How to Migrate Dynamics NAV to Business Central

You’re not alone if your Dynamics NAV (Navision) setup still “does the job”, at least on the surface. The system might be deeply embedded across your operations, carrying years of customisations, workarounds, and user habits. But when reporting takes longer than decision-making, integrations fail silently, and updates convert into risk rather than a routine, the cracks become too costly to ignore.

That’s where most businesses hit a wall: they know Business Central is the future, but the journey from NAV feels murky, risky, and resource-heavy. What stays? What breaks? How much downtime is too much? And is your team ready for what comes after go-live?

In this article, you’ll find a clear explanation of what migrating from NAV to Business Central involves, why it matters, what challenges to expect, how the process works, and what steps help avoid disruption while making the most of your new system.

• Business Central delivers faster updates, better visibility, and improved integration across Microsoft tools.
• Migration paths include both upgrades and clean reimplementations, each suited to different system conditions.
• Clean data, a review of customisations, and user readiness are critical to a smooth transition.
• Performance issues and integration gaps post-migration are common, but avoidable with proper planning.
• With Alberon’s tailored migration support, you gain more than a system shift; you build for long-term flexibility.

Why You Should Migrate from Dynamics NAV to Business Central?

The shift from NAV to Business Central is not only for keeping up with Microsoft’s roadmap, it’s about getting ahead of the everyday challenges that slow your teams down and limit long-term flexibility.

• Microsoft Has Moved On—And So Has Support: Microsoft has officially shifted its focus to Business Central, which means limited updates, reduced support, and a shrinking ecosystem for NAV. Over time, maintaining it will only get more expensive, while the value you get from it keeps dropping.
• Cloud-Ready Means Business-Ready: Business Central is built with modern infrastructure in mind. Unlike NAV, which was designed for on-premise environments, Business Central runs smoothly on the cloud, offering secure remote access, better scalability, and fewer maintenance headaches.
• Faster Updates, Lower Overheads: NAV upgrades are often time-consuming, expensive, and risky, so much so that many organisations skip them for years. Business Central brings regular, automatic updates with minimal disruption, ensuring your system evolves with your needs rather than holding you back.
• Improved Reporting and Data Visibility: Business Central closes the reporting gap with more flexible reporting tools, tighter integration with Power BI, and better access to real-time data, enabling quicker decisions with fewer workarounds.
• Smoother Integrations Across the Microsoft Ecosystem: Whether it’s Outlook, Teams, Excel, or Power Automate, Business Central fits seamlessly into the wider Microsoft 365 suite. That makes everything from approvals to reporting smoother, faster, and more centralised.

What You Will Choose: Upgrade vs. Clean 

When moving from NAV to Business Central, there’s no one-size-fits-all approach. The right migration path depends on how your current system is set up, how customised it is, and how ready you want the new setup to be in the future. Broadly, there are two main ways to make the shift:

Aspect	Upgrade (Technical Migration)	Reimplementation (Fresh Start)
Approach	Moves the existing setup (data, configuration, selected customisations) to Business Central	Builds a new Business Central environment from scratch
Best For	– NAV 2018 or near versions- Minimal customisations- Businesses wanting a faster transition	– Older NAV versions- Heavily customised systems- Businesses planning process redesign or cloud shift
Pros	– Quicker and less disruptive- Preserves historical data- Lower cost initially	– Clean, modern setup- Removes outdated customisations- Unlocks full Business Central capabilities
Limitations	– May carry over inefficiencies- Limited flexibility for future enhancements	– Longer timeline- Higher effort and cost upfront- Requires retraining
Scalability	Moderate	High

Steps to Migrate from Dynamics NAV to Business Central

Migrating from Dynamics NAV to Business Central involves a structured process designed to ensure data integrity, system compatibility, and user readiness. The following steps guide you through a smooth transition while minimising disruption to daily operations.

Prerequisites:

• Evaluate current NAV setup, including customisations, integrations, and data structure.
• Define clear objectives for the migration (functionality, performance, integration).
• Identify and clean critical data for accuracy and relevance.
• Create a full backup of the NAV database to prevent data loss.
• Review existing custom extensions and plan for their adaptation or replacement.
• Check that the target environment meets Business Central’s technical requirements.
• Inform and align stakeholders with the migration’s goals and impact.

Step 1: Install Business Central

Prepare the Business Central environment, whether on-premises or cloud-based, by installing the latest version, configuring server components, and setting up required services.

Step 2: Connect to the Application Database

Link Business Central to the upgraded NAV database. This connection allows Business Central to recognise and access the application-level data required for migration.

Step 3: Compile NAV Objects

Using the NAV Development Environment, compile all objects (tables, codeunits, pages, etc.) to ensure compatibility and prevent runtime errors during migration.

Step 4: Upgrade the NAV Solution

If Business Central does not directly support your current NAV version, perform version-by-version upgrades (e.g., NAV 2015 → NAV 2018) until it’s ready for migration.

