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Guide: Switching your ecommerce platform without downtime

Guide: Switching your ecommerce platform without downtime

Many online stores reach internal limits during ongoing operations. Typical triggers include missing features, performance issues, rising maintenance costs, or an outdated system foundation that is no longer reliably developed. As a merchant, the question then becomes how to switch your ecommerce platform – including your entire data set and ongoing revenue – without disrupting your business.

Switching ecommerce platform: Key takeaways

  • Switching your ecommerce platform makes sense when your current system reaches its limits, becomes too expensive to operate, or lacks essential functionality.

  • The best time to switch is outside your peak periods, ideally with a six‑to‑eight‑week buffer.

  • Start by choosing the right system type (SaaS, PaaS, or self‑hosted).

  • Clearly define your requirements for features, integrations, internationalization, and marketing processes.

  • Fully test the new shop in a staging environment: products, checkout, payment methods, shipping, customer data, and integrations.

  • Downtime can be minimized by fully preparing the new shop and switching during a short cutover window.

  • Shopware supports migrations with a dedicated Migration Assistant, documented migration paths, and a strong partner network.

Pre-checklist: Should I switch my ecommerce platform?

  • My shop is slow or occasionally unstable, especially under high traffic.

  • Updates regularly cause issues or are avoided due to risk concerns.

  • Important features (for example, B2B or internationalization) are missing or difficult to implement.

  • New requirements can only be implemented with significant effort.

  • Maintenance and agency costs are increasing without added value.

  • Planned growth or digitalization goals cannot be realized in the current system.

Additional indicators that switching is the right decision include outdated and sluggish software, unreliable integrations with ERP, PIM, or CRM systems, and the overall desire for a future-proof ecommerce platform.

Guide: Switching your ecommerce platform

Your platform migration succeeds when you first select the new system, define your requirements, document your current state, determine the migration strategy, and thoroughly test the new shop before going live.

Step 1: Choose the right system type

By selecting the system type, you set the course for how adaptable, maintainable, and feature-rich your solution can be in the future.

System type

Description

Advantages

Disadvantages

SaaS (Software-as-a-Service)

e.g. Shopware SaaS

Fully managed cloud operation. Updates, security, and infrastructure are handled by the provider.

Very low maintenance effort; fast implementation; stable and scalable; no server administration costs

Limited deep customization; dependent on provider’s feature scope

PaaS / Cloud-native

e.g. Shopware PaaS

Cloud hosting with greater control over architecture and custom code.

Broad flexibility; API-first; headless options; ideal for complex integrations and highly individual requirements

Requires technical expertise or agency support; higher development/DevOps costs

Self-hosted / Open source

e.g. Shopware Community Edition

Operated on your own infrastructure or with a hosting partner.

Maximum customization; full control over code and server; independent of SaaS limitations; popular for complex B2B setups

Higher operational and maintenance effort; updates and security are your responsibility

Step 2: Assess your current state (as-is analysis)

You assess your current setup by gaining a clear overview of your key shop areas: products, customers, orders, content, existing integrations, and any custom functionalities.

Area

What to document

Why it matters

Products

Quantity, variants, images, attributes

Foundation for data migration

Customer data

Accounts, groups, opt-ins

Controls pricing, permissions, GDPR compliance

Orders

Time period and volume of order history

Essential for customer service and reporting

Content

Pages, landing pages, media

Important for SEO, marketing, and navigation

Integrations

ERP, PIM, CRM, payment, shipping

Ensures business processes continue to function

Custom features

Pricing logic, exports, automations

Identifies individual customization needs

Step 3: Define your requirements (target state)

To ensure that switching to a new shop system is planned effectively, you need to clearly define your business and technical requirements. The more specifically you can articulate them, the easier it will be to select the right platform later on.

  • Business models: The new system must support your real sales scenarios, such as B2C with variant logic, B2B with customer-specific pricing and approval workflows, or D2C with recurring orders.

  • Planned growth: If you plan to expand into additional countries, languages, or currencies, you need multilingual capabilities, country-specific tax and shipping rules, and scalable pricing and catalog logic.

  • Marketing and content requirements: If your team frequently publishes campaigns, landing pages, or product stories, the system should include a CMS usable without developers, support multiple media formats (images, videos, 3D), allow layout adjustments without code changes, and provide reusable modules and templates.

  • Stable integrations with ERP, PIM, CRM, POS, or marketplaces.

  • Reliable performance and scalability during peak traffic.

Step 4: Define your migration strategy

You define your migration strategy by deciding how the technical transition will be executed, which data will be transferred, and how to organize the move in a way that ensures your ongoing operations remain unaffected.

Option 1: One-step migration

The shop is completely rebuilt and then populated with all relevant data in a single import.

Suitable when:

  • The existing shop is small or outdated.

  • Few custom functions must be migrated.

  • A short transition phase is acceptable.

Advantage: Fast completion

Disadvantage: Less testing time

Option 2: Migration with staging and multiple data imports

The new shop runs as a staging version. Data is imported multiple times for testing and adjustments.

