
Headless CMS explains: Why WordPress has served
The era of monolithic CMS ends. Learn what a Headless CMS is when you should use it and why developers love it.
Read more
We build professional online shops for your business. Custom design, easy to use, secure payments.
Custom Shop Concepts
Individual shop solutions tailored to your products and target audience.
Payment Provider Integration
Secure integration of all common payment methods.
ERP System Connection
Seamless integration with your merchandise management system.
Frequently Asked Questions
Depends on your requirements: Shopware for professional German B2B/B2C, WooCommerce for smaller shops with WordPress integration, Magento for international enterprise. We advise neutrally.
Yes, that's our specialty. We connect shops to SAP, Navision, Odoo, or custom warehouse systems. Real-time stock sync, automatic order transfer, and invoice synchronization.
A professional shop with custom design, payment integration, and basic functions starts at around 15,000 €. Complex B2B shops with configurators or multi-channel correspondingly higher. Clear offer after requirements analysis.
Standard shop: 8-12 weeks. Complex projects with many integrations: 3-6 months. We work in sprints so you see progress regularly and can give feedback early.

Plan e-commerce project? We analyze your requirements and develop a realistic roadmap and quote.
Schedule ConsultationAll common ones: PayPal, credit card (Stripe, Adyen), direct debit, invoice, Klarna, Amazon Pay. We advise which providers make sense for your target audience and are cost-efficient.
Through SSL encryption, secure hosting in Germany, regular updates, and proper cookie consent. We work with specialized lawyers for legal texts and advise on legally compliant shop operation.
Yes, we offer managed hosting and maintenance packages. Regular updates, backups, security monitoring, and support with questions – so you can focus on your business.
Yes, we also take over existing shops. After an audit, we identify optimization potential and develop your shop further – whether feature extensions, performance, or relaunch.

Questions about e-commerce? We advise honestly on shop systems, costs, and strategy – without sales pressure.
Contact UsA successful online shop is far more than a product catalog with a checkout button. It requires carefully orchestrated user journeys that guide visitors from discovery through consideration to purchase with minimal friction. We design e-commerce experiences based on conversion research and real user behavior data, optimizing everything from product page layouts and filtering systems to cart recovery flows and post-purchase communication sequences that drive repeat business.
Our e-commerce implementations go deep into backend integration because the shop frontend is only the tip of the iceberg. We connect your online store directly to ERP systems for real-time inventory synchronization, automate order routing to fulfillment centers, and integrate accounting software so invoices generate automatically. Payment providers like Stripe, PayPal, and Klarna are configured with proper fraud detection and PSD2 compliance, ensuring secure transactions across all European markets.
Performance is a conversion factor that many shop operators underestimate. Studies consistently show that every additional second of load time costs measurable revenue. We build shops on modern frameworks with server-side rendering, optimized image delivery, and efficient caching strategies that achieve sub-second page loads even with thousands of products. Combined with mobile-first responsive design, these technical foundations ensure your shop performs brilliantly on every device your customers use.
Launching a shop is just the beginning of the e-commerce journey. We provide ongoing optimization services including A/B testing of checkout flows, SEO improvements for product pages, and analytics dashboards that reveal which marketing channels actually drive profitable orders. Our maintenance contracts cover security patches, platform updates, and performance monitoring so you can focus on growing your product range and customer base while we keep the technical infrastructure running flawlessly.
Sustainable revenue growth comes from systematic A/B testing at critical touchpoints: product pages, checkout flows, cart dialogs, and calls-to-action. We complement this with push notifications to recover abandoned carts and re-engage existing customers with offers. Combined with a well-executed SEO strategy, these measures ensure not only more visitors find your shop, but a larger share of them actually convert into paying customers.
Black Friday, seasonal spikes, or viral campaigns – your online shop must handle sudden traffic surges without sacrificing performance or availability. We architect shop infrastructure with load balancing, intelligent caching, and global CDN deployment. Through an API gateway, we orchestrate microservices and headless commerce architectures that scale independently – keeping checkout fast even when thousands of customers browse your shop simultaneously.
Selling internationally requires more than translated text. Professional internationalization (i18n) encompasses currency conversion, country-specific tax rates, local payment methods, and legally compliant processes. With Progressive Web Apps, we deliver an app-like shopping experience – offline-capable, fast, and installable – without the detour through an app store. Combined with consistent responsive design, you reach your audiences worldwide on every device.
Frequently Asked Questions
Simple shops from around €15,000 excl. VAT; full e-commerce with ERP and payment integration from €30,000–80,000 excl. VAT. We quote after a short briefing.
We use Shopware, Magento and headless setups depending on requirements. We recommend after analysing your product range, processes and growth plans.
Yes. We integrate common ERPs, payment gateways and shipping services. Custom APIs and legacy systems are also possible.
Yes. We provide hosting, updates, monitoring and support. We can also extend the shop with new features and integrations.

Related Topics
Complementary Services from Other Areas
These services are frequently requested together with Online Shop Development or complement it thematically.
Integration & Interfaces
Data, Analytics & Databases
Your Next Step
Tell us briefly what you have in mind.
We'll analyze your shop or CMS requirements and recommend the right platform – Shopware, Magento, TYPO3 or WordPress.
30 min strategy call – 100% free & non-binding
Online Shop Development is most effective when it is aligned with your business goals, existing systems, and team capabilities. At Groenewold IT Solutions we combine product thinking, clear architecture, and hands-on delivery so that every project delivers measurable value. We address operational, compliance, and performance aspects early so that later releases stay on track.
Our approach to Online Shop Development emphasises transparent backlogs, close collaboration with your stakeholders, and incremental delivery. Whether you need a discovery workshop, an MVP, or a full-scale implementation, we define scope, effort, and success criteria up front. With over 250 completed projects we have the experience to recommend the right level of investment and the right next steps for your situation.
Explore our services overview for the full portfolio, our topic pages for in-depth articles linked to each service, and the IT Glossary for key terms. If you would like to discuss your project, we are happy to clarify scope, priorities, and a realistic timeline in a short consultation.
Decision guidance
Book a no-obligation call about your project – or start with our project check for a structured first assessment.
Recent articles from our blog that match this service.

Headless CMS explains: Why WordPress has served
The era of monolithic CMS ends. Learn what a Headless CMS is when you should use it and why developers love it.
Read more
Odoo vs. SAP: Which ERP solution fits the middle class?
In today's digital landscape, medium-sized companies face the crucial question of which ERP system (Enterprise Resource Planning) best supports their business processes...
Read more
AI in web development: curse or blessing?
Are web developers replaced by AI? Or are we going to be super-codern? A realistic assessment of the role of ChatGPT, Copilot and Co. in 2026.
Read more