What does building an online shop with nextlevels cost?

It depends heavily on scope. A manageable shop based on Shopware typically starts in the low five-figure range, while complex B2B or headless projects with ERP and PIM interfaces sit above that. On top come running costs for hosting, licenses and maintenance as a separate line item. You get a concrete fixed-price offer after a short discovery in which we clarify requirements, interfaces and data volumes.

How long until my shop goes live?

A clearly scoped shop usually takes from a few weeks to a few months. The range is wide because it depends on the number of interfaces, the complexity of your assortment and the data migration. We work in iterations: you see a working state early and give feedback, rather than only seeing the finished result at the end.

Which shop system do you recommend – Shopware, headless or something else?

Our focus is Shopware, because as an open-source system it is powerful, extensible and well established in the German mid-market. We recommend headless architectures (Shopware as backend, your own frontend) when you need maximum frontend freedom or special performance. We make the decision based on your requirements, not on principle – a simple shop doesn't need a headless setup.

Can you migrate my existing shop?

Yes. We migrate existing shops including product data, customers, order history and URL structure. The URLs and redirects in particular are crucial so your SEO rankings don't collapse during the move. Before migrating we analyze your current shop and plan the move so ongoing operations are disrupted as little as possible.

Do you support B2B, B2C and D2C equally?

Yes. In B2C, conversion, speed and a frictionless checkout matter most. In B2B, requirements such as customer-specific price lists, tiered pricing, order approvals, quotation features and ERP integration come into play. We support D2C brands from brand staging to the logistics interface. We build the shop around your business model, not the other way round.

How do you ensure performance and scalability?

Performance isn't an afterthought for us but part of the architecture. We optimize for good Core Web Vitals, use caching, a CDN and clean database indexes, and test behavior under load. That keeps your shop fast and stable even during load peaks such as sales campaigns or Black Friday.

What about data protection, security and payment processing?

We build shops GDPR-compliant and integrate payments via certified payment providers, so no sensitive card data sits on your server. Updates, secure configuration and a roles-and-permissions concept are standard for us. In e-commerce, security isn't an optional add-on but a prerequisite for trust and conversion.

Who owns the shop – does vendor lock-in arise?

You own everything: code, configuration, data and content. Because we build on open-source technology like Shopware, you're not tied to proprietary systems and could in principle hand operations to another team. We document cleanly – vendor lock-in is not our business model.

E-Commerce: Shop Data Migration

Shop DataMigration

A platform switch stands or falls on the quality of your data transfer. Products, categories, customers, orders, media — everything must arrive on the new platform completely, consistently, and correctly mapped. We plan and execute data migrations with tested mapping scripts, clean up legacy data from the source system, and validate results against the original before the new platform goes live.

Plan Your Data Migration

Challenges you'll recognise

You don't know how to transfer tens of thousands of products, customers, and order history cleanly to a new platform without losing data or introducing inconsistencies.
Previous manual data exports resulted in duplicates, missing images, and incorrect category assignments.
The source system has a custom database structure for which no standard migration tool exists.

Data Analysis & Mapping

Every source system has its own database structure. We analyse your existing system, map all relevant data fields to the target schema, and clarify edge cases — product variants, custom attributes, historical order data. The mapping document is the foundation of the migration and makes every decision transparent and traceable.

Automated Migration Scripts

Manual data exports are error-prone and impractical for large catalogues. We develop automated migration scripts that read data from the source system, transform it, and load it consistently into the target system. Scripts are idempotent — they can be run multiple times without creating duplicates.

Data Cleansing

A platform switch is the best opportunity to clean up legacy data from the source system. We identify outdated products, duplicate customer records, and inconsistent category structures, then cleanse systematically. What arrives on the new system is clean and maintainable.

Validation & Sign-Off

After migration, we validate results in a staging environment against the original: product count, order history, customer data, and media files are systematically checked. Only once the acceptance criteria are met do we clear the migration for go-live.

Good to know

Mapping is the foundation
A complete field mapping between source and target schema is a prerequisite for a clean migration. Fields without a direct equivalent must be consciously decided — otherwise they land in the wrong place or disappear entirely on the new platform.
Idempotent scripts enable delta migration
Migration scripts that can be run multiple times without side effects allow a controlled delta run shortly before go-live. Only the data difference since the last full run is transferred — data loss at the switch point approaches zero.
Data cleansing: now or never
After go-live, cleaning legacy data is harder because the new system has already built downstream records. The migration moment is the last easy window to remove outdated products, duplicates, and inconsistent structures.

Frequently asked questions

What data is migrated?

Typically products with all variants and attributes, categories, customers with addresses, order history, media, and relevant configuration data. Which specific entities are migrated is defined together in the analysis phase, depending on the source system and your requirements.

Can the migration interrupt live operations?

Not if planned correctly. We run multiple migration passes in the staging environment and do a final delta run shortly before go-live that transfers only data created since the last run. The old shop continues running until the switch.

What if the source system has an unusual database structure?

Then we analyse the structure at database level and build the migration path individually. No database is too complex as long as we have read access to the source system and can clarify field semantics together.

Shopware B2B Suite 2026: Features, costs and why the suite is being phased out

Commerce & Shopware05/24/2026

Shopware B2B Suite 2026: Features, costs, EOL with 6.8 - and the honest decision Suite vs. B2B Components for new projects.

Angular vs React vs Vue: Which frontend framework suits your shop?

Commerce & Shopware04/08/2026

Angular, React or Vue for your shop? A practical comparison for e-commerce and headless shopware with a clear recommendation based on team, SEO and setup.

Subscription commerce with Shopware: How recurring revenue supports your shop

Commerce & Shopware05/29/2026

Subscription commerce turns one-off purchases into predictable, recurring revenue. How this works with Shopware and how to start a subscription model.

Why nextlevels

Success you can measure

With us you're always at the cutting edge of technology and benefit directly from our developer expertise. Together we analyze your shop, identify key areas and develop tailor-made solutions. Your goals and expectations are at the center of our work.

Developers, not resellers
Your shop is built by developers who understand the code — nothing gets passed to subcontractors.
Shopware down to the detail
Architecture, API integration and performance from hundreds of project hours.
One team, every discipline
Development, design and marketing from a single source — no friction at the handoffs.
Built for growth
We build for conversion, load time and revenue — not for gut feeling.
Partner, not vendor
We stay on after launch and keep developing your shop continuously.

Ready for your successful online shop?

Whether it's an improvement or a fresh start — a no-obligation conversation never hurt anyone.

Paul Kalisch
Executive Partner

info@nextlevels.de +49 (0) 2161 539 71 60