Dynamics NAV and Dynamics 365 Business Central are not the same product, but they are closely related. Business Central is the modern, cloud-first successor to Dynamics NAV, built on the same core ERP foundation but redesigned for a subscription-based, cloud-native environment. Microsoft ended mainstream support for Dynamics NAV in 2023, making Business Central the active platform for new implementations and ongoing development. Below, we break down the key differences in architecture, licensing, functionality, and what the shift means for organisations still running NAV today.
Is Dynamics NAV the same as Dynamics 365 Business Central?
Dynamics NAV and Dynamics 365 Business Central are not the same product, though Business Central is the direct evolution of NAV. Microsoft rebranded and rebuilt Dynamics NAV as Business Central in 2018, transitioning from an on-premises, perpetual-licence model to a cloud-first SaaS platform. The two share foundational ERP logic, but Business Central represents a significant architectural and commercial shift from its predecessor.
For many years, Dynamics NAV was one of Microsoft’s flagship ERP solutions for small and mid-sized businesses, delivered primarily on-premises. When Microsoft restructured its Dynamics product family under the Dynamics 365 umbrella, NAV became Business Central. The older NAV versions (NAV 2009, NAV 2013, NAV 2016, NAV 2018, and so on) remain in use at many organisations, but Microsoft no longer develops them. Business Central is where all new features, integrations, and support are directed.
So while the two products share DNA, running NAV today means running a system that is no longer receiving active development, security updates, or new integrations from Microsoft.
What are the main technical differences between NAV and Business Central?
The most important technical difference is architecture: Dynamics NAV is built for on-premises deployment, while Business Central is designed as a cloud-native SaaS platform hosted on Microsoft Azure. This shift changes how the system is maintained, updated, and extended, moving responsibility for infrastructure and updates from internal IT teams to Microsoft.
In Dynamics NAV, customisations were typically built using C/AL (Client/AL) code, which was tightly embedded in the application. This made upgrades complex and expensive, because every customisation had to be manually reviewed and rewritten with each version change. Business Central replaces this approach with an extension-based model using AL code. Extensions sit on top of the core application rather than inside it, which makes upgrades significantly cleaner and less disruptive.
Business Central also integrates natively with the broader Microsoft 365 ecosystem, including Teams, Power BI, Power Automate, and SharePoint. NAV integrations with these tools were possible but required more manual configuration and custom development. In Business Central, these connections are built in and maintained by Microsoft as part of the platform.
Update cycles also differ. NAV customers controlled when they applied updates, which often meant organisations fell behind by years. Business Central receives two major releases per year automatically, keeping all customers on a current, supported version without requiring manual upgrade projects.
How does licensing differ between Dynamics NAV and Business Central?
Dynamics NAV used a perpetual licensing model, where organisations paid a one-time licence fee plus annual enhancement costs. Business Central uses a subscription model, where organisations pay a monthly per-user fee. This is one of the most commercially significant differences between the two platforms.
Under the NAV model, organisations owned their software licence outright and could continue running it indefinitely, even after Microsoft stopped providing updates. The ongoing cost was the annual enhancement plan, which entitled customers to new versions but did not require them to upgrade. This gave finance teams predictability but also allowed organisations to defer upgrades for years, sometimes decades.
Business Central pricing is structured around named users, with two main licence types: Essentials and Premium. Essentials covers core financials, supply chain, and project management. Premium adds manufacturing and service management capabilities. Microsoft also offers Team Member licences for users who need read access or light tasks. Because the platform is hosted on Azure, there are no separate infrastructure costs for the ERP system itself.
For organisations currently on NAV, the shift to a subscription model requires a commercial reassessment. The total cost of ownership calculation changes, and IT budget holders need to weigh ongoing subscription costs against the elimination of infrastructure, upgrade projects, and support overhead.
What functionality does Business Central have that NAV does not?
Business Central includes a range of capabilities that were not available in Dynamics NAV, most of them enabled by its cloud-native architecture and deep integration with the Microsoft 365 platform. These are not minor incremental features but meaningful additions that change how users work day to day.
Key functional advances in Business Central include:
- Native Power BI integration for embedded reporting and dashboards directly within the ERP interface
- Microsoft Teams integration, allowing users to share and act on Business Central records within Teams conversations
- Copilot and AI-assisted features, including cash flow forecasting, late payment prediction, and automated text generation for item descriptions
- Automated workflows through Power Automate, with pre-built templates for common approval and notification processes
- Improved mobile experience with a responsive interface designed for tablets and smartphones
- Continuous update delivery, meaning new functionality is added twice a year without requiring a separate upgrade project
- AppSource marketplace, giving access to a large ecosystem of certified third-party extensions
NAV could be extended through add-ons and third-party solutions, but the ecosystem was fragmented and integrations required more custom development to maintain. Business Central’s extension model and AppSource marketplace create a more standardised and manageable way to extend the platform.
Should organisations still running NAV upgrade to Business Central?
Yes, organisations still running Dynamics NAV should plan a migration to Business Central, and in 2026 that conversation is increasingly urgent. Microsoft ended mainstream support for all NAV versions in 2023, which means no new security patches, no bug fixes, and no feature development for the NAV platform. Running an unsupported ERP system carries growing compliance, security, and operational risk.
Beyond the support question, staying on NAV means missing out on the functional advances described above and falling further behind competitors who are benefiting from Business Central’s continuous release cycle. The longer an organisation waits, the wider the gap becomes, and the more complex the eventual migration.
That said, a NAV to Business Central migration is not a simple upgrade. It is a genuine ERP transformation project. Customisations built in C/AL need to be assessed and either rebuilt as extensions or replaced with standard Business Central functionality. Data needs to be cleaned, mapped, and migrated carefully. Users need to be prepared for changes in how they work. Data migration management is one of the areas where organisations consistently underestimate the effort required, and where errors can have real operational consequences.
The right starting point is an honest assessment of where your current NAV environment stands: what customisations exist, what data quality looks like, and what the business needs from a modern ERP. That baseline assessment shapes a realistic migration roadmap and helps avoid committing budget to a project scope that is not properly understood. We cover our full range of services for exactly these kinds of transformations, from initial assessment through to go-live and beyond.
How Optinus helps with your Dynamics NAV to Business Central migration
We work with organisations at every stage of their Microsoft Dynamics journey, including companies still running NAV who need a clear, structured path to Business Central. Here is what that looks like in practice:
- Maturity assessment: We start by mapping your current NAV environment, customisations, data quality, and business processes before any roadmap or budget is committed
- Project and program management: Our consultants have hands-on experience running real ERP migrations at leading multinationals, not just theoretical frameworks
- Data migration management: We use rigorous As-Is/To-Be analysis and structured testing procedures to prevent data loss and errors during the transition
- Cutover management: We plan and monitor the go-live end-to-end, including hypercare and aftercare, so operational continuity is never at risk
- Change management: We address both the technical and human side of the migration, helping your teams adopt Business Central in a way that sticks
- Flexible delivery: We work on-site and remotely, across the Netherlands, Belgium, and internationally
If you are ready to take the next step, get in touch with our team for a no-obligation conversation about your situation. Or if you want to understand more about who we are and how we work, learn more about what we do.
