How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Data as of Sep 26, 2026 · Based on 317 AI responses from ChatGPT Search and Google AI Mode · See how Parse measures this
To enable endless aisle, choose a POS system that offers deep integration between your storefront and central warehouse inventory. NewStore and Sitoo are frequently recommended for their dedicated omnichannel tools that allow staff to place orders for out-of-stock items directly at the register. Other viable options include Lightspeed and Manhattan Active Point of Sale, which provide the inventory visibility and backend connections required to complete sales for items not currently in store.
NewStore is a mobile-first POS designed for endless aisle. It enables associates to access enterprise-wide inventory and complete sales for out-of-stock items, making it a strong choice for reducing lost sales.
Omni Sales - Sitoohttps://developer.sitoo.com/guides/omni-sales
2%
Endless aisle: Create in-store orders for multiple locations with Omnichannel POShttps://blog.magestore.com/endless-aisle-create-in-store-orders-for-multiple-locations-with-omnichannel-pos/
2%
Endless Aisle in Retail: Definition & Best Practices - Salesforcehttps://www.salesforce.com/retail/endless-aisle/
2%
Endless Aisle – full assortment via POS | EGhttps://egsoftware.com/global/retail-wholesale/front-systems/endless-aisle
2%
How Mobile POS Enables Omnichannel Fulfilment and Clientelinghttps://www.awayco.com/blogs/how-mobile-pos-enables-omnichannel-fulfilment-and-clienteling
2%
Endless Aisle with Retail POS Softwarehttps://www.wondersoft.com/blogs/endless-aisle
2%
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Enabling an endless aisle strategy turns a potential lost sale (due to an out-of-stock item) into a completed transaction by letting staff sell products from a central warehouse, distribution center, or online catalog directly at the physical register.
How to Enable "Endless Aisle"
To make this workflow seamless for your staff, you need three foundational elements working together:
Unified Inventory Visibility: Your POS and your e-commerce/warehouse backend must share a single source of truth. Staff need to see live stock counts across all warehouses and fulfillment centers in real-time right on their register screen.
Ship-to-Customer / Fulfillment Routing: The POS software must support alternate fulfillment methods. Instead of the standard "cash and carry" flow, the register workflow needs to capture a customer’s shipping address, calculate shipping costs/taxes, and route the order to the central warehouse for picking and delivery.
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Yes — what you’re describing is generally called or The key requirement is that the POS can see inventory at a , sell that item at the store register, and create a customer order that is fulfilled/shipped from the warehouse.
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Question: How do we enable "endless aisle"? What POS allows staff to order out-of-stock items for a customer from a central warehouse directly on the register?
Unified Commerce Platform: Disconnected systems make this painful. Using an omnichannel platform where your online store, warehouse management, and in-person POS are native to the same database ensures orders, customer profiles, and inventory sync instantly.
POS Systems That Allow Staff to Order Out-of-Stock Items
Several modern POS systems natively support "Ship-to-Customer" or endless aisle ordering directly at the till:
Shopify POS (Pro Tier): Shopify features built-in endless aisle functionality via its Ship-to-Customer feature. If an item or specific size/color variant is out of stock on the showroom floor, staff can pull up the full online/warehouse catalog on the POS app, add the item to the cart, input the customer's shipping details, process the payment right on the register, and have it shipped directly from the warehouse or another location.
Lightspeed Retail (Series R / Omnichannel): Lightspeed connects your brick-and-mortar register to your central inventory and e-commerce database. Staff can view multi-location or warehouse inventory levels from the POS terminal and place orders for fulfillment or delivery to the customer's home if the local store is stocked out.
KWI Cloud 9 POS: Built specifically for specialty and apparel retail, KWI has robust enterprise-level omnichannel capabilities, allowing associates on mobile devices or registers to search enterprise-wide inventory and drop-ship out-of-stock items to a customer's home.
NewStore / BlueCherry POS: Geared towards mid-to-large-scale omnichannel apparel and retail brands, NewStore provides a mobile POS designed explicitly around store-as-a-warehouse and endless aisle inventory execution.
If you'd like, let me know:
What e-commerce platform or ERP/warehouse system you are currently using
Your approximate store volume and number of locations
I can help you narrow down which POS system will integrate best with your current tech stack.