Suitable when:

  • Many integrations exist.

  • Custom functionality must be considered.

  • SEO, tracking, or B2B processes require careful transfer.

Advantage: Lower risk

Disadvantage: Longer project timeline

Option 3: Parallel operation with delta migration

An initial full import is completed. Shortly before go-live, a second import (“delta”) updates new orders, customers, and changes.

Suitable when:

  • The shop must remain accessible throughout migration.

  • Large data volumes exist.

  • Daily orders or B2B quotes cannot be lost.

Advantage: Very secure transition

Disadvantage: Higher technical complexity

Step 5: Testing before go-live

You test the new shop before it goes live by reviewing all essential functions in a secure staging environment: products, checkout, payments, shipping, customer data, integrations, and content. The goal is to ensure that the new shop runs smoothly under realistic conditions before it is launched online.

Requirements for testing

  • Independent staging environment

  • Realistic data set including products, customers, and orders

  • Access to all integrated systems (ERP, PIM, CRM, payment, shipping)

What to test

  • Products: Correct display? Variants, pricing, availability, tier pricing working?

  • Checkout: Seamless process? All payment methods functional? Shipping methods, delivery times, and costs accurate?

  • Customer data: Can existing customers log in? Registration and password reset working?

  • Integrations: Are orders correctly transferred to ERP? Is inventory synced? Do newsletter, tracking, and feed exports function?

  • Content: Are homepage, categories, and landing pages complete? Media and internal links working?

Final approval by the team:

  • Departments (customer service, marketing, logistics) review their areas.

  • Issues and missing content are collected and prioritized.

  • All open items are resolved before go-live.

Step 6: Protect SEO rankings and secure data

You prevent ranking and data losses by correctly redirecting your existing URLs, fully transferring all essential content, and properly submitting the new shop to search engines from a technical standpoint. In addition, you ensure that product, customer, and order data are complete and accurate after the migration.

  • Set up 301 redirects for every old URL.

  • Transfer titles, descriptions, media, structured data, and internal links.

  • Update Google Search Console: submit new XML sitemap, check for crawl errors.

  • Test performance and Core Web Vitals via Google PageSpeed Insights.

Data security:

  • Before migration: Back up all products, customers, orders, and media.

  • After migration: Conduct spot checks to verify data accuracy.

Switching ecommerce platforms made easy with Shopware

Shopware supports your migration with the Migration Assistant, documented migration paths (for example, from Magento), and a network of partner agencies.

Your entire shop – products, categories, customers, orders, and additional data – can be securely transferred to Shopware 6, including repeatable imports and delta migrations.

Case Study: Migration from Magento to Shopware – Keimling Naturkost

Keimling Naturkost, a leading provider of vegan and raw food products, operated on Magento 1 and migrated to Shopware 6.

Keimling Naturkost case study image

Case Study: Migration from OXID to Shopware – M-Medientechnik

M-Medientechnik migrated from OXID to Shopware 6. Since the relaunch, M-Medientechnik’s conversion rate has been four times higher than with the previous shop. In addition, the number of orders has increased by more than 50 percent. The cart abandonment rate was reduced from 16 percent to 3 percent.

m-medientechnik case study image


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When is the right time to switch ecommerce platforms?

The right time to switch your shop system is when your current solution reaches its technical limits, when the effort required for maintenance and bug fixing continues to increase, or when goals such as internationalization, B2B functionality, or new sales channels can no longer be properly supported.

In addition, the switch should be planned outside of your highest-revenue periods to avoid disrupting ongoing operations. Suitable timing includes:

  • Slower business phases, for example outside of seasonal peaks or major campaigns.

  • Sufficient internal capacity for testing, data validation, and final approvals.

  • Planned relaunch or expansion initiatives that can be combined with the new system.

Immediate action is required when:

  • Manufacturer support has ended.

  • Security or stability issues occur.

  • Integrations or updates are repeatedly delayed or failing.

  • Business goals cannot be implemented.


Switching ecommerce platform – frequently asked questions

Does my current shop need to go offline during migration?

No. The new shop is built in parallel. The actual switchover typically takes only a few minutes if data and systems are prepared.

Which data can be migrated?

Typically, products, variants, categories, customer accounts, orders, media, and many CMS contents can be migrated. The scope depends on the source system. In most migrations to Shopware, nearly the entire shop can be transferred.

Will I lose my Google ranking when switching shop systems?

Not if all relevant URLs are redirected with 301 redirects and content is fully transferred.

How much does switching ecommerce platforms cost?

Costs vary widely. Small shops often range between €5,000–€20,000. Mid-sized shops typically range between €20,000–€80,000. Complex setups (B2B, ERP integrations) can exceed €100,000.

Do I need an agency for migration?

Not necessarily. Smaller shops may handle migration independently. Larger projects or those with many integrations benefit from Shopware partner support to avoid delays and errors.

When should I not migrate?

Avoid switching during peak periods such as Black Friday, holiday seasons, or major assortment or process changes. Choose stable and quiet business periods instead.