Every version of Dynamics AX, including AX 2009 SP1, AX 2012, AX 2012 R2, and AX 2012 R3, is now out of Microsoft support. Extended support for all versions has also ended. Organizations still running AX face four pressures that compound every year they stay.
Microsoft no longer releases security hotfixes, non-security fixes, or regulatory updates for any Dynamics AX version. Tax changes, e-invoicing mandates, and statutory reporting updates now have to be built and maintained by your own team or partner, in every country you operate in.
AX runs on Windows Server and SQL Server infrastructure that ages out on its own schedule, and years of overlayered customizations make every change slower to build and riskier to test. At the same time, developers have moved to Dynamics 365 finance and operations apps, where customization is built as extensions, so experienced AX specialists get harder to find and more expensive to keep.
Copilot, AI agents, and the Model Context Protocol (MCP) server are built into Dynamics 365 Finance and Supply Chain Management. None of them run on AX. Microsoft's own migration guidance frames the move to the cloud as the way on-premises customers gain Copilot, Power BI, and Power Automate scenarios.
Connecting AX to Power Platform, Microsoft Fabric, and modern SaaS applications usually means custom middleware built around AX's Application Integration Framework. Dynamics 365 Finance and Supply Chain Management connects through standard data entities, OData APIs, and dual-write with Microsoft Dataverse.
The right route from Dynamics AX to Dynamics 365 depends on your AX version, the AX features you use, and how much your business has changed since AX went live. Microsoft supports a true upgrade only from AX 2012 R2 and AX 2012 R3. Every other starting point moves to Dynamics 365 through data migration or reimplementation.
| Your AX Version | Path to Dynamics 365 | What Carries Over |
|---|---|---|
| AX 2012 R3 | Direct upgrade | Custom code, data, and full transaction history |
| AX 2012 R2 | Direct upgrade | Custom code, data, and full transaction history |
| AX 2012 RTM | Upgrade to AX 2012 R3 first, or reimplement | Depends on the route chosen |
| AX 2012 with virtual companies or data partitions | Reimplementation | Selected master data and open transactions |
| AX 2009 SP1 | Data migration with Microsoft's DMT | Data. Code is rebuilt on Dynamics 365 |
Source: Microsoft Learn, “Upgrade from AX 2012 to finance and operations.”
Dynamics 365 Finance and Supply Chain Management, formerly Dynamics 365 for Finance and Operations (D365 F&O), is the cloud successor to Dynamics AX. It keeps AX's X++ foundation but changes how the system is hosted, updated, extended, and connected. Here's how the two compare across key dimensions.
Alletec follows Microsoft's own upgrade framework to move Dynamics AX to Dynamics 365 Finance and Supply Chain Management. The Alletec Upgrade Factory delivers each stage with Microsoft's upgrade tools and Alletec's own automation, while Microsoft's Success by Design guidance governs the whole project.
Assess and plan the upgrade
We run Microsoft's Upgrade analyzer and code upgrade estimation against your AX environment, alongside Alletec's scans of customizations, ISV add-ons, integrations, reports, and data volume. We then design the target solution: which customizations become extensions, which retire in favor of standard features, and which data moves with you.
What you get: a recommended migration path, a fixed-price scope, a sprint plan with milestones, an AI-readiness plan for Copilot and agents, and confirmed eligibility for Microsoft migration offers.
Convert, build, and upgrade data
AX code is converted to extensions with Microsoft's code upgrade service, integrations are rebuilt on data entities and APIs, and data upgrades run repeatedly in development and sandbox environments while AX keeps running. Every converted extension is checked by an AI code reviewer before it reaches production.
Test, rehearse, and go live
Functional, integration, and performance testing, plus mock cutovers that rehearse go-live inside your downtime window. Role-based training runs in parallel, followed by a formal sign-off gate, a rehearsed cutover with a dedicated war room, and hypercare written into the contract.
An AX migration is the best moment to prepare for AI, because data, customizations, and processes are already being reworked. Copilot and agents in Dynamics 365 Finance and Supply Chain Management depend on clean master data, standard processes, and clear approval rules. Alletec puts those requirements in scope from the first assessment, instead of leaving AI for a later phase.