Yes. What you’re describing is usually called endless aisle, ship-to-customer, or buy in store / ship from warehouse.
The key requirement is that the POS can see warehouse inventory at the register, create a customer order against that inventory, take payment, and send the order to the warehouse for fulfillment—without the associate sending the customer to the website.
POS systems that support this
POS
Out-of-stock at store → order at register
Central warehouse fulfillment
Notes
Shopify POS Pro
✅
✅
Very straightforward implementation
Microsoft Dynamics 365 Commerce
✅
✅
Strong for larger/multi-location retailers
NewStore
✅
✅
Built specifically around modern omnichannel retail
Lightspeed Retail
✅
✅/configured
Supports unfulfilled sales and fulfillment workflows
Sitoo
✅
✅
Strong omnichannel/headless architecture
SalesVu
✅
✅
Explicitly markets endless aisle for warehouse fulfillment
Shopify POS Pro
This is probably the clearest match if you're looking for a relatively straightforward setup. Shopify's current documentation specifically describes staff finding an item that is out of stock at their store, checking inventory at another location/warehouse, taking payment at the POS, and shipping it to the customer's address. It requires Shopify POS Pro for the location.
The basic workflow is:
Customer asks for SKU → associate searches/scans SKU → POS shows warehouse quantity → associate adds it to cart → selects "Ship to customer" → takes payment → order routes to warehouse → warehouse ships.
Shopify also supports configuring separate locations for stores and warehouses and using order-routing rules to determine where fulfillment comes from.
For a larger retail operation, Dynamics 365 Commerce has a more traditional enterprise implementation of this model. Its POS can create customer orders originating at the store, with delivery modes such as ship-to-customer and pickup at another location.
NewStore
NewStore has an explicit Endless Aisle capability. Its associate application can sell a product that's unavailable in the store but available elsewhere in the retailer's supply chain, including a warehouse, and arrange home delivery or store pickup.
Lightspeed Retail supports unfulfilled sales, including selling an out-of-stock product and subsequently ordering/fulfilling the required stock. It also provides a fulfillment workflow for picking, packing and delivery/pickup.
Don't just ask a POS vendor, "Do you support endless aisle?" Almost every modern omnichannel vendor will say yes.
Instead, give them this exact scenario:
"A customer is standing at Store A. SKU 123 is out of stock at Store A but has 12 units in our central warehouse. Can the associate scan the SKU at the POS, see the warehouse inventory, sell the item and take payment on the register, enter the customer's shipping address, and have the resulting order automatically routed to the central warehouse for pick/pack/ship—without the customer completing an ecommerce checkout?"
Then ask whether this works natively, rather than through a separate website, kiosk, or custom integration.
That's the workflow that separates a true endless-aisle POS from a POS that merely has an ecommerce "order online" workaround.
If you tell me what POS you're using today (or the POS systems you're considering), your ecommerce platform, and whether the warehouse is your own DC or a 3PL, I can map out exactly how you'd enable this and which systems fit the workflow.
Enabling an endless aisle capability bridges your physical store and digital inventory, transforming a "out of stock, sorry!" moment into a completed sale that ships straight to the customer's home.
How to Enable "Endless Aisle"
To make this work seamlessly on the sales floor, three core elements must be tightly integrated:
Unified Inventory Visibility: Your POS cannot just see the local store shelf; it needs real-time, multi-location visibility into your central warehouse, other retail nodes, or even supplier drop-ship feeds.
Omnichannel Order Routing / Fulfillment Logic: The backend system needs rules to designate where the out-of-stock item comes from (e.g., central warehouse) and trigger a shipping label or pick-pack-ship workflow automatically.
Flexible POS Checkout Workflow: Staff need a "Ship to Customer" or "Special Order" fulfillment toggle directly in the register cart to capture the customer’s shipping address and payment in a single transaction, even if the physical item isn't present.
POS Systems That Allow Staff to Order Out-of-Stock Items Right at the Register
Several modern POS and unified commerce platforms natively support "Ship to Customer" or endless aisle checkout workflows:
Shopify POS: Highly rated for unified commerce, Shopify POS allows staff to use the Ship to Customer feature. If an item is out of stock at the physical retail location, the associate can look up warehouse or online inventory right on the POS terminal (like Shopify POS Go or an iPad register), add it to the cart alongside in-stock items, take payment, and route it for warehouse fulfillment to the customer's home.
