Choosing the wrong Magento migration agency is one of the most expensive mistakes an eCommerce business can make. This guide covers exactly what a credible agency delivers, the ROI you should expect, the five hiring criteria that matter most, the nightmares to avoid, and how to evaluate any agency's process before you sign.
What does a Magento migration agency do?
A Magento migration agency manages the full process of moving your store from Magento 1 to Magento 2 (or from another platform to Magento). A credible agency handles:
- Pre-migration audit -- current store analysis, extension compatibility, data inventory, SEO baseline
- Data migration -- products, customers, orders, CMS content transferred accurately with integrity checks
- Theme and frontend -- M1 themes rebuilt or redesigned for M2's architecture
- Extension and custom code -- compatibility audit, replacement sourcing, custom development where needed
- SEO preservation -- full URL mapping, 301 redirects, metadata transfer, sitemap resubmission
- Testing and go-live -- staging QA, performance testing, planned switchover with minimal downtime
- Post-migration support -- monitoring, bug resolution, ongoing maintenance
What a Magento Migration Agency Should Deliver
A Magento migration is more than moving files and products from one version to another. It involves careful planning, data integrity verification, extension compatibility resolution, SEO preservation, and often a full frontend rebuild. An agency that treats it as a simple data transfer is one that will cause you problems. Here is what a credible agency delivers across each area.
Data integrity and migration accuracy
Data migration is foundational. Product catalogues, customer profiles, order history, and CMS content all need to transfer accurately and in a format Magento 2 can fully support. A capable agency does not just migrate data -- it audits and cleans it during the process, removing redundancies, correcting inconsistencies, and ensuring the M2 database starts clean rather than inheriting M1's accumulated data quality issues.
After migration, data validation is mandatory: product counts, customer records, and order histories should be checked against M1 baselines to confirm nothing was lost or corrupted before go-live is approved.
Extension audit and replacement
Magento 1 extensions are not compatible with Magento 2. Every extension in your current store needs to be assessed individually. A reliable agency will review all current extensions, identify which have M2 equivalents, suggest better-performing alternatives where the original is no longer maintained, and develop custom solutions for unique business logic that has no ready alternative. This audit should happen at the start of the project, not after development has begun.
SEO and URL structure preservation
SEO continuity is one of the most overlooked areas of Magento migrations, and one of the most commercially important. A quality agency will build a complete URL redirect map before development begins, implement 301 redirects for every changed URL, preserve on-page SEO elements (meta titles, descriptions, structured data), configure canonical tags for parameterised URLs in layered navigation, and conduct pre- and post-migration technical SEO audits. Losing search rankings during a migration is almost entirely avoidable -- it is a planning failure, not a technical inevitability.
Custom code and integrations
Custom M1 code cannot be copied to M2. Magento 2 uses a different module architecture, dependency injection system, and file structure. Every custom module, integration, and modification needs to be documented and rewritten for M2. Agencies with limited M2 experience often underestimate this scope, which is a leading cause of timeline overruns and budget blowouts.
Post-migration support
What happens after go-live is as important as the migration itself. A responsible agency provides ongoing performance monitoring, SLA-backed bug resolution, security and patch updates, and a clear support package for future enhancements. The first 4-8 weeks post-migration are when most issues surface -- an agency that disappears after launch is not a migration partner.
Common mistakes agencies make -- and you pay for
- Skipping extension audits: carrying over incompatible or outdated modules leads to performance issues and broken functionality post-launch
- Neglecting SEO mapping: losing URL structure and metadata costs organic traffic that may take months to recover
- Rushing testing phases: migrations launched without thorough staging QA consistently produce broken features in production
- Prioritising cost over capability: lower upfront costs from less experienced agencies reliably produce higher costs downstream through rework, missed functionality, and poor execution
Self-Managed vs Professional Migration: The Numbers
Many businesses attempt to manage Magento migrations internally or with minimal agency involvement, typically to reduce upfront cost. The data on outcomes consistently shows this approach produces higher total costs, longer timelines, and worse results.