Duplicate customers, inactive vendors, and inconsistent item records weaken Copilot summaries and agent decisions. Cleaning data before the upgrade also shrinks the database, which Microsoft notes reduces both upgrade time and the storage component of your subscription cost.
Many AX customizations filled gaps that Dynamics 365 now covers natively. Retiring them keeps your system on the standard path, where Copilot features and agents work the way Microsoft designed them.
Features such as the Collections coordinator summary, the Workflow history summary, and Copilot-assisted demand plan analysis are configured and tested during the project. Finance and supply chain teams use them from the first day on Dynamics 365.
The Account Reconciliation Agent and procurement agents, currently in preview, run as configurable automation with approval workflows. The migration defines who reviews and approves agent actions before any agent goes live.
The Dynamics 365 Finance and Supply Chain Management MCP server gives agents built in Copilot Studio structured, secure access to F&SCM data and business logic. AX-era custom automations can be rebuilt as agents where that's the better fit.
For the full list of Copilot features and agents, see D365 Finance & SCM.
Alletec is a certified Microsoft AIM Modernization Center. AIM (Accelerate, Innovate, Move) is Microsoft's program for helping qualified on-premises customers, including Dynamics AX customers, move to Dynamics 365 in the cloud. As an AIM Modernization Center, Alletec brings the AIM assessment, Microsoft-backed migration guidance, and Microsoft's current migration offer, Bridge to the Cloud 3, into every AX engagement.
The first step in the AIM program. It maps the business outcomes of moving from AX to Dynamics 365 and defines your upgrade process, budget, and timeline.
AIM gives access to Microsoft's Success by Design implementation guidance and FastTrack services during the migration, with Alletec working alongside Microsoft's teams.
Microsoft's current migration promotion runs from January 1, 2026, to December 31, 2027. Eligible on-premises Dynamics customers, including AX customers, get a 30% discount on qualifying Dynamics 365 online licenses for a fixed three-year term, with dual access rights to keep running AX while they migrate. Eligibility generally requires an active Enhancement Plan, so Alletec confirms yours during the assessment.
Learn more about Alletec's AIM Modernization Center.
IT and Consulting Services · USA
Dynamics AX → Dynamics 365 Finance and Supply Chain Management
Spectraforce, a US-based IT and consulting services company, migrated from Dynamics AX to Dynamics 365 Finance and Supply Chain Management with Alletec, opening wider opportunities to improve team performance.
Read the full case studyMoving off AX starts a new operating model. Dynamics 365 Finance and Supply Chain Management receives regular service updates from Microsoft, so extensions, integrations, and agents need testing and care on a steady cadence rather than in multi-year upgrade cycles.
The hypercare team from your migration hands over to a named support team that already knows your extensions, integrations, and data.
Each Microsoft service update is regression-tested against your extensions and integrations in a sandbox before it reaches production.
New Copilot features and agents are adopted as Microsoft releases them, and custom code is retired as standard features catch up.
Explore Alletec's Dynamics 365 Support Services.
Alletec brings Microsoft-verified credentials, including certified AIM Modernization Center status, a dedicated migration delivery center, and AX-era experience to every Dynamics AX to Dynamics 365 migration.
Alletec has earned Microsoft Solution Partner Designation in all 6 solution areas validating full stack expertise across Business Applications, Data & AI, Azure Infrastructure, Digital & App Innovation, Modern Work, and Security.
Alletec is a member of the Microsoft Inner Circle, representing the top 1% of Microsoft partners globally.
Alletec is a recognized Microsoft FastTrack partner, with direct access to Microsoft engineering during complex migrations.
Alletec is a certified Microsoft AIM Modernization Center, bringing Microsoft's AIM assessment and migration offers into every AX engagement.
Alletec has delivered Dynamics since the AX era, so version-specific AX quirks are familiar ground, not billable discovery.
Microsoft Success by Design with Hybrid-Agile layered in, and Copilot and agent readiness planned from the first assessment.
Alletec brings 25+ years of Microsoft full-stack expertise, all six Microsoft Solution Partner Designations, and the Alletec Upgrade Factory to every Dynamics AX migration. Book a migration assessment, and a migration architect will review your AX version, customizations, and data, then recommend the right path to Dynamics 365 Finance and Supply Chain Management.