For many long-time Microsoft Dynamics NAV users, the shift to Dynamics 365 Business Central feels inevitable but not always simple. You’ve built processes, reports, and customizations over years. The question isn’t whether Business Central is the future. It’s how to move there without losing what makes your business run.
Our Dynamics team brings decades of combined experience guiding NAV customers through successful migrations. Below are the seven most common questions we hear and straightforward answers that help leaders make confident decisions about their Dynamics NAV to Business Central migration.
1. Do NAV users have to migrate to Business Central?
No. But staying on NAV comes with a deadline. Microsoft will continue extended support for Dynamics NAV until January 2028. After that, there’s no new functionality, security patches, or compliance updates. While you can remain on-premises, the only path to Microsoft’s modern cloud ecosystem runs through Business Central.
Business Central isn’t just a version upgrade. It’s a platform built for long-term agility. It integrates natively with Microsoft 365 and Power Platform, giving you connected workflows and AI-assisted insights that simply don’t exist in NAV.
2. What are the biggest benefits of moving from NAV to Business Central?
Leaders often expect “cloud” to mean convenience, but the value goes deeper. Business Central delivers:
- Anytime access from any device, anywhere
- Automatic updates without IT downtime
- Built-in integration with Outlook, Teams, and Power BI
- Reduced hardware and maintenance costs
- AI-driven automation that improves forecasting, cash flow, and customer service
In short, it’s not just an ERP upgrade. It’s an opportunity to modernize how your business operates day to day.
3. How complex is the migration process?
Migrating from NAV to Business Central isn’t a one-click operation. Microsoft requires that all NAV environments upgrade first to Business Central on-premises (version 14) before transitioning online. This step is essential because it’s where the legacy C/AL code base used in NAV is converted into the modern AL extension model, which is required for Business Central online.
At Crestwood, our in-house migration specialists handle this process end to end. We map your current data structure, evaluate customizations, and migrate only what adds value. Our EOS-driven project framework ensures each phase; discovery, migration, validation, and optimization, stays aligned with your business goals.
That means fewer surprises, cleaner data, and faster time to value, often 30% faster than typical ERP providers.
4. What incentives are available for NAV customers moving to the cloud?
Microsoft is actively encouraging migrations with the Bridge to Cloud 2 offer, which provides a 40% discount for eligible customers over a 3-year term when moving to Dynamics 365 online through a certified partner.
They’re also funding partner-led migration assessments, which help you plan your move with confidence and precision. Crestwood participates in these funded assessments, giving clients clarity on project scope and total cost of ownership before committing to migration.
5. How much will the migration cost?
It depends on your environment’s complexity, but here’s the truth: cloud ERP isn’t more expensive. It’s more predictable.
Business Central’s subscription model removes hardware, maintenance, and upgrade costs that often make on-premises ERP more expensive over time.
Microsoft provides a TCO (Total Cost of Ownership) model, but our clients find the real savings in efficiency: faster reporting, less manual work, and fewer integration headaches.
“When we migrate NAV clients, the focus isn’t just on technology,” says Dan Milani, Director of Dynamics at Crestwood Associates.
“It’s about freeing your team from the manual work NAV created over time so you can reinvest that energy into innovation and growth.”
6. What happens to my customizations and data?
Customizations in NAV were traditionally built using C/AL code, which isn’t compatible with Business Central online. In the cloud, all changes move to the AL extension model, a safer and more modular way to adapt the system.
Our team evaluates your existing NAV extensions, determines which add real value, and rebuilds or replaces them in Business Central. This process ensures your system remains upgradable and avoids the risk of custom code breaking when Microsoft releases updates.
Data integrity is just as critical. Using automated validation tools and our Crestwood Cloud infrastructure, we ensure your historical transactions, GL balances, and master records are migrated accurately, with audit-ready visibility throughout.
7. How do I know my data is secure in the cloud?
Security is one of the biggest benefits of Business Central. Microsoft invests over $1 billion annually in cloud security and employs more than 3,500 cybersecurity experts to protect customer data.
Business Central meets major global compliance standards and offers 99.9% uptime SLAs. Your data is stored in regional Microsoft data centers, typically in your own country or the nearest location, to meet both performance and compliance requirements.
A Look Ahead: The Future of ERP Modernization
Looking forward, the migration from NAV to Business Central isn’t just about keeping up. It’s about future-proofing. Microsoft continues to expand AI capabilities within Business Central, from predictive analytics to automated transaction categorization. In the next few years, we’ll see ERP systems that learn from your data and adapt in real time, making decisions faster and smarter than ever.
Businesses that migrate now will be the first to capitalize on these advancements, while those that wait risk falling behind both technologically and competitively.
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