| Factor | Self-managed | Professional agency |
|---|---|---|
| Migration errors | Higher rate | Up to 30% fewer errors |
| Downtime during go-live | Higher risk, longer windows | Up to 50% reduction in downtime |
| Extension conflicts | Frequently missed | Up to 40% fewer conflicts |
| Development time | Full internal resource required | 25-30% time saving |
| Speed improvement post-migration | Variable, often unrealised | Consistently 20-30% improvement |
| SEO impact | High risk without expertise | Preserved with proper redirect map |
| Data integrity | Higher error rate | Audited and validated |
| Post-launch stability | Reactive, self-managed | Monitored, SLA-backed |
Why self-managed migrations cost more in the end
The upfront saving of not paying an agency fee is consistently outweighed by the downstream costs of a self-managed migration that goes wrong. Rework after a poor migration -- fixing broken extensions, recovering lost SEO traffic, correcting data errors, rebuilding functionality that was not migrated correctly -- routinely costs more than a well-managed professional migration would have. The risk is not theoretical: data loss, extended downtime, and significant ranking drops are common outcomes of underprepared migrations.
When self-managed can work
Self-managed migration is viable only when: the store has minimal customisation (no custom modules, simple extension set), the internal team has certified Magento 2 developers with migration experience, a staging environment is available and used properly, and SEO is systematically managed by someone with technical knowledge. These conditions apply to a small minority of M1 stores.
The cost of Magento migration starts at around £5,000 for a simple store with professional support. Self-managed migrations with no agency involvement that encounter data loss, SEO damage, or extended downtime regularly cost significantly more to remediate than this -- and the remediation happens under pressure, after the damage is already affecting revenue.
The ROI of Magento Migration Services: Is It Worth the Investment?
The ROI question is the right one to ask. Migration is not cheap, and the cost needs to be justified against measurable business outcomes, not just platform features. The evidence is consistent: professional Magento migration services generate positive ROI for most stores within the first year, with compounding returns as the platform's advantages accumulate.
The six ROI drivers
Improved site performance and conversion rate
Google reports that 53% of mobile users abandon sites taking longer than 3 seconds to load. Migration to Magento 2 with proper performance configuration -- Varnish caching, Redis, CDN -- consistently delivers 20-30% speed improvement. Faster page load times directly improve conversion rates. A 20% conversion rate improvement on a store generating £100,000 in annual revenue adds £20,000 per year.
Scalability and growth capacity
Magento 2 handles larger catalogues, higher traffic volumes, and more complex order management without the performance degradation that M1 stores experience under growth. The ability to scale without replatforming again supports revenue growth that M1 architecturally cannot. Businesses migrating to M2 report 35% revenue growth over three years vs M1 stores that remain constrained by the platform.
SEO and organic traffic improvement
Magento 2's superior SEO architecture -- cleaner URL structure, better canonical tag handling, improved structured data support, faster indexing -- delivers compounding organic traffic improvement over time. Stores that migrate with proper SEO preservation typically see 30% more organic traffic within 12 months as M2's structural advantages take effect. For stores with significant organic revenue, this is often the highest-value ROI driver.
Reduced security risk and compliance costs
Magento 1 receives no security patches. The cost of a breach -- regulatory fines, customer notification, remediation, reputational damage -- is orders of magnitude higher than migration cost. Magento 2 receives regular Adobe security patches, reducing this liability substantially. PCI DSS compliance is also more straightforward on a supported, patched platform.
Reduced development and maintenance costs
Magento 2's modular architecture is more efficient to maintain and extend than M1. Post-migration development costs consistently run 25-30% lower than equivalent M1 work, because M2's architecture is more standardised and better-documented. Extension updates are more frequent, better maintained, and less likely to conflict with each other.
Minimised downtime and operational continuity
Professional migration services reduce migration downtime by up to 50% compared to self-managed approaches. For stores where every hour of downtime has a measurable revenue cost, this is a direct financial benefit. Ongoing post-migration support further reduces unplanned downtime vs the reactive, self-managed maintenance model common on M1 stores.
The ROI calculation in practice
Example: £100,000 annual revenue store
Migration cost: £15,000 (professional agency, mid-complexity store)
Conversion rate improvement (20%): +£20,000 additional annual revenue
Organic traffic improvement (30%): +£8,000 additional annual revenue (estimated)
Reduced development costs (25%): +£3,000 annual saving
Net ROI in year 1: +£16,000 after migration cost recovery. Positive from year 2 onwards.
