Running a retail store in 2026 is a different proposition to what it was five years ago. Customers want fast checkouts, accurate stock availability, and a smooth experience from entry to exit.
Independent retailers feel this pressure hardest: you’re competing against major chains with far bigger technology budgets.
GPK Group has been helping Australian independent retailers close this gap for more than 30 years. Their retail IT solutions cover point of sale, inventory management, store networking, and more, built by specialists who live and breathe independent retail.
Here’s how their approach makes a practical difference across POS, inventory, and in-store experience.
KEY TAKEAWAYS
- Out-of-stock rates in Australian retail can reach up to 15%, with roughly half caused by in-store operations: the right inventory system directly cuts this. (Source: SmartSpotter AU)
- GPK’s Merlin™ is Australia’s most trusted end-to-end retail software, used by 200+ businesses across grocery, hardware and general retail.
- GPK provides a complete retail IT stack: POS, inventory, managed IT, WiFi, CCTV and communications.
- Australian-owned with 30+ years’ experience and MGA platinum partner status.
How Merlin™ POS Transforms the Checkout Experience

The checkout is where customer patience runs out fastest. A slow or unreliable point of sale system adds friction at the one moment where everything needs to run smoothly.
GPK’s Merlin™ POS was built specifically for independent Australian retailers by Australian developers with supermarket and POS backgrounds. It’s not an off-the-shelf product adapted for retail; it’s a solution grown from the inside out.
Merlin™ processes transactions quickly, manages customer accounts, and delivers real-time sales data through a single interface.
What sets it apart is redundancy. As a fully redundant system, Merlin™ keeps your registers running even if a component fails. No lost sales on a busy trade day.
Merlin™ also integrates accounting natively, with connections to leading accounting packages. Every transaction feeds directly into your general ledger, removing manual reconciliation at the end of the day.
Available as an outright purchase or through a monthly SaaS model with no upfront cost, Merlin™ removes the price barrier that’s historically stopped independent retailers from upgrading.
“Merlin™ POS offers speed, flexibility and ease of use, enhancing the efficiency and profitability of our customers. Designed for exceptional user experience, it has comprehensive inbuilt capacities that your business can rely on.” – GPK Group
How GPK Keeps Your Inventory Under Control

Out-of-stock products don’t just mean a lost sale: they push your customers toward competitors. Research from SmartSpotter shows that out-of-stock rates in Australian retail can reach up to 15%, with the in-store operation responsible for roughly half of those stockouts. That’s a problem a better inventory system can solve directly.
Merlin™’s stock and inventory module connects directly to your POS. Every sale automatically updates your stock count, closing the gap between what’s on the shelf and what your system records. That real-time accuracy turns reactive, guess-based ordering into something far more disciplined.
For multi-site operators, the multi-site management feature provides a head office view across all stores, franchises, and warehouses. No separate systems, no weekly reconciliations. You can see what’s moving across your entire network in real time, and act on it.
Supplier rebates are also tracked within Merlin™. Commissions, associated charges, and supplier invoices are recorded automatically, saving significant admin time and ensuring nothing slips at reconciliation.
“From POS and inventory control to advanced analytics and mobility, we give you the tools to compete and win.” – GPK Group
Building a Better In-Store Experience End to End
Retail IT isn’t just software. The physical infrastructure of your store, including Wi-Fi coverage, CCTV placement, communication devices, and hardware layout, directly shapes how customers feel and how your team performs.
GPK takes a whole-of-store approach. Their team plans your store fitout so that every element of the IT environment works together: no Wi-Fi blackspots at the far end of the floor, no RF guns dropping connection mid-stocktake, no checkout devices losing network at peak trade.
Their managed IT support takes the operational burden off your plate entirely. GPK’s local Australian helpdesk manages your IT proactively, covering system upgrades, hardware rollouts, network management, and problem resolution.
You run the store; they run the tech.
For independent retailers who’ve managed their own IT, this shift to fully managed support is often the most immediate and tangible improvement GPK delivers.
We help you plan the layout of your store so that your IT works together fast and effectively. We work with you to create a robust map of your infrastructure that ensures every element of your business remains connected.” – GPK Group
Why Independent Retailers Trust GPK
GPK Group isn’t an IT generalist with a retail product line. Independent retail is their core focus, and it has been for more than three decades.
They’re Australian-owned and operated, an MGA platinum partner, and a preferred Metcash supplier. These credentials reflect GPK’s standing inside the independent retail ecosystem.
They understand the margin pressures, the supplier relationships, and the trading rhythms that independent operators navigate.
With 200+ businesses on their books and long-term partnerships including Morgan’s IGA (15+ years) and Ritchies IGA, the track record is real. And because GPK is independently owned, not backed by overseas funds, their incentives align with yours.
Want to see what independent retail cybersecurity looks like as part of a complete IT strategy?
Read: Retail Data Breach Examples and How Managed Cybersecurity Can Prevent Them.
FAQ: GPK Retail IT Solutions
Merlin™ is GPK Group’s proprietary retail management software covering point of sale, accounting, stock and inventory, multi-site management, and supplier rebates.
It’s built for independent Australian retailers, including supermarkets, grocery stores, hardware stores, and general retail. Available as an outright purchase or monthly SaaS subscription with no upfront cost.
Yes. Merlin™ includes integrated multi-site management for overseeing multiple stores, franchises and warehouses from a single head office view. It’s one of the main reasons GPK is the preferred technology partner for independent retail groups and IGA operators across Australia.
With decades of experience supporting Sydney businesses, we have strong vendor relationships and a deep understanding of the products and solutions available. Whether you are planning a project or upgrading your systems, we can guide you through every step and help you select the best technology for your needs.
GPK’s managed IT support covers proactive system monitoring, an Australian-based helpdesk, hardware sourcing and deployment, network management, and system upgrades. You don’t need to manage your store’s IT: GPK’s team handles the full technology environment for you.
Merlin™ is available as an outright purchase or through a monthly SaaS subscription. The SaaS model includes ongoing maintenance and support, so you pay a single monthly fee with no hidden extras. Contact GPK Group to discuss which model suits your business.
Ready to Upgrade Your Store's IT?
GPK Group offers a free, no-obligation strategy call to review your current setup and identify where your IT can perform better. Whether you need a new POS, tighter inventory control, or a fully managed IT environment, their team will build a solution around your store’s specific needs.
Book a strategy call with GPK: Contact GPK Group