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Custom Retail Software: Omnichannel POS, Inventory Management and Unified Commerce

Customers do not think in channels, and your software should not either. We build unified retail platforms that connect store, webshop and warehouse in real time, typically reducing manual reconciliation by double-digit hours per week and improving inventory accuracy across locations.

Retail is evolving at breakneck speed. Consumers expect a seamless experience regardless of whether they browse on a phone, visit a store or order through a marketplace. They compare prices in real time, expect click-and-collect to work flawlessly and assume loyalty points earned in-store are immediately available online. Retailers who cannot deliver that consistency lose sales and customer trust. Off-the-shelf SaaS solutions work well for single-store or simple webshop setups, but they struggle when assortment logic becomes complex. Think of size and colour variants with separate EAN codes, franchise structures with segregated stock, consignment articles, or a loyalty programme that must apply identical rules and tiers across online and offline channels. In those scenarios, a web of spreadsheets, manual reconciliations and pricing exceptions quickly emerges. Custom retail software connects all channels from a single source of truth. An event-driven inventory hub updates webshop and store locations within seconds after every sale, return or transfer. POS, e-commerce, marketplace feeds and ERP draw from the same data, ensuring customers always see the correct price, availability and promotion. Reporting per branch, product group and channel gives buying and merchandising teams the insights to make assortment decisions based on data rather than gut feeling. For retailers with multi-brand concepts, franchise networks or international expansion plans, bespoke software provides the flexibility and control that no standard platform can match.

Pain points

  • Fragmented systems for webshop, store and warehouse, each maintaining separate inventory records. Reconciling these sources costs hours every week and leads to pricing errors, double sells and disappointed customers who order products that are not actually available.
  • Inaccurate inventory management with structural discrepancies between system stock and physical counts. Overstock on slow movers ties up working capital, while fast sellers go out of stock unnecessarily because reorder points are not dynamically adjusted.
  • Lack of unified customer data, making personalisation and targeted marketing nearly impossible. Customer profiles exist separately in the webshop, POS system and newsletter tool without any connection between them.
  • Slow and outdated POS systems that degrade the in-store experience. Long checkout queues, limited payment options and no integration with loyalty or gift cards frustrate both staff and customers.
  • Click-and-collect, ship-from-store and in-store returns of online purchases that do not automatically write back to inventory. Store staff must make manual corrections, introducing additional errors.
  • Promotions and tiered pricing configured differently per channel, so customers see one price online and another in-store. This leads to complaints, retroactive price corrections and loss of brand trust.
  • Limited reporting capabilities that prevent buying and merchandising teams from seeing detailed sell-through per location, product group or campaign. Decisions about replenishment, markdowns and seasonal transitions are made on intuition.
  • Franchise or multi-brand structures where each location has its own stock flow, but headquarters needs centralised reporting, promotion management and consolidated customer data.

Our solutions

  • Event-driven inventory hub that processes every sale, return, transfer and correction to all connected channels within seconds. Webshop, stores and warehouse always work from the same truth, including reserved, available and in-transit positions per location.
  • Custom POS or tablet checkout with offline mode for uninterrupted transactions during network issues, configurable discount rules, loyalty integration, ERP connection and support for contactless payments, gift cards and split payments.
  • Order orchestration for click-and-collect, ship-from-store and central warehouse, including automated pick tasks, shipping labels and customer notifications. The system automatically selects the optimal fulfilment location based on stock, distance and cost.
  • CDP-light integration or connection with existing marketing tools based on consent and profiles. Online and offline transactions are linked to a single customer ID, enabling segmentation, personalisation and campaign measurement across all channels.
  • Reporting per branch, product group, supplier and channel for buying, visual merchandising and category management. Dashboards display sell-through, inventory days, margin contribution and campaign effectiveness in real time.
  • Marketplace integration with platforms such as Amazon, eBay and regional marketplaces, including automatic product feed generation, inventory synchronisation, order import and returns handling from the same system as your own webshop.
  • Loyalty and gift card platform operating across POS, webshop and app with a unified transaction model, fraud prevention and export to your financial administration. Customers earn and redeem points regardless of channel.

Benefits

  • Higher revenue through a consistent customer experience across all channels. Customers always find the correct price, availability and promotion regardless of whether they shop online or in-store.
  • Lower inventory costs through more accurate demand forecasting, dynamic reorder points and automatic transfer suggestions between locations. Less overstock and fewer stockouts through better inventory visibility.
  • Deeper customer insight leading to higher conversion and retention. Unified customer profiles enable targeted campaigns, personalised offers and increased customer lifetime value.
  • Faster checkout processes that minimise wait times and boost satisfaction. Modern POS with contactless payments, loyalty integration and robust offline mode prevents revenue loss during busy periods.
  • Less manual reconciliation work because all channels draw from the same data source. Staff spend their time on customer interaction and visual merchandising instead of comparing spreadsheets.
  • Better decision-making for buying and merchandising through real-time reports on sell-through, margin and campaign effectiveness per branch and product group.

