands ERP, and the register model is the same across footwear, jewelry and accessories, cosmetics and personal care, outdoor and sporting goods, wellness, home and lifestyle, household care, baby, and pet products. Apparel is one of the categories it serves, with the size and color matrix as the hardest test.

Not on its own. Shopify POS scans to sell, and its stock tools stop at basic adjustments. The inventory work inside the store comes from AIMS360 mobile barcode scanners: moving units between backstock and front stock, receiving transfers from production, the distribution center, or another store, and running cycle counts by location or bin without closing. That layer is what keeps the number at the register true.

See it with your own stores

Bring a style with a real color and size matrix and we will map a store to a warehouse on the call, then show what happens at the register when a wholesale order claims the same stock. Thirty minutes, no slide deck.

About the author

Shahrooz Kohan is Chief Executive Officer of AIMS360, where he has spent more than two decades building operating software for consumer brands. AIMS360 has served 10,000+ brands since 1984 and processes $45B+ in omnichannel order volume, including retail stores running Shopify POS.