Background
A manufacturing organisation operated a multi-entity ERP environment on Microsoft Dynamics NAV 2018, which was approaching end‑of‑life and required a transition to Microsoft Dynamics 365 Business Central Online. The modernisation needed to preserve all historical and transactional data, support ongoing finance and manufacturing operations, meet Australian data residency requirements, and be delivered within a 40‑day timeframe following partner constraints.
The Challenge
The organisation’s Microsoft Dynamics NAV 2018 environment had reached a critical transition point. The platform was approaching end-of-life, with increasing complexity associated with maintaining legacy C/AL customisations and supporting ongoing business change.
On-premises infrastructure introduced operational overhead and constrained scalability, while upgrade pathways had become increasingly complex and high risk.
A further constraint emerged when the incumbent implementation partner confirmed they could not deliver the required modernisation within the organisation’s timeframe, creating urgency for a partner capable of delivering a low-risk transition without disruption.
The Objective
- Transition from NAV 2018 to Business Central Online
- Preserve full historical and transactional data
- Maintain uninterrupted finance and manufacturing operations
- Align with enterprise architecture and governance standards
- Ensure Australian data residency compliance
- Deliver within 40 days
The Approach
The solution was deployed within Australian Azure datacentres to align with data sovereignty, governance, and compliance requirements. A full data migration was completed, encompassing master, transactional, and historical data, using Microsoft‑supported tooling to ensure continuity and data integrity.
As part of the modernisation approach, legacy C/AL customisations were refactored into AL extensions, reducing technical debt and aligning the solution with Microsoft’s cloud‑first architecture. The migration concluded with a controlled cutover, following a structured approach that included validation cycles and rehearsals to ensure operational continuity and minimise business disruption.
The Outcome
The organisation now operates on Microsoft Dynamics 365 Business Central Online, with a cloud-native ERP environment that supports ongoing finance and manufacturing operations without disruption.
The transition preserved full data continuity across historical and transactional records, while modernising legacy customisations into a maintainable AL extension architecture aligned to Microsoft’s roadmap.
Deployed within Australian Azure datacentres, the platform meets local data residency and governance requirements while providing a scalable foundation for future business growth.
Before → After Transformation
Before (NAV 2018 On-Prem) | After (Business Central Online) |
Microsoft Dynamics NAV 2018 with legacy C/AL customisations | Microsoft Dynamics 365 Business Central (cloud-native) |
On-premises infrastructure with ongoing maintenance overhead | Deployed in Australian Azure datacentres |
Complex and high-risk upgrade pathways | Modern AL extension-based architecture |
Limited scalability and agility | Cloud platform aligned to Microsoft roadmap |
High dependency on specialist support | Full client administrative control |
Strategic Impact
This transformation demonstrates that complex legacy ERP environments can be modernised rapidly and safely without disrupting core operations.
The organisation transitioned from a constrained on-premises ERP to a modern cloud platform while maintaining continuity, preserving data integrity, and reducing legacy system complexity.
Exco Partners delivered a controlled ERP modernisation that established a scalable, cloud-aligned foundation for long-term growth.
Technology
Azure
Business Central
Dynamics 365
Power BI