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Every order, on the shelf

Sell everywhere with one view of stock

We build online stores, D2C apps and retail systems that connect your website, marketplaces and physical stores to one inventory and order flow.

Commerce that works across every channel

Retail now happens in many places at once: your website, a mobile app, Amazon and Flipkart listings, Instagram, WhatsApp and physical stores. Each channel is simple alone. The trouble starts when stock, prices, orders and returns live in separate systems, leading to overselling, slow refunds, frustrated support teams and customer data no one can use.

We work with D2C brands, multi-store retailers, wholesalers going online and founders launching marketplaces. Some need a fast Shopify or WooCommerce store with a few custom features. Others outgrow templates and need a headless storefront, a custom marketplace or a retail system that ties billing counters, warehouses and online orders together.

Nexzem recommends the simplest stack that fits your catalogue size, order volume and team. We focus on page speed, search, checkout conversion and clean integrations with payment, shipping, ERP and marketplace APIs. After launch, analytics show where shoppers drop off, and we keep improving the store in small, measurable releases.

One stock count, every channel

Sell from the website, the app or the store counter, or restock: every channel shows the same number.

What retail & eCommerce teams get with Nexzem

Scroll along the line: each outcome lights up as the signal reaches it.

  1. No more overselling

    Real-time stock sync across channels protects ratings and avoids cancelled orders.

  2. Faster checkout

    Fewer steps, saved addresses and local payment options such as UPI reduce cart abandonment.

  3. One customer view

    Orders from every channel link to one profile, which makes marketing and support more relevant.

  4. Platform freedom

    You own the code and data, so moving hosts or adding channels later is straightforward.

Retail & eCommerce software we build

Online stores, D2C apps and omnichannel retail software that keep inventory, orders and customers in sync.

Custom eCommerce stores

Fast storefronts on Shopify, WooCommerce, Magento or a headless Next.js setup, with product filters, search and a short checkout.

Every build includes

  • No more overselling
  • Faster checkout
  • One customer view
  • Platform freedom

Rules online retailers in India must follow

The Consumer Protection (E-Commerce) Rules require online sellers and marketplaces to show seller details, total prices including all charges, return, refund and exchange policies, and the country of origin for goods, and to appoint a grievance officer who responds within set timelines. Packaged goods listings must carry Legal Metrology declarations such as manufacturer, net quantity and maximum retail price, just as the physical pack does. Missing fields can lead to listings being blocked.

The Central Consumer Protection Authority's guidelines on dark patterns prohibit tricks such as false urgency, hidden charges added at checkout, forced subscriptions and confusing cancellation flows. Tax rules matter too: marketplaces collect tax at source under GST and large businesses must issue e-invoices. Customer data falls under the DPDP Act. This is general information, not legal advice, so review your obligations with counsel.

  • Show the full price, including delivery and convenience fees, before checkout.
  • Display return and refund terms on every product page.
  • Capture Legal Metrology fields in the product catalog structure.
  • Make cancellation as easy as subscription signup.
  • Record marketing consent separately from order data.

Integration challenges in retail

A modern retailer connects many systems: the storefront, an ERP or Tally for accounting, store POS, Amazon and Flipkart seller APIs, a shipping aggregator, payment gateways, a warehouse system and marketing tools. Each has its own product identifiers, order statuses and update timing. Most overselling, wrong refunds and stuck orders come from gaps between these systems rather than from any single one failing.

The fix is a clear source of truth for each data type, usually the ERP or an order management system for stock and orders, with event-driven sync to every channel and reconciliation jobs that catch mismatches. Mapping order states carefully, such as partial shipments, exchanges and returns to origin, prevents the edge cases that generate most support tickets.

  • Pick one source of truth for stock, prices and orders.
  • Sync stock changes to channels within minutes, not hours.
  • Reconcile orders and payments daily across every channel.
  • Map every marketplace order status to your own states.
  • Alert on sync failures before customers notice.
  • Test returns, exchanges and partial shipments end to end before launch.

Where AI fits in retail

Retailers see quick returns from AI in search and discovery: understanding misspelled and vernacular queries, recommending related products and ranking results by likelihood to buy. Generative models can draft product titles and descriptions for large catalogs, which staff then review, and support assistants can answer order status and return questions from live data.