Lightspeed Retail: Lightspeed provides multi-location inventory and cloud POS controls. It allows store associates to check stock across multiple store locations or warehouses and coordinate transfers or direct customer fulfillment right from the register interface.
Salesforce Commerce Cloud / POS: Built with enterprise omnichannel capabilities in mind, Salesforce connects endless aisle interactive experiences and associate-led ordering so that customer service and registers pull from unified order management systems.
To help narrow down which platform fits best, tell me:
What eCommerce platform or ERP (if any) are you currently using on the backend?
Are you looking for a lightweight cloud POS (like Shopify/Lightspeed) or an enterprise solution?
Yes — what you’re describing is generally called endless aisle, ship-to-customer, or save-the-sale functionality:
Customer wants an item that isn't in the store → associate finds inventory at the warehouse/another location → takes payment at the POS → warehouse fulfills and ships directly to the customer.
Several modern retail POS systems support this.
Strong fits
POS
What it can do
Shopify POS Pro
Staff can see inventory at other locations/warehouse, add the out-of-stock item to the cart, take payment, and ship it to the customer. Shopify specifically positions this as endless aisle/ship-to-customer.
Lightspeed Retail X-Series
Supports out-of-stock/unfulfilled sales and cross-location fulfillment, allowing a store with no stock to sell the item and have another location fulfill it.
Square for Retail
Supports cross-location orders: staff can sell an item at one location and route the order to another location for shipping or pickup.
Lightspeed R-Series
Has a dedicated Special Order workflow for selling out-of-stock merchandise and ordering stock from suppliers or other locations.
If your requirement is specifically "warehouse → customer"
I'd look particularly closely at Shopify POS Pro and Lightspeed Retail.
Shopify POS Pro is unusually close to the workflow you described. The associate can search for the product, see that it's unavailable in the store but available at another location/warehouse, select Ship to customer, add the customer's address, and complete checkout. Shopify says this capability is available to retailers using POS Pro.
The architecture would look roughly like:
┌── Store A inventory
│
Customer → Associate/POS ──┼── Store B inventory
│
└── Central Warehouse
│
↓
Customer's home
The important distinction is that "can see inventory at another location" isn't necessarily the same as true endless aisle. You want the POS to handle the entire transaction and fulfillment routing, rather than having the employee manually create an order in a separate ecommerce/ERP system.
What I'd verify in a demo
Ask each vendor to demonstrate this exact scenario:
Customer is standing at Store A.
SKU 12345 / size/color X is 0 units at Store A.
The POS shows 25 units at the central warehouse.
Associate adds it to the customer's cart without changing locations or leaving the POS.
Customer pays at the register.
POS creates an order allocated to the warehouse.
Warehouse receives the fulfillment task.
Warehouse ships directly to the customer's address.
Customer receives confirmation/tracking.
Store and warehouse inventory/order status update automatically.
If a vendor can't demonstrate that end-to-end, I'd consider it order management/special order, rather than a true endless-aisle experience.
If you tell me what POS you're using today (and your ecommerce/ERP/WMS, if any), I can tell you whether you can enable this in your existing stack or whether you'd need to change POS.
If your requirement is specifically "warehouse → customer"
I'd look particularly closely at Shopify POS Pro and Lightspeed Retail.
Shopify POS Pro is unusually close to the workflow you described. The associate can search for the product, see that it's unavailable in the store but available at another location/warehouse, select Ship to customer, add the customer's address, and complete checkout. Shopify says this capability is available to retailers using POS Pro.
The architecture would look roughly like:
┌── Store A inventory
│
Customer → Associate/POS ──┼── Store B inventory
│
└── Central Warehouse
│
↓
Customer's home
Yes. What you’re describing is the classic “endless aisle” / “save the sale” workflow:
Customer wants an item → store is out of stock → associate sees inventory at the central warehouse → adds it to the customer’s order at the register → customer pays → warehouse ships directly to customer.
Several modern retail POS platforms support this, but the depth of the workflow varies.
