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E-commerce Development

Custom B2B ecommerce to connect your catalogue, orders and business.

More than 200 projects. Developing software since 2012
Our unique system combined with AI delivers faster results.
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Oriol Lanuza
Oriol Lanuza
Developer
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Standard platforms work until you need complex business rules. My work begins where Shopify falls short: integrating your ERP bidirectionally and ensuring your multichannel inventory balances perfectly, even during Black Friday.
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Member of Tech Barcelona

Ecommerce design and development

Connect sales with business operations

When the catalog, prices or order management have their own rules, it is necessary to assess how to resolve them without complicating day-to-day operations. Let's compare the possibilities of a standard platform with custom development.

We develop custom ecommerce, both B2B and online stores with the functionalities and integrations that each company needs. We design the purchase journey and define how it connects with stock, payments and management.

ecommerce product list for nou grup
detail of warehouse boxes Detail of the new group's product page

Nou Grup Ecommerce

Custom and scalable B2B e-commerce development

go to Nou Grup Ecommerce

From the operation to the store

We define e-commerce based on purchasing processes and needs.

  • Understanding the sale

    We review the catalog, customers, commercial conditions and channels to define what the store needs.

  • Design the purchase

    Ecommerce design focused on the shopping experience: navigation, listings and payment. We check usability on mobile and desktop and define what to measure to improve conversion (CRO).

  • Define integrations

    We define the integration with ERP and CRM, the multichannel stock and the data that is synchronized. We agree on the update frequency and how to detect and resolve errors.

  • Build in phases

    We share functional progress to check journeys and adjust decisions within the agreed scope.

  • Connecting payments and logistics

    We choose payment gateways and logistics connections based on the business and available suppliers. We test flows before launch.

  • Prepare for launch

    We test the expected load and critical paths. We agree on monitoring and support after launch.

Experience beyond the storefront

From the catalog to the order

We have been developing e-commerce since 2012. We know the importance of product data, commercial conditions and the processes that continue after the purchase.

We review navigation and payment on mobile and desktop. Integrations are defined according to the available systems, including how errors are detected and resolved.

We prepare the technical SEO foundations and test critical paths. After launch, usage data helps decide which improvements to prioritize.

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Frequently Asked Questions

Answers to the most common questions about custom e-commerce design and development .

Everything You Need to Know Before You Start

1

When do I need a custom ecommerce platform instead of Shopify or PrestaShop?

When commercial rules, the catalogue or integrations do not fit a standard platform well. Before building a custom solution, we compare what configuration can resolve and what needs dedicated development. Expected volume is assessed through tests, not just the technology chosen.

2

How much does it cost to develop a custom online store?

Custom ecommerce development starts at €25,000 for projects with basic functionalities and a personalized ecommerce design . Stores with ERP/CRM integration , advanced conversion rate optimization (CRO) features, and multichannel inventory management typically range from €40,000 to €100,000. We'll provide you with a fixed price quote after analyzing your needs.

3

Which payment gateways do you recommend?

We choose options based on buyers, markets and suppliers. We assess costs, conditions and integration before confirming which ones are incorporated.

4

How do you manage multichannel stock?

We review where inventory is maintained and which connections each channel offers. We define the data, update frequency and error handling before confirming scope. Immediate synchronisation depends on the capabilities of the systems involved.

5

Will the store be able to handle traffic spikes during campaigns?

We agree expected load and test critical journeys before a campaign. Based on the results, we plan the capacity and monitoring needed. Performance depends on the application, integrations and infrastructure working together.

6

Does it include mobile optimization?

Yes. We design and test the shopping experience on mobile and desktop. We review navigation, product pages, forms and checkout before launch.

7

Do you offer post-launch support and optimization?

Yes. Custom e-commerce requires continuous improvement: conversion rate optimization (CRO) through A/B testing, security updates, new features, metrics analysis, and adjustments based on user behavior. We offer maintenance contracts with different levels of support.

8

Can you migrate my current store without losing data or SEO?

Before confirming a migration, we review which data can be exported, its quality and the existing URLs. We define what to transfer, test the import and plan redirects and incident recovery. Search positions cannot be guaranteed to remain unchanged.