Key takeaways
The 30 second version
- B2B migrations are more complex than consumer projects because pricing agreements, customer accounts and ERP integrations all have to move together.
- Start with a full audit of functionality, data, integrations and SEO, and clean your data before it moves.
- Decide early where pricing, stock and payment terms are managed, and test them against real customer accounts.
- Protect search rankings with a full URL map, 301 redirects and close monitoring after launch.
For manufacturers, wholesalers and distributors operating on ageing ecommerce platforms, migrating to Shopify B2B offers an opportunity to modernise their online operations, reduce technical complexity and improve the customer purchasing experience. However, B2B ecommerce migration requires careful planning because of complex pricing agreements, ERP integrations, and purchasing workflows that exist in the B2B sector.
In this guide, we explore the practical steps involved in migrating to Shopify, the mistakes businesses should avoid and how to plan a successful transition.
When to migrate
When should you migrate your B2B ecommerce website?
For many B2B businesses, the decision to migrate ecommerce platforms is driven by the limitations of existing technology, particularly when maintaining ageing systems becomes increasingly expensive or restricts further development.
Manufacturers, wholesalers, and distributors may have invested heavily in custom functionality and integrations over the years, but these developments can eventually make platforms harder to maintain and improve.
Businesses running older versions of Magento, bespoke ecommerce systems, or other legacy platforms may find that rising maintenance costs, limited flexibility, and unreliable integrations prevent them from achieving their ecommerce objectives.
Other common reasons to consider migration include poor website performance, inefficient purchasing journeys, manual order processing, and difficulty supporting new markets or sales channels.
For businesses facing these challenges, Shopify may offer a more sustainable foundation for growth, but migration isn’t automatically the best option.
In some circumstances, upgrading the existing platform may deliver better value, while organisations with particularly complex requirements may find that Magento or Adobe Commerce remains more appropriate. Our Shopify B2B vs Adobe Commerce comparison explores this decision in more detail.
The decision should therefore begin with an assessment of the existing platform, the problems the business wants to solve and its long-term requirements.
For more information about Shopify’s B2B capabilities, read our guide to Shopify development for manufacturers, wholesalers and distributors.
Why B2B is different
What makes B2B ecommerce migration more complex?
B2B ecommerce migrations are generally more complex than consumer ecommerce projects because business customers often have negotiated pricing agreements, multiple purchasing contacts, credit arrangements and specialist ordering requirements.
For example, a wholesaler may supply hundreds of customers under different commercial agreements, while a distributor may operate multiple warehouses with location-based product availability.
These processes often connect to ERP and other operational systems, so migration can affect sales, finance, warehousing, and customer service.
Transferring customer records without preserving associated pricing agreements could display incorrect prices, while failing to reconnect inventory systems could let customers buy unavailable products. Both issues are incredibly damaging to conversion rates and customer loyalty.
A successful migration must therefore consider the relationships between customer data, commercial processes and business systems rather than treating each element independently.
Audit
Step 1: Audit your existing ecommerce platform
The first stage of a successful B2B Shopify migration is a comprehensive audit of the existing ecommerce environment to identify the functionality, data, and integrations that must be preserved.
For businesses running established platforms, this process can also reveal outdated functionality or inefficient processes to improve during migration.
The audit should cover several important areas:
Website functionality
Review purchasing features such as quick ordering, quotation requests, repeat purchasing and customer account management.
Customer information
Assess company accounts, purchasing contacts, delivery addresses, permissions and commercial agreements.
Product data
Review SKUs, categories, technical specifications, images and documentation.
Integrations
Identify connections with ERP, PIM, CRM, warehouse management and payment systems.
Custom development
Establish which bespoke features can be replaced, simplified or need rebuilding.
SEO performance
Identify important URLs, organic search rankings, landing pages and content.
Operational processes
Document how orders, payments, stock updates and customer enquiries are managed.
Also involve relevant stakeholders, because sales, finance, and operations teams often understand requirements that aren’t immediately apparent from reviewing the website.
For example, finance teams can explain credit arrangements, while warehouse teams can identify dependencies affecting inventory and fulfilment.
The outcome should be a clear understanding of what needs to be migrated, improved or removed, providing a foundation for the remaining stages.
Strategy
Step 2: Plan your Shopify migration strategy
Once the existing platform has been audited, businesses should develop a migration strategy that establishes how the transition to Shopify will be managed while minimising disruption.
One of the first decisions is defining the project scope, including whether the business intends to reproduce essential functionality or use the migration as an opportunity to improve the customer experience.