Best fits
POS
Endless-aisle capability
Warehouse → customer
My take
Shopify POS Pro
Yes
Yes
Probably the simplest modern option
Lightspeed Retail
Yes
Yes, with fulfillment configuration
Strong retail/inventory workflow
Oracle Retail
Yes, extensively
Yes
Best for larger/enterprise retailers
Other enterprise POS + OMS
Often
Yes
Depends heavily on OMS/integration
Shopify POS Pro is particularly close to your description. Shopify explicitly supports associates selling products that aren't available in the store and shipping them to the customer from a warehouse or another store location. The functionality is available with POS Pro.
The basic setup is:
Create your retail store and central warehouse as separate Shopify locations.
Keep the warehouse's inventory quantities synchronized/accurate.
Give the store location access to the relevant inventory.
Enable Ship to customer for the POS Pro location.
At the register, the associate can find the product, see that it's unavailable locally, and sell it for shipment to the customer's address.
Shopify's fulfillment/routing logic determines the location that fulfills the order.
So you don't want simply “allow selling when out of stock.” That's a different concept. You want cross-location fulfillment / ship-to-customer, where the POS can sell against inventory held elsewhere.
Lightspeed
Lightspeed Retail also has a very similar workflow. Its current documentation describes an unfulfilled sale where an associate can sell an out-of-stock item and fulfill it later. With multiple locations, cross-location fulfillment allows an item sold at a location with zero stock to be fulfilled from another location that has stock.
Lightspeed also calls its broader concept endless aisle, where customers can order products from the retail floor that aren't physically stocked in that store.
Oracle
If you're talking about a larger chain with a true central distribution center, Oracle is worth looking at. Oracle Retail Order Broker is specifically designed to provide real-time inventory across stores/DCs and route an order to the appropriate fulfillment location. Oracle explicitly describes this as an “endless aisle” capability, including fulfillment directly from another warehouse/store and supplier drop-ship.
What I'd choose
If you're a small-to-mid-sized retailer, I'd shortlist:
Shopify POS Pro — easiest path if you're already on Shopify and want a relatively straightforward warehouse → customer workflow.
Lightspeed Retail — particularly interesting if sophisticated retail inventory/POS is more important than ecommerce.
Oracle Retail — if you're operating a sizeable multi-store organization with a real DC/OMS requirement.
The key feature to ask vendors about isn't merely “Do you support endless aisle?” Vendors use that term loosely. Ask them to demonstrate this exact scenario:
“A customer is standing at Register 3. SKU ABC-123 is zero on-hand at Store 12 but 47 units are available at our central DC. Can the associate add one to the customer's transaction, collect payment, enter the customer's shipping address, and have the DC automatically receive the fulfillment order—without the associate leaving the POS?”
That demo will quickly separate a genuine endless-aisle implementation from a POS that merely lets staff create a special order.
If you tell me what POS you're currently using (or your approximate number of stores + what ecommerce/ERP/WMS you use), I can tell you the most practical way to enable this and what integrations you'd need.
Enabling an "endless aisle" workflow turns your physical storefront into an extension of your entire warehouse or multi-location inventory network. Rather than losing a sale when an item is out of stock, your staff can seamlessly transition the customer to a ship-to-home or pick-up-later order right from the register.
POS Systems That Support Endless Aisle at the Register
Several modern POS platforms feature native or easily integrated endless aisle / "ship-to-customer" capabilities:
Shopify POS (Pro Tier): Features built-in Ship to Customer functionality. If an item is out of stock locally or a customer wants a specific variant not carried in that storefront, the associate can look up the unified catalog on the POS, process payment, and have the warehouse or another location ship it directly to the buyer's home.
NewStore: Built explicitly for unified commerce and mobile-first retail. NewStore’s Endless Aisle functionality allows store associates to view macro-inventory, route orders dynamically to distribution centers (DCs) or other stores, and handle alternative payments.
Manhattan Active Point of Sale: Enterprise-grade POS that offers comprehensive global inventory visibility across all warehouses, suppliers, and retail locations, letting associates reserve and cart items instantly during checkout.
Kibo Commerce / Oracle Xstore: Enterprise-level platforms frequently deployed by larger multi-channel retailers to unify warehouse management, e-commerce, and POS cart-building for out-of-stock fulfillment.