Technologies

ReactNode.jsPostgreSQLStripe

Our approach

We start retail projects by auditing your current technology stack across online and offline channels to identify the biggest discrepancies between system stock and actual stock. Which manual steps consume the most time? We then connect the source of truth first (usually ERP or PIM), followed by POS and e-commerce. Each two-week sprint delivers measurable improvement: an additional automated inventory mutation, one fewer manual return flow, or a new reporting view for buying. Marketplace and delivery-partner integrations are phased in once core data is reliable. Store staff are involved through pilot locations that go live first, ensuring real-world feedback flows directly into the next sprint. After go-live we set up monitoring and alerting so discrepancies become visible before they impact customers. Quarterly business reviews ensure the platform continues to evolve with your commercial strategy.

How to measure success?

Success metrics for retail software include omnichannel conversion rate improvement, inventory accuracy (gap between system stock and physical count), average in-store checkout time reduction, customer retention and lifetime value growth, and reduction in weekly manual reconciliation hours. We also measure sell-through per campaign, average click-and-collect order processing time and the percentage of lost sales due to stockouts. All indicators are visualised in integrated dashboards combining online and offline data, giving both store staff and headquarters real-time insight into performance trends.

Further reading

Software for e-commerceSoftware for the hospitality industryWhat is cloud computing?IndustriesCustom Logistics Software: WMS, TMS, Supply Chain and Fulfilment SolutionsCustom Healthcare Software: EHR Integration, Patient Portals and Secure E-Health Platforms

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Frequently asked questions

We build integrations with all major e-commerce platforms including Shopify, WooCommerce, Magento and Lightspeed. Via APIs we synchronise products, inventory, pricing and orders in real time. The connection is bidirectional: online orders flow to your fulfilment system and inventory changes in the warehouse or store are immediately visible in the webshop.
Yes, our solutions support multi-store management with centralised inventory, consolidated reporting and per-location configuration for opening hours, promotions and assortment. Headquarters maintains oversight of all branches from a single dashboard, while store managers see and manage only their own location.
A custom POS system is fully tailored to your workflows, integrates seamlessly with your ERP, loyalty programme and inventory management, and can include capabilities that standard packages do not offer, such as franchise-specific pricing logic, consignment tracking or integration with weighing and scanning systems. It also operates reliably offline during network issues.
Through a central inventory engine that works with clear statuses (reserved, available, in transit, defective) and automatic corrections based on cycle count results. Optionally we connect handheld scanners or scheduled cycle counts so discrepancies surface before the webshop sells something that is not physically available.
Yes, we design a unified balance and transaction model that operates behind both the POS checkout and the webshop. Customers earn and redeem points regardless of channel. The system includes fraud prevention (velocity checks, maximum balance limits) and export to your financial administration for proper accounting treatment.
An initial phase with inventory hub and POS integration typically goes live within 10 to 14 weeks. The full omnichannel platform with marketplace integrations, loyalty and advanced reporting takes an average of 5 to 8 months. We start with a pilot store so you see results quickly and can plan the broader rollout based on proven functionality.
Yes, we build multi-tenant structures where each branch or franchisee has its own inventory and financial records, while headquarters reports centrally, manages promotions and consolidates customer data. Rights and data separation are configurable per level, ensuring the privacy and commercial interests of every party are protected.

Custom software built for your industry

We understand what works in your sector and build software that actually speeds up your operations.

Tell us about your project

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Go beyond standard webshop templates with a custom e-commerce platform that unifies your online and offline retail experience.

Custom Logistics Software: WMS, TMS, Supply Chain and Fulfilment Solutions

Purpose-built logistics software that connects warehouse, transport and fulfilment into one data stream. Clients typically see measurable improvements in order accuracy, shipping speed and inventory visibility within the first quarter after go-live.

Custom Healthcare Software: EHR Integration, Patient Portals and Secure E-Health Platforms

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MG Software
MG Software
MG Software.

MG Software builds custom software, websites and AI solutions that help businesses grow.

© 2026 MG Software B.V. All rights reserved.

NavigationServicesPortfolioAbout UsContactBlogCalculatorCareersTech stackFAQ
ServicesCustom developmentSoftware integrationsSoftware redevelopmentApp developmentIntegrationsSEO & discoverability
Knowledge BaseKnowledge BaseComparisonsExamplesAlternativesTemplatesToolsSolutionsAPI integrations
LocationsHaarlemAmsterdamThe HagueEindhovenBredaAmersfoortAll locations
IndustriesLegalHealthcareE-commerceLogisticsFinanceAll industries