Real case study: Ciyapa
Ciyapa, a fashion retailer, migrated to Magento 2 with professional agency support. The outcomes were measurable and rapid:
- 30% improvement in site speed -- immediate benefit of M2's superior caching architecture
- 20% increase in conversion rates -- faster load times and improved checkout UX directly measurable
- 40% growth in organic traffic -- M2's SEO architecture advantage compounding over months post-migration
- Investment recovered within months -- positive ROI achieved significantly faster than annual projection
Businesses that optimised their eCommerce platforms saw an average 25% increase in sales within the first six months post-migration. This benchmark aligns with what professional Magento migration services consistently deliver when the migration is properly planned and executed.
Hosting Options for Your Magento Migration
A successful Magento migration starts with the right hosting infrastructure. Choosing an environment that cannot support M2's requirements is a common cause of post-migration performance problems. The hosting decision should be made before migration begins, not after go-live.
Shared hosting
Cost-effective for small stores with consistent, predictable low traffic. Not suitable for M2 at any meaningful scale -- shared resources create performance bottlenecks under load. Only appropriate for development or very low-volume stores.
Cloud hosting
Highly scalable and flexible. Handles traffic fluctuations well and can scale resources dynamically during peak periods. AWS, Google Cloud, and Azure are the leading options. Recommended for most growing eCommerce stores migrating to M2.
VPS (Virtual Private Server)
Dedicated resources within a shared environment. Good balance of cost and performance for mid-sized stores. Requires more technical management than managed cloud hosting but offers predictable performance at a lower cost than dedicated.
Dedicated hosting
Reserved for high-traffic stores where performance and customisation are paramount. Maximum control, maximum cost. Appropriate for enterprise stores with consistent high traffic and complex infrastructure requirements.
Adobe Commerce Cloud
Adobe's managed cloud infrastructure for Adobe Commerce (the enterprise edition of M2). Includes infrastructure management, automated scaling, and Adobe support. Highest cost but lowest operational overhead for enterprise operations.
Managed Magento hosting
Specialist providers like Nexcess or Cloudways offer Magento-optimised managed hosting with pre-configured stacks (Varnish, Redis, Elasticsearch). Good option for stores that want M2-optimised performance without managing infrastructure themselves.
Magento 2 has specific server requirements that M1 does not: Elasticsearch or OpenSearch for catalogue search, Redis for session and cache storage, Varnish for full-page caching, PHP 8.1+ (8.2 recommended), MySQL 8.0+ or MariaDB 10.4+. Confirm your hosting environment meets these before migration begins. A migration to M2 on an underpowered server will not deliver the performance improvements that justify the investment.
5 Criteria for Choosing the Right Magento Migration Agency
Not all Magento agencies specialise in migrations, and Magento development experience alone is insufficient. Migration projects have different challenges from new builds -- particularly around data integrity, SEO continuity, extension compatibility, and zero-downtime go-live execution. Here are the five criteria that matter most when evaluating a migration partner.
Verified experience with Magento 2 migrations specifically
Ask for a portfolio of M2 migration projects -- not just M2 development work generally. The skills required to migrate a complex M1 store to M2 are specific. Ask for case studies with measurable outcomes (speed improvement, SEO impact, downtime achieved). Ask for clients in your industry or with similar complexity. Request at least two references you can speak to directly. How an agency performs under pressure during a migration is more revealing than how they perform during normal development.
Technical capability for your specific requirements
If your store relies on custom code, unique checkout flows, ERP integrations, or legacy payment gateways, your agency must demonstrate the ability to handle those specifically. Ask them to walk you through how they would approach your custom requirements. Agencies with certified Adobe Commerce developers and Adobe Solution Partner status have formal quality standards. Verify {elink('https://solutionpartners.adobe.com/s/directory', 'Adobe Solution Partner status')} in the official directory -- do not rely on claimed status.
A detailed migration roadmap before any contract is signed
A credible agency provides a clear migration roadmap covering: technical discovery phase; data migration and extension compatibility assessment; UI/UX development or redesign scope; QA and performance testing plan; go-live approach and downtime window; post-migration support structure. If an agency cannot provide this before asking you to commit, that is a significant warning sign. Be cautious of delivery promises that seem too short for your store's complexity.
SEO continuity planning as a documented workstream
Ask specifically how they handle SEO during migration. They should be able to describe: their URL mapping process, how they test redirects, how they handle metadata transfer, their approach to canonical tags and layered navigation, and what post-launch SEO monitoring looks like. If SEO is treated as a post-launch task rather than a pre-migration workstream, expect ranking losses. This is too common and entirely avoidable.