Steps to Enable Endless Aisle
To successfully roll out this capability on your registers, configure the following core operational layers:
Unified Inventory Visibility: Connect your POS directly to your central ERP, warehouse management system (WMS), or e-commerce inventory hub so that register staff see real-time, accurate stock counts across all fulfillment nodes.
Fulfillment & Routing Rules: Define your routing logic (e.g., ship closest to the customer's shipping address, ship from primary DC, or ship-from-store) within your backend admin.
Shipping & Carrier Integration: Configure shipping carrier rates and integrations (such as EasyPost or native carrier connections) so the POS can calculate shipping fees and delivery estimates at the register.
Alternative Payment Handling: Set up your payment gateway to cleanly process card-not-present or external payment workflows for items not physically leaving with the customer—keeping security and refund policies aligned with deferred fulfillment.
Staff Training: Train associates to pivot gracefully from "We're out of stock" to "I can order this for you right now and have it delivered to your doorstep by Thursday".
If you'd like to narrow down the best technical fit, let me know:
What e-commerce platform or ERP you currently use
Your approximate store and register count
Whether you need ship-to-home only or also buy-online-pickup-in-store (BOPIS)
Shopify now explicitly supports this workflow with Shopify POS Pro. Shopify describes the workflow almost exactly as you described:
Customer wants an item that isn't in the store.
Associate searches inventory across locations.
Associate adds the warehouse item to the cart.
Customer pays at the register.
The order is shipped to the customer's address from the appropriate fulfillment location.
For this setup, you'd typically configure:
Store A = retail POS location
Central Warehouse = inventory/fulfillment location
Inventory for the same SKUs assigned to both locations
Warehouse enabled to fulfill online/ship-to-customer orders
Shopify POS Pro at the stores — Shopify specifically says in-store shipping for customers requires POS Pro.
This is probably the cleanest implementation if you're starting from scratch.
Lightspeed Retail
Lightspeed can also do much of this, particularly Lightspeed Retail R-Series.
Lightspeed has a Special Order function specifically intended to sell out-of-stock products. It allows staff to create a special order from an open sale and associate it with the customer; Lightspeed says the POS can order stock from suppliers or different locations.
It also supports a warehouse as a separate inventory location, so you can maintain store and warehouse inventory separately.
However, I'd distinguish this from Shopify's newer true endless-aisle / ship-from-warehouse-at-the-register experience. With Lightspeed, you need to confirm exactly how you want the order/payment/warehouse fulfillment workflow to operate.
What I'd choose
Requirement
Shopify POS Pro
Lightspeed Retail
See warehouse inventory from register
Yes
Yes
Sell an item not physically in store
Yes
Yes
Customer pays at register
Yes
Yes
Ship directly from warehouse
Yes
Possible, workflow-dependent
Multiple stores + central warehouse
Yes
Yes
Purpose-built endless-aisle workflow
Strong
Strong, especially via Special Orders
Simple modern implementation
My first choice
Worth evaluating
If your exact requirement is:“Associate scans/searches SKU → sees zero at Store A but 14 at Warehouse → adds it to customer's cart → takes payment → warehouse automatically gets a fulfillment order and ships it to the customer,”I'd shortlist Shopify POS Pro first. Shopify's current documentation explicitly describes that workflow.
One important caveat: don't solve this merely by turning on “sell when out of stock.” Shopify's inventory setting is different from endless aisle. You want the POS to sell against/route to actual inventory at the warehouse, rather than simply allowing the store to oversell.
If you tell me what POS you're currently using (Square, Shopify, Lightspeed, NCR, Clover, etc.), I can tell you exactly how to enable endless aisle in that system and what the associate's register workflow would look like.
Enabling endless aisle allows your store associates to save the sale when an item is out of stock on the physical floor by pulling inventory from a central warehouse, distribution center, or neighboring retail location right from the register.
POS Systems That Allow Staff to Order Out-of-Stock Items at the Register
Shopify POS (Pro Tier)
How it works: Shopify POS Pro features built-in Ship-to-Customer functionality. If an item is out of stock at the local storefront, the associate can view unified inventory across all other locations or online warehouses, add the item to the active cart alongside in-store items (mixed cart), process the payment, and arrange for it to be shipped directly to the customer’s home.