Both approaches can succeed, but teams must agree on requirements early to prevent unexpected development work from increasing costs and delaying delivery.
Businesses should also establish which Shopify plan and store structure are appropriate, particularly because certain advanced B2B capabilities are restricted to Shopify Plus.
The migration strategy should identify which information will be transferred, which business systems will remain in place and which integrations require rebuilding or reconfiguration.
It should also establish how customer accounts will operate, how orders will be processed during the transition and when testing, training and launch activities will take place.
Clearly assign responsibilities between the ecommerce agency, internal teams, and technology providers, ensuring everyone understands their role.
For more complex organisations, a phased migration may be appropriate, although essential purchasing and operational processes must remain functional throughout.
Data
Step 3: Prepare and clean your ecommerce data
Data preparation is one of the most important stages of B2B ecommerce migration because manufacturers, wholesalers and distributors often manage thousands of product records, customer accounts and historical transactions.
Over time, legacy platforms can accumulate duplicate customer records, discontinued products, incomplete specifications and inconsistent data structures.
Transferring this information directly into Shopify risks recreating existing problems, so businesses should complete a data cleansing exercise before migration.
Product information should be reviewed to remove outdated records, standardise SKUs and ensure technical documentation is associated with the correct products.
Customer data should also be checked for duplicate records, outdated contacts and incorrect account relationships, while pricing information should be validated against existing commercial agreements.
Once the data has been cleaned, it must be mapped to Shopify’s structures, which may differ from those used by the existing platform.
For example, technical product attributes stored in custom database fields may need to be transferred into Shopify metafields or metaobjects, while customer records may need to be organised into company and company location structures.
Rather than importing the entire database immediately, businesses should test representative samples and validate the results, allowing them to identify errors before transferring larger volumes of information.
Products and customers
Step 4: Migrate products and customer accounts
Transferring product and customer information can be a substantial task for B2B merchants because of the complexity of their catalogues and commercial relationships.
Migrating product information
Manufacturers and distributors often manage products with detailed specifications, compatibility information, images, and technical documentation, all of which must remain accurate and accessible after migration.
Pay particular attention to SKUs and manufacturer part numbers because B2B customers often use these identifiers to find products and place repeat orders.
Changes to product identifiers can also disrupt integrations, so businesses should validate product references and ensure existing catalogue relationships are maintained where necessary.
Migrating customer accounts
B2B customer migration requires careful planning because a single organisation may have multiple purchasing contacts, delivery locations and account permissions.
Shopify uses company and company location structures to manage B2B customers, meaning existing records must be mapped correctly to preserve these relationships.
For example, a distributor supplying a national retailer may need to migrate a central purchasing account alongside multiple branches, each with different addresses, contacts and payment arrangements.
Customer authentication should also be considered because Shopify B2B uses a newer customer accounts system, which may change the login experience.
Businesses should therefore communicate account access changes clearly and provide customers with appropriate guidance before launch.
Migrating historical orders
Historical order information is valuable for repeat purchasing, account reconciliation and customer service, although transferring every transaction into Shopify may not always be necessary or practical.
Some businesses may migrate selected records, while others may retain historical information within their ERP or make it available through a customer portal.
The appropriate approach depends on the volume of information and how customers need to access previous transactions.
Pricing and terms
Step 5: Transfer customer-specific pricing and payment terms
Customer-specific pricing requires particular attention during B2B migration because manufacturers and wholesalers often operate negotiated agreements based on purchasing volumes, product categories and commercial relationships.
Before transferring pricing information, businesses must determine where they currently manage prices and how they will calculate them after migration.
Some merchants maintain prices in their ecommerce platform, while others use ERP systems to manage customer contracts and pricing rules.
Shopify supports B2B catalogues for controlling product availability and pricing, with additional company-specific catalogue capabilities available through Shopify Plus. For a practical example of customised B2B pricing and account functionality, see our Gecko Jewellery Shopify Plus project.
However, businesses with more sophisticated requirements may need to retain pricing calculations within their ERP and integrate the results with Shopify.
Also consider payment terms, as many trade customers purchase on credit rather than paying immediately at checkout.
Although Shopify supports B2B payment terms, additional integration may be required to manage credit limits, account restrictions and other financial controls.
Before launch, test pricing and payment arrangements against representative customer accounts, including those with different contractual agreements and purchasing permissions.
This helps prevent errors that could affect customer relationships and commercial performance.
Integrations
Step 6: Reconnect ERP and business systems
For many B2B merchants, reconnecting ERP and other operational systems is the most technically demanding part of migrating to Shopify.