Post-migration support with defined SLAs
What is their support model after go-live? A responsible agency provides: ongoing performance monitoring, bug resolution with defined response times, security patch management, and a clear escalation path for urgent issues. The first 4-8 weeks post-launch are the highest-risk period -- you need a partner who is actively watching the site, not waiting for you to report problems.
Choosing a migration agency primarily on lowest price is one of the most expensive decisions an eCommerce business can make. The consequences of a poorly executed migration -- SEO damage, data loss, extended downtime, broken functionality -- routinely cost more to remediate than the price difference between agencies. Get three quotes, understand what each includes, and make the decision based on capability and process confidence, not headline price.
Magento Migration Nightmares and How to Avoid Them
These are the scenarios that regularly cause Magento migrations to fail commercially. Every one of them is preventable with proper planning and the right agency. Understanding them helps you ask the right questions during the agency evaluation process.
Nightmare 1: Inadequate planning and no clear roadmap
Migrations without a detailed plan become chaotic quickly. Scope creep, missed dependencies, unrealistic timelines, and undocumented requirements all compound into delays and budget overruns.
- +Require a comprehensive migration plan before signing -- timelines, resource allocation, risk assessment, and go/no-go criteria for each phase
- +Demand a risk register: what are the known risks, how will they be mitigated, and what is the contingency plan if something goes wrong
- +Insist on a staging environment that mirrors production -- all work happens there before any production changes
Nightmare 2: Data loss during migration
Lost customer records, order history, or product data after migration. This is both a commercial disaster and potentially a GDPR compliance issue if customer data cannot be accounted for.
- +Conduct a full data audit before migration begins -- catalogue exactly what needs to transfer
- +Run test migrations in staging and validate data counts and integrity after each phase
- +Create a full, tested backup of M1 before any migration work begins and retain it throughout the project
- +Never approve go-live until data validation confirms parity between M1 and M2
Nightmare 3: Incompatible extensions breaking functionality post-launch
Extensions that appeared to work in staging fail in production, or conflicts between extensions only appear under real traffic. Post-launch broken functionality costs revenue and reputation.
- +Complete the extension audit at the very start of the project -- not midway through development
- +Install and test extensions individually in staging before combining them
- +Run load testing in staging before go-live to expose conflicts that only appear under real traffic conditions
- +Have a rollback plan ready for go-live: if critical functionality breaks, you need to be able to revert
Nightmare 4: Significant SEO ranking loss post-migration
Organic traffic drops 30-50% after migration and does not recover for months. Rankings lost to missing redirects, lost metadata, or crawl blocks can take 6-12 months to recover.
- +Build the complete URL redirect map before development begins
- +Test every redirect in staging before go-live
- +Export all M1 metadata and verify it is correctly applied in M2 before launch
- +Submit a new XML sitemap to Search Console immediately after go-live
- +Monitor Search Console daily for the first four weeks -- catch issues while they are still recoverable
Nightmare 5: Extended downtime affecting revenue and customer trust
Migrations that go wrong at go-live result in hours or days of downtime. For any store with meaningful daily revenue, this is a significant commercial event.
- +Schedule go-live during the lowest traffic window -- typically late at night midweek
- +Have a tested rollback plan: if the M2 go-live produces critical issues, you need to be able to revert to M1 within minutes
- +Run a final delta migration to capture any M1 activity since the initial migration run
- +Inform customers in advance if a maintenance window is expected
What a Professional Magento Migration Process Looks Like
A well-structured Magento migration follows a clear sequence. Use this as a benchmark when evaluating an agency's proposed approach -- if their process skips or compresses any of these phases, ask why.
Phase 1: Initial assessment and discovery
A thorough analysis of your current M1 store: extension inventory and compatibility, custom code documentation, data audit, SEO baseline crawl, server and hosting assessment, and an honest scope of work for the M2 rebuild. This phase determines the realistic timeline, budget, and risk profile for your specific migration. Agencies that skip discovery and go straight to a fixed quote are providing a number without understanding the scope.
Phase 2: Design and architecture
New M2 architecture design: server configuration and hosting setup, Magento 2 version selection (Open Source vs Adobe Commerce), theme approach (rebuild, redesign, or custom), extension selection for M2 equivalents, integration design for any ERP, CRM, or third-party systems. All of this is decided before development begins.