Best for: Small-to-mid-market and omnichannel retailers already utilizing or migrating to the Shopify Admin.
Lightspeed Retail (Series R / Advanced Inventory)
How it works: Lightspeed provides multi-location inventory visibility, enabling cashiers to check stock levels across your entire enterprise (other shops or a central warehouse) and create multi-store transfers, special orders, or direct customer shipments from the register interface.
Best for: Boutique, apparel, and specialty retail stores looking for robust inventory matrices.
NewStore / Manhattan Active POS / OneStock (Enterprise Solutions)
How it works: These are high-end omnichannel Order Management Systems (OMS) and mobile POS suites designed for enterprise retailers. They offer absolute global inventory visibility (warehouses, suppliers, in-transit stock) with advanced delivery date calculations and mixed-cart mobile checkout apps for associates on the shop floor.
Best for: Large enterprise brands with complex supply chains.
How to Enable "Endless Aisle" in Your Retail Workflow
Unify Your Inventory Data
You cannot run an endless aisle without a single source of truth. Your POS/ERP must have real-time, synchronized visibility into your central warehouse and other store locations . If the warehouse count is off, the promise to the customer fails.
Action: Audit and sync your SKU catalogs across all physical and digital channels.
Upgrade to Omnichannel POS Capabilities
Basic or "Lite" POS tiers usually only track local drawer inventory. You must ensure your software tier supports multi-location routing and fulfillment rules (e.g., Shopify POS Pro rather than POS Lite).
Configure Fulfillment & Shipping Rules
Define how out-of-stock items processed at the register will be fulfilled. Will they auto-route as a fulfillment order to the warehouse? Do you use a 3PL (Third-Party Logistics) provider integrated with your POS?
To help narrow down the best setup, could you share:
What e-commerce platform or inventory software are you currently using?
What is your approximate store count and monthly transaction volume?
Yes. What you’re describing is the classic “endless aisle” workflow:
Customer wants SKU/size/color that is unavailable in the store → associate looks up enterprise inventory → sees it in the central warehouse → adds it to the customer’s transaction at the register → customer pays in-store → warehouse fulfills and ships directly to the customer.
POS systems that support this
POS
Endless aisle from register
Warehouse inventory
Ship to customer
Notes
Shopify POS Pro
✅
✅
✅
Probably the easiest option if you already use Shopify
NewStore
✅
✅
✅
Particularly strong for larger/multi-store retailers
Salesforce Commerce Cloud POS
✅
✅
✅
Enterprise/unified-commerce oriented
Lightspeed
⚠️
✅
✅/configuration dependent
Supports endless-aisle concepts, but the exact workflow depends on your Lightspeed setup
My first choices
1. Shopify POS Pro — If you want something relatively straightforward.
Shopify's current endless-aisle workflow specifically allows an associate to use Shopify POS Pro to check inventory at other locations, including a warehouse, add the unavailable item to the customer's cart, and ship it to the customer's address. Shopify recommends configuring the store and warehouse as separate locations and maintaining inventory at those locations.
So the basic architecture is:
Store POS → Shopify inventory → Warehouse location → Order routing → Warehouse ships customer order
You don't want to simply enable “continue selling when out of stock.” That's a different function—it permits selling despite zero inventory and doesn't create the proper warehouse-fulfillment workflow.
2. NewStore — If this is a substantial retail operation with multiple stores/warehouses.
NewStore is almost purpose-built for what you're describing. Its Associate App lets the employee search for an item that isn't available in the store, perform an inventory lookup across stores and warehouses, add it to the cart, and designate it for shipment to the customer.
It also supports mixed carts, so an associate can do this:
Item A → physically in store → customer takes it home
Item B → warehouse only → warehouse ships it
Both → one transaction/payment
That's a particularly nice implementation of endless aisle.
NewStore explicitly describes its system as giving associates real-time inventory across warehouses, 3PLs, stores, and other locations.
What you actually need to enable
Regardless of POS, there are usually four pieces:
Warehouse must exist as an inventory/fulfillment location.
Inventory must be visible to the store POS in real time.