Manufacturers, wholesalers and distributors often rely on ERP platforms to manage inventory, pricing, customer accounts, finance and order fulfilment, making reliable Shopify B2B integrations essential.
During migration, businesses must decide which systems maintain different types of information and how data will move between them.
For example, the ERP may remain responsible for stock availability and contract pricing, while Shopify manages the customer-facing purchasing experience.
Some integrations operate in near real time, while others use scheduled updates, depending on operational requirements.
Integration testing should also consider how systems respond when information becomes unavailable or inconsistent.
Businesses should define what happens if the ERP connection fails during checkout, how to prevent duplicate orders, and how to identify and correct unsuccessful synchronisations.
These scenarios are particularly important for organisations processing significant order volumes because integration failures can disrupt fulfilment and customer service.
A reliable integration should therefore include appropriate monitoring, error handling and recovery processes.
Planning a move to Shopify?
We help manufacturers, wholesalers and distributors plan and deliver B2B Shopify migrations.
SEO
Step 7: Protect your SEO rankings during migration
SEO is a critical consideration when migrating an established B2B ecommerce website because manufacturers, wholesalers and distributors may have spent years building organic visibility for their products and technical content.
Changing platforms can affect rankings, particularly when URLs, website architecture or page content are modified.
Audit existing search performance
Before migrating, businesses should identify which product pages, categories, and informational resources drive organic traffic, enquiries, and sales.
Google Search Console and analytics data can help set performance benchmarks and identify pages that need particular attention.
Map existing URLs to Shopify
Shopify uses specific URL structures, meaning some existing URLs may need to change during migration.
Create a comprehensive URL mapping document and implement permanent 301 redirects where needed, ensuring visitors and search engines reach the most relevant replacement pages.
Preserve valuable content
Product descriptions, technical specifications and industry resources may contribute significantly to organic search performance, particularly when customers search using manufacturer part numbers or technical terminology.
These assets should be reviewed carefully before content is removed or substantially changed.
Complete technical SEO checks
Before launch, businesses should review canonical tags, metadata, internal links, structured data, XML sitemaps and indexation settings. After migration, monitor Google Search Console for crawl errors, indexing problems, and changes in organic visibility to identify potential issues promptly.
Testing and launch
Step 8: Test and launch your Shopify ecommerce store
Once development, data migration and integrations are complete, the new Shopify website should undergo comprehensive testing before launch.
This should cover the complete purchasing journey, including customer login, product discovery, pricing, checkout, order processing and fulfilment.
For example, wholesalers should confirm customers can access their negotiated prices, while distributors should verify that orders are transferred correctly to the ERP.
User acceptance testing
User acceptance testing allows internal stakeholders and selected customers to complete realistic purchasing tasks, helping identify problems that may not be apparent during technical development.
Involve sales, customer service, and operational teams where appropriate because they understand how the website supports everyday business activities.
Planning the launch
The launch should follow a detailed plan covering the final data transfer, DNS changes, redirects, payment configuration, integrations and customer communications.
Businesses must also decide how to manage orders created shortly before migration, particularly when transactions remain unfulfilled.
For organisations with significant trading volumes, launching during a quieter period may help reduce operational disruption.
Preparing a contingency plan
Even carefully planned migrations can hit unexpected issues, so businesses should set up procedures to respond to critical problems.
This should include identifying launch-blocking issues, assigning escalation responsibilities and assessing whether rollback is technically possible.
Returning to the previous platform can become difficult once new orders and customer changes have been processed, so advance planning is essential.
Mistakes to avoid
Common B2B Shopify migration mistakes to avoid
One of the most common migration mistakes is underestimating the complexity of existing functionality, especially when seemingly simple website features rely on integrations or business rules running behind the scenes.
Another is trying to recreate every feature of the previous platform without considering whether it’s still necessary, which can increase development costs and add avoidable complexity.
Poor data preparation can also create significant problems because duplicate customer records, inconsistent product information, and outdated pricing agreements may transfer into the new environment.
Businesses should avoid leaving integration testing until the final stages of development, as a website may appear functional while critical information is failing to synchronise with operational systems.
Customer communication is equally important because trade buyers may have used the existing website for years and require support adapting to new purchasing processes.
Addressing these issues during planning helps reduce project risk and supports a smoother transition.
Timescales
How long does a B2B Shopify migration take?
The time required to migrate a B2B ecommerce website to Shopify depends on the complexity of the existing platform, the quality of its data and the requirements of the new environment.