Phase 3: Staging build and test migration
Build the complete M2 store in a staging environment. Run a preliminary data migration to identify and resolve data transfer issues. Install and test all M2 extensions individually. Rebuild or refactor all custom code. Implement the full URL redirect map and test every redirect. Configure SEO settings, meta tags, structured data, and canonical tags.
Phase 4: QA and performance testing
Comprehensive quality assurance: all page types and user journeys, payment gateways in test mode, third-party integrations, mobile and cross-browser testing, Core Web Vitals and performance benchmarking, load testing under simulated traffic. No migration should go live without a complete QA sign-off.
Phase 5: Final migration and go-live
Final delta data migration to capture M1 activity since the staging migration. DNS switchover during lowest traffic window. Immediate post-launch checks: remove staging crawl block from robots.txt, submit new XML sitemap to Search Console, verify redirects are live, confirm payment gateways are processing real transactions correctly.
Phase 6: Post-migration monitoring and optimisation
Active monitoring for 4-8 weeks post-launch: Search Console daily for crawl errors and redirect issues, rankings vs pre-migration baseline weekly, conversion rate and checkout completion vs M1 baseline, Core Web Vitals, security patch status. Ongoing support for bug resolution, performance optimisation, and future enhancements.
5MS follows this six-phase process on every migration. Our initial assessment is thorough enough to provide a realistic fixed-price quote for most store complexities. We include SEO as a core workstream from discovery through to post-launch monitoring, and our post-migration support covers active monitoring for the critical first weeks after go-live. {ilink('https://5ms.co.uk/contact-us/', 'Speak to our migration team')} about your specific requirements.
Frequently Asked Questions
Common questions about Magento migration agencies and services. {ilink("https://5ms.co.uk/contact-us/","Get in touch")} if yours is not here.
01How much do Magento migration services cost?
The cost of Magento migration services starts at around £5,000 for simple stores with minimal customisation. Mid-market stores (5,000-50,000 SKUs, several custom extensions, third-party integrations) typically cost £15,000-£50,000. Complex enterprise migrations (large catalogues, heavy B2B customisation, multiple integrations) can cost £50,000-£200,000+.
These figures include development, project management, testing, and go-live support. Extension licensing costs, hosting infrastructure changes, and third-party tool subscriptions are typically separate. Always request a fixed-price quote with clearly defined scope -- time-and-materials quotes for migrations create budget uncertainty that is avoidable.
02How long does a Magento migration take?
Simple stores: 8-12 weeks. Mid-market stores: 16-24 weeks. Complex enterprise stores: 6-12 months. Timelines assume dedicated agency resource and prompt client response to information requests. Add 20-30% contingency -- extension compatibility issues and custom code complexity consistently take longer than initial scoping suggests.
Be wary of agencies quoting timelines that seem very short for your store's complexity. Rushed migrations are a primary cause of post-launch problems. A thorough migration takes the time it takes.
03What is the difference between a Magento migration and a Magento upgrade?
A Magento upgrade (e.g., from M2.3 to M2.4) is a version update within the same platform. It involves applying the new version, resolving any breaking changes, and updating extensions. A Magento migration (M1 to M2) is a full platform rebuild -- different architecture, different file structure, different extension ecosystem, and different theme system. M1 to M2 is not an upgrade; it is a migration in the full sense of the word.
04Will my SEO rankings be affected by migrating to Magento 2?
A temporary fluctuation of 2-4 weeks is normal as Google recrawls and processes redirects. Lasting ranking loss is a symptom of poor planning, not an inevitable cost of migration. With a complete URL redirect map, correctly implemented 301 redirects, preserved metadata, and SEO involvement throughout the project, most stores recover to pre-migration baseline within 4-8 weeks and improve over the following months as M2's superior SEO architecture takes effect.
05What questions should I ask a Magento migration agency before hiring?
The most revealing questions: How many M2 migrations have you completed in the last 12 months? Can I speak to two references from similar-complexity migrations? Walk me through how you handle SEO preservation. What does your extension audit process look like? What is your approach if a critical extension has no M2 equivalent? What does post-migration support look like and what SLAs do you offer? What happens if something goes wrong at go-live?
The quality and specificity of the answers tells you more about agency capability than any portfolio or case study.
06Should I use a Magento-certified agency or a general eCommerce agency?
