Dynamics Great Plains (GP) has supported many organisations for years, but it was built for an earlier era of ERP deployment and maintenance. Microsoft Dynamics 365 Business Central provides a more connected, cloud-based platform that integrates closely with Microsoft 365, Power BI, and the broader Dynamics 365 ecosystem.
For many businesses, the challenge is not deciding whether modernisation is needed, but understanding when to move, what will change, and how to reduce disruption along the way. This guide is designed to help you answer those questions before you commit to a migration project.
Why Businesses Are Moving from Dynamics GP to Business Central
Dynamics GP has served mid-market businesses reliably for years, but Microsoft’s focus has shifted. Innovation, cloud investment and new functionality are now centred on Dynamics 365 Business Central — Microsoft’s modern, cloud-first ERP platform.
The difference goes beyond technology.
With Dynamics GP, businesses remain responsible for servers, upgrades, security and ongoing maintenance. Over time, this creates higher IT overheads, more disruption for users and growing pressure on internal teams to maintain ageing infrastructure.
Business Central changes that model completely.
Because it runs in Microsoft’s cloud, updates, security, backups and infrastructure are managed automatically. Businesses always have access to the latest capabilities without the cost and complexity of traditional upgrade projects.
The operational benefits extend further.
Business Central integrates natively with Microsoft 365, Power BI, Teams and Excel, allowing employees to work with live ERP data inside the tools they already use every day. Instead of relying on fragmented reporting or spreadsheet exports, teams gain real-time visibility across finance, operations and sales from a single connected platform.
Functionally, Business Central delivers everything most GP customers already rely on — including financials, purchasing, inventory and sales management — while adding modern capabilities such as workflow automation, project management, service management and advanced reporting.
| Area | ODynamics GP (legacy) | Dynamics 365 Business Central (cloud) |
|---|---|---|
| Deployment model | Primarily on‑premises, server‑based | Cloud‑first SaaS |
| Licensing | Perpetual licences with enhancement plans | Subscription‑based per‑user licensing via CSP |
| Roadmap focus | Limited new features, extended support focus | Active Microsoft investment and innovation |
| Updates & maintenance | Customer/partner driven upgrades, projects every few years | Continuous updates managed by Microsoft in the cloud |
| Integration | More siloed, relies on add‑ons and exports | Deep integration with Microsoft 365, Power BI and Power Platform |
| Accessibility | VPN/remote desktop for most remote access scenarios | Browser‑based, mobile apps and secure remote access from anywhere |
| Extensibility | Customisations in core code, upgrades can be harder | Extension‑based model and large AppSource ecosystem of add‑ons |
For many organisations, migration is not simply about replacing GP.
It’s an opportunity to modernise processes, reduce manual work and position the business for long-term growth.
Microsoft continues to support Dynamics GP, but the future roadmap is clear. AI-driven functionality, continuous innovation and platform investment are all happening within Business Central and the broader Dynamics 365 ecosystem.
The question is no longer whether GP still works. It’s whether it can continue supporting the future your business is planning for.
Here's a preview of four of the eight areas covered
Why it’s time to rethink Dynamics GP
Your IT team is maintaining a platform instead of building one. Manual SQL patching, coordinating upgrade projects, managing backup infrastructure — Business Central moves all of this to Microsoft. Your IT capacity shifts to work that actually moves the business forward.
The business case for moving from GP to Business Central
Your chart of accounts is fighting you every time your business evolves. GP encodes every reporting attribute into a fixed account string. Business Central replaces that with a clean dimensions model — no COA redesign every time you add an entity, channel, or cost centre.
What you gain by moving from GP to Business Central
Your customisations are technical debt in disguise. Every Dexterity modification or VBA script that solved a real problem at the time is a regression test waiting to happen. Business Central’s extension model separates customisations from the core, so upgrades stay predictable and your engineering effort goes to genuine differentiation.
Key differences between Dynamics GP and Business Central
Your reporting is always telling you what happened, not what’s happening. GP’s batch-driven architecture means decisions get made on data that’s already out of date. Business Central is built around real-time visibility, native Power BI integration, and Copilot-assisted analysis in plain language.
