Magento Migration: How to Succeed with Your Replatforming
Plan your Magento migration with confidence. Discover the key steps, costs, timelines, and the right platform.
Article summary
- Magento migration becomes essential when your version is nearing end of support, security risks are increasing, or maintenance costs and technical debt are holding back your business growth.
- A successful replatforming project starts with a full audit of your current setup, clear business goals, the right target platform, a defined budget, and a dedicated project team.
- Platform selection should be driven by your business needs (B2B, marketplace, omnichannel), your target architecture, your integrations (ERP, PIM, CRM), and the total cost of ownership (TCO) over several years — not just by the technology itself.
- SEO is a critical factor in any migration: a comprehensive 301 redirect plan, structured data migration, maintaining Core Web Vitals, and post-launch monitoring are essential to protect your traffic and commercial performance.
Why migrate away from Magento today?
The question is no longer whether to migrate, but when. Since 2023, Adobe has applied a three-year lifecycle policy starting from the general availability of each Magento Open Source and Adobe Commerce release. Several versions that are still widely used are already out of support. Running on an unpatched foundation exposes you to known security vulnerabilities, PCI-DSS non-compliance, and a growing shortage of qualified PHP developers. For organizations that have been on Magento for 5 to 8 years, the decision needs to be made now: upgrade, or make a full move as part of a true replatforming project.
End of support and security risks
The dates published on Adobe Experience League are clear: Magento 2.4.4 lost support in April 2025, 2.4.5 in August 2025, and 2.4.6 in March 2026, with security support extended until August 11, 2026. PHP 8.1 reached end of life in 2025, and PHP 8.2 will go out of support at the end of 2026, which effectively closes the door on any lasting PCI compliance. Continuing without a migration plan means accepting permanent risk: data theft, loss of payment certification, and an unfavorable audit.
Hidden costs and developer shortages
The second driver behind replatforming is financial. On the projects we support, the maintenance cost of a legacy Magento stack has doubled over three years: higher hourly rates, abandoned third-party modules, and fragile ERP integrations. Add to that functional debt — the gap between what the platform can do and what the business needs, such as marketplace capabilities, B2B order management, and native invoicing. When that gap becomes too wide to close, migration is no longer optional.
6 steps to kick off a Magento migration
Launching a migration without a clear framework is the number one cause of budget overruns on projects like this. Here’s the sequence to follow before you call a single agency or sign a single proposal. Each step produces a concrete deliverable your steering committee can use.
- Audit the current setup. Map everything: Magento version, installed modules, customizations, product-customer-order volumes, ERP-PIM-CRM integrations, server logs. Deliverable: a 10- to 20-page document.
- Define the business goals. Why migrate? International growth, B2B launch, performance, scalability. Without measurable goals, the project will drift.
- Choose the target model. Upgrade path (Magento 2.4.8 LTS), move to Adobe Commerce Cloud, or a full platform change to a headless or composable solution.
- Set the budget and timeline. Based on the audit, build a high-level roadmap and a 36-month TCO budget (build + run + support).
- Select the integration partner. Run a limited RFP with 3 or 4 certified partners, comparing real use cases and verifiable B2B references.
- Assemble the internal team. Executive sponsor, IT project lead, business owner, SEO lead, data lead. Without a dedicated team, no vendor will deliver on time.
Choosing the right target platform: 4 criteria
Not every Magento site should migrate to the same destination. The right choice depends on the business model, catalog complexity, active sales channels, and the team’s technical maturity. Four criteria shape the decision and help rule out 70% of unsuitable options during the scoping phase. For a broader view of the market, read our article on which B2B eCommerce platform to choose, with a breakdown of each solution’s strengths and limitations.
For B2B projects with complex catalogs, negotiated pricing, multi-buyer accounts, and deep ERP integration, legacy monolithic platforms like Magento quickly show their limits. A composable solution like a B2B website software built for these use cases lets you serve one catalog across multiple channels: e-commerce site, distributor portal, marketplace, and sales app.
4 SEO risks to anticipate
A poorly planned migration can lead to organic traffic losses of 40 to 70% in the first few weeks, with recovery sometimes taking more than six months. On a site where organic search drives 30 to 50% of revenue, the impact is immediate. Four key areas should guide SEO oversight throughout the project.
- Incomplete 301 redirect plan. Any strategic URL that isn’t redirected loses its SEO value. The plan must cover 100% of indexed pages: catalogs, product pages, articles, category pages.
- Loss of structured data. Product, Offer, AggregateRating, BreadcrumbList schema: all of it must be reproduced with the same coverage on the new platform.
- Performance regression. A new platform doesn’t guarantee better Core Web Vitals. LCP and INP must be measured in pre-production before any go-live.
- Loss of canonical and hreflang tags. Critical for multilingual or multi-country sites. Poor migration creates duplicate content and indexing losses.
Redirect planning and preserving SEO equity
The redirect plan is the most strategic deliverable in the project. It starts with a full crawl of the old site (Screaming Frog or equivalent), cross-checked against active pages in Search Console and Ahrefs over the last 12 months. Any URL that generated traffic, rankings, or external links must be redirected to the closest functionally equivalent page. Validate in pre-production before launch, then monitor daily for 90 days.
Structured data migration and performance
The new platform must reproduce or improve JSON-LD schema coverage: Product, Offer, FAQPage, BreadcrumbList. This foundation powers rich snippets in SERPs and AI Overviews. On performance, require measurable commitments from the integrator: LCP under 2.5 s, INP under 200 ms, TTFB under 800 ms. Recent B2B eCommerce trends confirm that Core Web Vitals influence B2B conversions just as much as B2C.
Typical timeline: 6 months to migrate safely
The average Magento migration takes 3 to 6 months, depending on the complexity of the foundation. For a B2B project with ERP integration, multi-buyer accounts, and marketplace capabilities, the timeline extends to 6 to 9 months. Here’s a typical roadmap for a medium-complexity project on a composable B2B platform.
Each phase can be compressed or extended depending on business constraints such as seasonality, sales periods, or product launches. A cutover in the middle of a commercial campaign should be avoided. The ideal window is at the start of the fiscal year, outside traffic peaks, with a 24/7 support team in place for the first 15 days. For a B2B eCommerce project, plan for a double run — old and new site in parallel — during the first 30 days to handle in-flight orders.
DJUST: a platform built to make your B2B replatforming a success
Migrating away from Magento is often the right moment to rethink your e-commerce architecture for the long term instead of recreating the limits of the current setup. For B2B companies, that means choosing a platform capable of handling complex catalogs, negotiated pricing, approval workflows, multi-buyer accounts, and native integrations with ERP, CRM, or PIM systems. With its SaaS, headless, modular, and open-source architecture, DJUST supports replatforming projects with a scalable solution designed to speed up deployment while keeping total cost of ownership under control. Companies can modernize their platform without compromising performance, scalability, or long-term innovation potential.
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