GreenMart’s eCommerce Overhaul
How OpenGrocer transformed a traditional ACT supermarket retailer into a fully connected, omnichannel grocery operation with 3 unified branches and a digital-first customer experience.
The Challenge
GreenMart is a mid-sized supermarket retailer operating in the ACT with 3 branches and 1 stock warehouse. Before engaging OpenGrocer, the business was heavily dependent on physical stores and disconnected transaction systems. Weak system integration created data silos, and the operation was vulnerable to man-made mistakes, especially regarding data accuracy.
In a market dominated by Woolworths and Coles, GreenMart had no web presence, no app, no delivery or Click and Collect capability, and low stock visibility. Many customers in Australia value these digital conveniences highly in 2026, putting GreenMart at a significant competitive disadvantage.
Physical Store Dependency
All revenue tied to 3 brick-and-mortar locations with no online presence or digital ordering capability.
Disconnected Systems
Each branch operated its own transaction system with no central data integration or shared inventory view.
Manual Data Entry
Stock counts, sales records, and supplier orders were heavily dependent on manual processes, leading to frequent errors.
No Customer Engagement
Limited to basic phone lines and in-store interaction. No app, email campaigns, or loyalty programme.
What OpenGrocer Delivered
OpenGrocer deployed a comprehensive suite of integrated tools to transform GreenMart from a disconnected, physical-only retailer into a modern omnichannel operation.
Shopify E-Commerce
Launched a full-featured online store with product catalogues, Click and Collect, and home delivery options.
Unified POS System
Replaced legacy registers with a cloud-based POS that syncs in real-time across all 3 branches and the warehouse.
Real-Time Inventory
Deployed automated stock tracking with shelf-life monitoring, reorder alerts, and cross-location visibility.
Mobile App Launch
Released a native app for customer loyalty, push notifications, order tracking, and digital receipts.
Supply Chain Automation
Implemented automated replenishment algorithms connecting the central warehouse to all branch locations.
Sustainability Integration
Connected with TooGoodToGo and Ohna to redirect surplus produce and reduce waste across the supply chain.
Results and Impact
All locations unified under a single digital platform
Full e-commerce and POS rollout per branch
Real-time stock data across all locations
Single source of truth for all business data
From Case Study to Platform
The GreenMart overhaul was more than just an IT upgrade for a single retailer. It was the first case study for OpenGrocer, a proof of concept that validated the entire platform approach. The success of this engagement demonstrated that a comprehensive grocery IT solution could be generalised, packaged, and deployed to other independent retailers.
Following this success, the solution was abstracted into a multi-tenant platform. GreenMart’s IT division became OpenGrocer, a B2B service provider enabling small grocery businesses across Australia to compete with the major chains without the risk and cost of building their own systems from scratch.
OpenGrocer now works with small grocery stores who normally cannot compete with Woolworths and Coles, encouraging them to connect digitally to their customer base. Combined with partnerships like TooGoodToGo and Ohna, OpenGrocer also helps small farmers collaborate to prevent waste when their produce does not meet major grocery store standards.
Want the same results for your store?
Download the full strategy report or get in touch with our team to discuss how OpenGrocer can transform your grocery business.