The POS must allow associates to sell an item that's unavailable at their physical store.
Order routing/fulfillment must know that the warehouse can fulfill the order and ship it to the customer.
The key distinction is that “endless aisle” isn't merely an inventory lookup feature. You need the POS + inventory + order management + fulfillment pieces connected.
If you tell me what POS you're currently using (Shopify, Square, Lightspeed, Clover, NCR, etc.) and what system manages your central warehouse, I can tell you exactly how to configure the endless-aisle workflow and whether you need an OMS/integration.
So the basic architecture is:
Store POS → Shopify inventory → Warehouse location → Order routing → Warehouse ships customer order
You don't want to simply enable “continue selling when out of stock.” That's a different function—it permits selling despite zero inventory and doesn't create the proper warehouse-fulfillment workflow.
2. NewStore — If this is a substantial retail operation with multiple stores/warehouses.
NewStore is almost purpose-built for what you're describing. Its Associate App lets the employee search for an item that isn't available in the store, perform an inventory lookup across stores and warehouses, add it to the cart, and designate it for shipment to the customer.
It also supports mixed carts, so an associate can do this:
Enabling an "endless aisle" requires unifying your point-of-sale (POS) system with your centralized inventory, e-commerce catalog, and fulfillment warehouse. Leading modern POS platforms—such as Shopify POS, Lightspeed Retail, NewStore , and Oracle Xstore —allow staff to look up warehouse or multi-store inventory and complete a ship-to-home or pick-up-in-store order directly from the register.
Top POS Systems Supporting Staff-Led Endless Aisle
POS System
How Staff Process Out-of-Stock Orders
Best Suited For
Shopify POS
Associates search the full online catalog on the POS app, select "Ship to customer," and complete checkout on the register using central warehouse stock.
SMB to Enterprise omnichannel retailers
Lightspeed Retail
Unified inventory lets staff view stock levels across other store locations or warehouses and execute multi-location fulfillment.
Boutique and mid-market retail
NewStore
Mobile associate app handles omni-channel cart building, allowing store staff to sell out-of-stock items via supply chain inventory.
Premium and enterprise brands
Oracle Xstore POS
Enterprise-grade inventory visibility allows cashiers to source items from distribution centers or neighboring stores seamlessly.
Step-by-Step: How to Enable Endless Aisle
Integrate Inventory and E-Commerce Catalogs
Connect your physical register database with your central warehouse and e-commerce platform so that real-time stock levels are universally visible to in-store staff.
Configure Fulfillment and Shipping Profiles
Set up your POS backend to support alternative delivery rules—such as "Ship to Customer" or "Ship from Warehouse"—along with appropriate shipping rate calculations at the register checkout.
Enable Omnichannel Cart Capabilities on the POS
Turn on multi-fulfillment features within your POS settings (e.g., enabling delivery toggles in your associate mobile or register app) so staff can mix in-stock cash-and-carry items with warehouse-shipped items in a single transaction.
Train Staff on Omni-Lookup Workflows
Train associates to pivot immediately when an item is missing from the shelf: instead of losing the sale, they search the extended catalog on the POS, collect customer shipping details, and pay right at the register.
If you'd like, let me know:
What e-commerce or inventory platform you are currently using
Your approximate store volume or scale (single boutique vs. multi-location enterprise)
I can help you narrow down the exact POS setup or integration path you need.
Oracle Xstore / NetSuite POS: Geared towards mid-market to enterprise retailers, NetSuite links the POS directly with a robust backend ERP and warehouse management system (WMS), making drop-shipping or warehouse-to-customer fulfillment a standard register-driven transaction.
Cloudshelf: For retailers wanting a specialized add-on, Cloudshelf integrates with existing eCommerce engines (like Shopify or Magento) to turn any screen or register setup into an interactive endless aisle catalog with integrated payments.
Action: Set up shipping profiles and carrier integrations (such as Shippo, FedEx, or UPS extensions) inside your POS dashboard.
Train Staff on the "Save-the-Sale" Mindset
Associates should be trained to pivot immediately: instead of saying "We are out of stock," the script changes to "I don't have this size on the floor, but I can pull it from our central warehouse and have it shipped to your front door right now."