Behind the scenes, demand forecasting helps buyers plan stock by store and season, and analysis of returns reveals sizing or quality problems with specific products. Keep humans in charge of pricing and promotions, test AI-written content for accuracy, and measure each feature against conversion, return rates and support volume rather than novelty.

How we build for retail & eCommerce

Clear stages with a review at the end of each, so you always know what happens next and what it costs.

  1. 01

    Store and channel audit

    We review your catalogue, channels, order volume and current tools to pick the right platform.

  2. 02

    UX and conversion design

    Product, cart and checkout pages are designed around how your customers browse and buy.

  3. 03

    Build and integrate

    We develop the store and connect payments, shipping, ERP and marketplaces in sprints.

  4. 04

    Migration and load testing

    Products, customers and orders are migrated and the store is load tested before launch.

  5. 05

    Launch and optimise

    We go live, monitor conversion and speed, and ship improvements based on real data.

Retail & eCommerce use cases

  1. Festive sale readiness

    Before a major sale, the store is load tested at several times normal traffic, product pages are cached at the edge, checkout is protected with queueing and inventory reservations prevent overselling when thousands of shoppers buy the same item.

  2. Click and collect for a fashion chain

    Shoppers reserve items online from a nearby store's live stock, receive a pickup code by SMS and collect within hours, while store staff get a picking list on a tablet and unclaimed items return to shelves automatically.

  3. Returns automation

    Customers start returns in the app, choose refund or exchange, and book a pickup. Rules approve low-risk returns instantly, flag repeat abusers for review and push restocked items back into sellable inventory once quality checks pass.

  4. B2B reordering portal for retailers

    A brand's retail partners reorder from a portal with their negotiated prices, credit limits and order history, receive scheme benefits automatically and track deliveries, replacing phone and WhatsApp orders that sales staff typed in manually.

  5. Catalog content at scale

    A retailer onboarding thousands of products uses AI to draft titles, attributes and descriptions from supplier sheets and images, with merchandisers approving each batch and catalog quality checks catching missing sizes or wrong categories.

Technology behind our retail & eCommerce software

Proven, well-supported tools chosen for your scale, budget and team, never for novelty.

  • Next.js
  • React
  • Shopify
  • WooCommerce
  • Magento
  • Node.js
  • PostgreSQL
  • Elasticsearch
  • Razorpay
  • Stripe

Retail & eCommerce software FAQs

Something else on your mind? Ask a consultant and get a reply within one business day.

How much does an eCommerce website or app cost?

Cost depends on platform choice, catalogue size, custom features such as subscriptions or a marketplace, the number of integrations and whether you need a mobile app. A Shopify store with light customisation costs much less than a custom marketplace. A fixed quote follows a free consultation with your team.

Should we use Shopify or a custom build?

Shopify suits most brands starting out or with standard catalogues. A custom or headless build makes sense when you need unusual pricing, B2B flows, deep ERP integration or marketplace features. We recommend based on your roadmap, not our preference.

Can you sync inventory with Amazon and Flipkart?

Yes. We integrate with marketplace seller APIs to sync listings, prices, stock and orders, so your team manages every channel from one dashboard.

How long does it take to launch an online store?

A customised Shopify or WooCommerce store usually takes 4-8 weeks. Custom marketplaces or omnichannel systems take 3-6 months and are released in phases.

Do you help after the store goes live?

Yes. We offer maintenance, speed tuning, new feature development and readiness checks before big sale events.

How do you prepare an online store for big sale days?

We load test well above expected peaks, cache catalog pages at the CDN, optimize database queries for checkout, add queueing for payment spikes and agree a war room plan with monitoring and rollback. We also freeze risky changes in the days before the sale.

Can you help reduce cash on delivery returns?

Yes. Common measures include address and phone verification at checkout, risk scoring for orders based on history and pin code, nudges toward prepaid payment with small incentives, confirmation calls or WhatsApp messages for risky orders and clear delivery tracking that reduces refusals.

We work with clients across the USA, UK, Australia, UAE, New Zealand and India.

Where we work

Software that fits how your sector works.

Share your workflows and compliance needs. We reply within one business day with a suggested approach and team.