For a Magento migration, a Magento-specialist agency with Adobe Commerce certification is strongly preferable. Magento's architecture is complex enough that generalist eCommerce development knowledge is insufficient for migrations involving custom code, complex integrations, or large catalogues. Adobe Solution Partners have passed formal assessments and maintain minimum standards. Verify claimed partnership status in the {elink('https://solutionpartners.adobe.com/s/directory', 'official Adobe partner directory')}.
07What hosting should I choose for Magento 2?
Cloud hosting (AWS, Google Cloud, Azure) is the right choice for most growing eCommerce stores -- it handles traffic fluctuations, scales dynamically, and can be right-sized as your store grows. VPS is a cost-effective option for mid-sized stores with consistent traffic. Dedicated hosting is appropriate for high-traffic enterprise stores. Adobe Commerce Cloud is the premium managed option for Adobe Commerce Enterprise. Whichever you choose, confirm it meets M2's requirements: PHP 8.1+, MySQL 8.0+, Redis, Elasticsearch/OpenSearch, and Varnish.
08How do I calculate the ROI of Magento migration services?
Start with your current annual revenue and identify which metrics migration is expected to improve. Common ROI drivers: conversion rate improvement from faster page loads (typically 15-25%); organic traffic growth from M2's improved SEO architecture (typically 20-30% over 12 months); reduced development costs post-migration (typically 25-30% lower than equivalent M1 work); reduced security incident risk.
For a store generating £100,000 annually, a 20% conversion improvement adds £20,000 per year. A professional migration costing £15,000 returns its cost within the first year. The ROI case strengthens significantly in years 2 and 3 as platform advantages compound.
09What data should I migrate from Magento 1 to Magento 2?
All commercially critical data should migrate: products (all attributes, images, categories, descriptions), customers (personal data, password hashes, address books, order history), orders (full transaction history, shipping data, payment references), CMS content (pages, blocks, static content), URL rewrites (for redirect mapping), and configuration settings. Data that should be reviewed rather than automatically migrated: outdated customer records, duplicate products, obsolete CMS content, and historical log data. Migration is an opportunity to clean the database, not just copy it.
10What post-migration support should I expect from an agency?
A responsible migration agency provides active monitoring for at least 4-8 weeks post-launch: daily Search Console review for the first month, rankings and organic traffic tracking vs pre-migration baseline, conversion rate monitoring vs M1 baseline, Core Web Vitals and performance benchmarking, bug resolution with defined response times (SLA-backed for critical issues), and security patch management. Beyond this initial period, a monthly or quarterly support retainer covering performance monitoring, extension updates, and ongoing optimisation is the right structure for most stores.
Conclusion: Choosing the Right Migration Partner
The decision matters more than the platform
Magento 2 is a significantly better platform than Magento 1 for performance, security, scalability, and SEO. But the platform advantage is only realised when the migration is executed properly. A poor migration to M2 can produce worse commercial outcomes than staying on M1 in the short term -- lost rankings, broken functionality, data gaps, and customer experience regressions. The platform decision is the easy part. The agency decision is the one that determines whether you actually get the benefit.
What the ROI data says
The commercial case for professional migration services is clear. Stores that migrate with experienced agency support consistently see: 20-30% page speed improvement, 15-25% conversion rate uplift, 25-40% organic traffic growth over 12 months, and reduced development costs from year 2 onwards. The Ciyapa case study in this guide achieved a 30% speed improvement, 20% conversion increase, and 40% organic traffic growth -- with investment recovered within months. These are not exceptional outcomes; they are what good execution delivers.
The five things to verify before you hire
Use the five criteria in this guide as your evaluation framework: verified M2 migration experience with references you can speak to; technical capability for your specific custom requirements; a detailed migration roadmap provided before contract signature; SEO continuity treated as a planned workstream not a post-launch task; and post-migration support with defined SLAs. An agency that can satisfy all five with specificity and evidence is one worth trusting with your migration.
The nightmare you are trying to avoid
Every nightmare in this guide -- data loss, ranking collapse, extended downtime, broken extensions -- has the same root cause: insufficient planning, insufficient testing, or insufficient expertise. None of them are technically unavoidable. They are commercially avoidable by choosing an agency that has done this before, has the process to prove it, and has references willing to confirm it under questioning.
If you are evaluating migration partners and want to discuss your specific store's requirements, {ilink("https://5ms.co.uk/contact-us/","5MS has managed Magento migrations since 2011")} as an Adobe Solution Partner. We provide a detailed migration assessment before any commitment is required, so you have the information you need to make a confident decision.
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