Step 5: Migrate the Data

Microsoft’s Data Migration tools, like the Data Upgrade Toolkit or Intelligent Cloud Migration, can be used to move essential records such as customers, vendors, inventory, general ledger entries, and transactions into Business Central.

Step 6: Reconfigure or Rebuild Customisations

Convert legacy C/AL customisations into Business Central-compatible AL extensions. Replace or remove unnecessary custom logic using out-of-the-box Business Central functionality where feasible.

Step 7: Conduct System Testing

Perform extensive validation of the migrated data, run business-critical processes, and ensure the system behaves as expected. This should include functional, security, and performance testing.

Step 8: Deliver User Training

Schedule hands-on training for relevant teams to help them understand the new interface, features, and updated workflows of Business Central.

Step 9: Switch to Business Central (Go-Live)

Move live operations from NAV to Business Central. During this cutover phase, ensure minimal downtime and monitor closely for any disruptions or issues.

Step 10: Provide Post-Migration Support to Your Team

Once the migration is complete, your team will still need guidance as they get used to Business Central. Set up a support system that includes performance monitoring, a help desk for quick issue resolution, and regular check-ins to gather feedback. Use this phase to fine-tune workflows, resolve unexpected problems, and ensure everything runs smoothly during the transition.

Also Read: What’s New in Dynamics 365 Business Central

Migration Challenges and How to Overcome Them

Even with careful planning, migrating from NAV to Business Central can come with a few hurdles. Here’s what organisations typically encounter, and how to proactively tackle them:

1. Legacy Customisations Don’t Translate Well

Challenge: Many NAV deployments have heavily customised C/AL code that doesn’t directly migrate to Business Central’s AL extension-based model.
Solution: Conduct a thorough customisation audit beforehand. Identify which custom code can be retired, replaced with standard functionality, or rebuilt as AL extensions. Tools like the Code Transformation Tool from Microsoft can streamline this process.

2. Data Integrity and Cleanup

Challenge: Legacy data may be inconsistent, redundant, or no longer relevant, leading to bloated databases and migration delays.
Solution: Plan a data archiving and cleanup phase before migration. Collaborate with business units to determine the data that truly needs to be migrated, and utilise data validation tools during the migration to identify errors early.

3. Performance Bottlenecks After Migration

Challenge: Users sometimes experience slow system performance post-migration due to improperly sized infrastructure or unresolved configuration issues.
Solution: Conduct performance testing during UAT (User Acceptance Testing). Ensure the target infrastructure (especially in cloud environments) is scaled appropriately for user load and data volume.

4. User Resistance and Learning Curve

Challenge: Employees may struggle with the new interface and workflows in Business Central, especially if they’ve used NAV for years.
Solution: Invest in training sessions focused on real business scenarios. Provide documentation and quick reference guides. Ensure key users are involved during testing to build familiarity early.

5. Integration Failures

Challenge: External systems (e.g., CRM, payroll, or document management tools) may not reconnect smoothly after migration.
Solution: Revalidate each integration post-migration. Where APIs or endpoints have changed, update the configurations. Test data flow across systems before go-live.

Why Alberon Is the Right Partner for Your NAV to Business Central Migration

Migrating from Dynamics NAV to Business Central is not just “an upgrade”; it’s a full transition into a more flexible, cloud-ready ecosystem. This kind of shift demands more than just technical expertise; it requires a partner who understands business operations, the complexities of legacy systems, and future scalability. Alberon offers a focused, practical approach, besides just implementation, to ensure long-term value.

Key Reasons to Choose Alberon:

• Tailored Migration Planning: Alberon builds a migration roadmap based on your business structure, legacy system configuration, and growth trajectory, with no templated solutions.
• Integration Continuity: From CRMs to payroll tools, they ensure your connected systems stay functional by rebuilding or updating integrations in the new environment.
• User-Centric Rollout: Their approach includes scenario-based user training, making it easier for teams to adapt to the new interface and workflows with minimal downtime.
• End-to-End Support: From pre-migration prep to post-go-live fine-tuning, Alberon stays hands-on through every phase, resolving technical challenges and aligning the system with real-time business needs.
• Industry-Specific Understanding: With experience across sectors like manufacturing, finance, and education, Alberon anticipates domain-specific requirements and tailors the system accordingly.

Conclusion

Migrating from Dynamics NAV to Business Central is an important step for any organisation aiming to stay competitive and agile in today’s business environment. While the process involves challenges, from data integrity to user adaptation, the right preparation and expert guidance can turn potential obstacles into opportunities for growth and innovation. 

Alberon’s comprehensive approach ensures that your migration is not just a technical upgrade, but a strategic transformation tailored to your unique business needs. By choosing a partner who prioritises seamless integration, user empowerment, and ongoing support, you position your company to fully leverage Business Central’s capabilities and drive sustained success well into the future.

Contact Alberon today to discuss your migration needs and discover how our tailored solutions can shape your business for the future