A relatively straightforward wholesale migration may take a few months, while projects involving multiple ERP integrations, extensive customer-specific pricing and bespoke functionality can take considerably longer.
Other factors include the size of the product catalogue, the extent of design changes, testing requirements and the availability of internal stakeholders.
For example, a wholesaler with one ERP integration may have a simpler migration than a distributor operating multiple warehouses and complex pricing arrangements.
At Fluid Commerce, we believe realistic migration timelines should be established through structured discovery, allowing businesses to understand the scope, risks and resources required before development begins.
Costs
How much does a B2B Shopify migration cost?
The cost of migrating to Shopify varies significantly depending on the existing platform, the volume of data and the functionality required.
A straightforward migration with limited integrations will generally require less investment than a complex project involving extensive custom development and multiple operational systems.
Main cost considerations include discovery and planning, data migration, design and development, ERP integration, specialist functionality, SEO migration, and testing and launch support.
Businesses should also consider ongoing costs such as Shopify subscriptions, third-party applications, integration services and maintenance.
Although Shopify’s cloud-hosted infrastructure can reduce some responsibilities associated with self-hosted platforms, you must weigh those potential savings against subscription and development costs.
Assessing the total cost of ownership provides a more meaningful comparison than focusing exclusively on the initial migration investment.
Checklist
Your B2B Shopify migration checklist
A structured checklist helps ensure you address essential requirements throughout the migration process.
Before migration
- Audit the existing platform, functionality and integrations.
- Review product, customer and pricing data.
- Select the appropriate Shopify plan and store structure.
- Define project scope, responsibilities and budget.
- Audit SEO performance and existing URLs.
- Agree the migration timeline and launch approach.
During migration
- Clean, map and validate ecommerce data.
- Configure company accounts and purchasing permissions.
- Transfer pricing agreements and payment terms.
- Develop and test ERP integrations.
- Rebuild essential custom functionality.
- Implement SEO redirects and technical requirements.
- Complete functional and user acceptance testing.
Before launch
- Validate customer accounts, pricing and payment terms.
- Test orders, payments and fulfilment.
- Confirm ERP synchronisation and inventory accuracy.
- Check redirects and important landing pages.
- Prepare customer communications and internal training.
- Confirm cutover responsibilities and contingency procedures.
After launch
- Monitor orders, payments and integrations.
- Check customer account access and permissions.
- Review Google Search Console for indexing issues.
- Monitor ecommerce performance and conversion rates.
- Resolve customer issues and identify improvements.
Although individual projects may require additional activities, this checklist provides a practical framework for managing the most important migration requirements.
After launch
What should you monitor after migration?
Launching a new Shopify ecommerce website is an important milestone, but the period immediately afterwards is critical for confirming that the platform operates correctly.
Businesses should monitor order processing, pricing accuracy, payment terms, inventory synchronisation and ERP integrations, while also checking that customers can access their accounts and complete purchases.
SEO performance should be reviewed through Google Search Console, with particular attention paid to indexing issues, broken URLs and changes in organic traffic.
Beyond technical performance, businesses should assess whether migration is delivering its intended commercial benefits. Our article on starting with the B2B customer explains why customer needs should shape platform decisions and ongoing improvements.
For example, wholesalers may want to increase online ordering, distributors may aim to reduce manual processing and manufacturers may seek to improve access to technical product information.
Businesses can measure these outcomes through ecommerce analytics, operational reporting, and customer feedback, helping them identify opportunities for further improvement.
Final thoughts
Final thoughts
Migrating a B2B ecommerce store to Shopify is a significant investment of time and money, but when approached with the right strategy, expertise and planning, it can deliver considerable long-term value. Beyond moving to a new ecommerce platform, a successful migration creates an opportunity to streamline operations, improve the customer purchasing experience and reduce the limitations of legacy technology. For B2B businesses looking to grow, a Shopify migration can provide a more efficient, flexible and scalable ecommerce foundation that supports both current requirements and future ambitions.
Speak to Fluid Commerce
Need expert help with your B2B Shopify migration?
Fluid Commerce works with manufacturers, wholesalers, distributors and other B2B ecommerce businesses looking to migrate or improve their ecommerce platforms.
With experience across Shopify and Magento, we understand the challenges involved in complex migrations and can help businesses evaluate the most appropriate approach.
Whether you are considering migrating from Magento to Shopify, replacing a legacy platform or exploring Shopify Plus, our team can support your project from initial assessment and migration planning through to development, ERP integration and ongoing optimisation.
Contact Fluid Commerce to discuss your B2B Shopify migration project and find out how we can help your business move forward.
