The verdict in three sentences
For a Miami brand doing USD 5 to 15 million in online revenue, staying on Magento 2 costs, in 2026, EUR 2,000 to 8,000 (about USD 2,200 to 8,600) a month in support and maintenance, before upgrades and hosting. A migration to a headless front end (Next.js) on a modern commerce engine costs EUR 10,670 to 22,870 and up (about USD 11,500 to 24,700) with Kolonell, over 4 to 6 months, and the speed gain lifts conversion by 5 to 15 % as an order of magnitude. The project only pays off if SEO, catalogue and customer account migration are treated as workstreams in their own right, with a line by line redirect plan.
Why Magento 2 weighs on margin
Magento 2 is still powerful, but its total cost has grown: quarterly security patches, extensions to update, scarce skills, servers sized for a PHP monolith. On mobile, product pages often exceed 3 seconds of LCP, while most traffic for a fashion or beauty brand comes from phones.
| Annual item | Maintained Magento 2 | Headless (Next.js front + commerce engine) |
|---|---|---|
| Support and patches | EUR 24,000 to 96,000 | Kolonell maintenance EUR 600 to 2,160 + quoted enhancements |
| Hosting and CDN | EUR 6,000 to 24,000 | EUR 2,400 to 9,600 |
| Extension licences | EUR 2,000 to 8,000 | EUR 0 to 3,000 |
| Commerce engine licence | 0 (Open Source) to EUR 40,000+ (Adobe Commerce) | 0 (open source) to EUR 30,000 (SaaS) |
| Major version upgrade | EUR 15,000 to 60,000 every 2 to 3 years | Not applicable, continuous updates |
| Typical mobile LCP | 2.8 to 4.5 s | 1.2 to 2.0 s |
Kolonell maintenance follows the 2026 grid: 35,000, 75,000 or 120,000 FCFA per month, i.e. EUR 50, 110 or 180 per month. Functional enhancements (new journeys, new integrations) are quoted separately.
The four migration workstreams
A failed migration shows up in Search Console within 15 days. These four workstreams hold most of the risk and budget.
| Workstream | Content | Budget share | Risk if neglected |
|---|---|---|---|
| SEO migration | URL inventory, line by line 301 redirects, tags, structured data | 20 to 25 % | Loss of 20 to 40 % of organic traffic |
| Catalogue | Products, variants, media, attributes, EN/ES translations | 20 % | Incomplete product pages, broken filters |
| Customer accounts and orders | Accounts, history, loyalty, passwords (reset) | 15 % | Lost repeat customers |
| Headless front end | Category, product, cart, checkout, editorial CMS | 30 to 35 % | Lower conversion than today |
| Integrations | ERP, logistics, payments, reviews, email | 10 to 15 % | Broken data flows |
The Kolonell budget follows the custom application grid: 7,000,000 to 15,000,000 FCFA and up, i.e. EUR 10,670 to 22,870 and up, depending on SKU count, languages and integrations.
Compared cost over 3 years
| 36 month scenario | Maintained Magento 2 | Kolonell headless migration |
|---|---|---|
| Initial project | EUR 0 | EUR 10,670 to 22,870 and up |
| Support or maintenance | EUR 72,000 to 288,000 | EUR 1,800 to 6,480 + enhancements |
| Hosting | EUR 18,000 to 72,000 | EUR 7,200 to 28,800 |
| Version upgrade | EUR 15,000 to 60,000 | EUR 0 |
| Indicative total excl. licences | EUR 105,000 to 420,000 | EUR 19,670 to 58,150 + enhancements |
These amounts are 2026 orders of magnitude. A post-migration enhancement budget (new features) should be planned in both scenarios.
Mini case study
Need a professional website?
Kolonell builds websites that attract clients, optimized for the Sénégalese market. Free quote in 2 minutes.
Melissa, e-commerce director of a beauty brand in Miami, does USD 8.6 million (about EUR 8 million) online with a 1.8 % conversion rate. Her Magento support costs EUR 5,000 a month, i.e. EUR 60,000 a year. After a EUR 20,000 migration, with maintenance at EUR 180 a month and an enhancement budget of EUR 1,500 a month, her run cost drops to about EUR 20,160 a year. If conversion rises only 5 % (from 1.8 to 1.89 %), extra revenue reaches about EUR 400,000, i.e. EUR 160,000 of gross margin at 40 %. As an order of magnitude, the project pays back in under 3 months, provided organic traffic is preserved.
FAQ
How much does a Magento to headless migration cost?
With Kolonell, plan EUR 10,670 to 22,870 and up depending on catalogue, languages and integrations. Timeline is 4 to 6 months, SEO acceptance included.
Will I lose my search rankings?
Not if every indexed URL gets a 301 redirect to its equivalent and tags and structured data are carried over. Daily Search Console monitoring for 8 weeks lets you fix gaps quickly.
Will customers have to recreate their accounts?
No, accounts and order history are migrated. Magento's hashed passwords are often not transferable: a reset email is then sent, which usually affects 30 to 50 % of active customers on their first visit.
Is headless really faster?
A well built Next.js front end brings mobile LCP to around 1.2 to 2.0 seconds, versus 2.8 to 4.5 seconds on many Magento 2 stores. Each second saved lifts conversion by several relative percentage points.
Should I migrate all at once or step by step?
A phased migration (front end first, then engine) reduces risk for catalogues above 10,000 SKUs. For 1,000 to 5,000 SKUs, a single cutover over 4 to 6 months is usually the cheapest.
Let's scope your project. Share your SKU count, languages, integrations and current support cost: we will price the headless migration, indicative budget and a 4 to 6 month plan. Detailed quote within 48 h via our quote form. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.