What Is End of Support? — Risks of Using Unsupported Software

26
March

For Executives

What Is End of Support? — Risks of Using Unsupported Software and the Dynamics AX Case Study

End of Support (EOS) is the date when a software vendor officially stops providing technical support — no more security patches, no bug fixes, no compatibility updates. The software still works, but risks increase every day. This is a critical planning consideration for executives.

Quick Summary: End of Support = vendor stops maintaining the product (still usable but risky) / End of Life = vendor stops everything (no sales, no updates, no fixes). Executives should plan migration at least 1-2 years before the EOS date.

End of Life vs Mainstream Support vs Extended Support

Software vendors (such as Microsoft, Oracle, SAP) typically divide a product's lifecycle into three main phases:

Phase	What You Get	What You Don't Get
Mainstream Support	Bug fixes, new features, security patches, full technical support	-
Extended Support	Security patches only, paid support incidents	No new features, no general bug fixes, no guaranteed compatibility with new hardware/OS
End of Life (EOL)	Nothing at all	No patches, no support, no sales, no updates of any kind

Risks of Running Unsupported Software

Security vulnerabilities — no patches to close newly discovered exploits; hackers can use publicly disclosed vulnerabilities to attack your system
Hardware/OS incompatibility — when upgrading servers or operating systems, legacy software may not function correctly
Audit findings — auditors (government auditors, external accountants) may flag the organization for running unsupported software
Talent shortage — experts in legacy systems decrease every year; hiring costs increase, or specialists simply cannot be found
Rising costs — some vendors offer "Custom Support Agreements" at 2-5x the normal price

Case Study: Microsoft Dynamics AX 2012 R3

Microsoft Dynamics AX 2012 R3 is an ERP system used by several Thai government agencies. Its support timeline is as follows:

Event	Date	Impact
Mainstream Support ended	October 12, 2021	No new features, no general bug fixes
Extended Support ends	January 10, 2028	No security patches, no support of any kind
Microsoft's recommendation	Since 2021 onwards	Migrate to Dynamics 365 (Cloud) or switch to a new ERP

Why Did BEDO and TMF Migrate Before AX Support Ended?

Organizations like BEDO (Biodiversity-Based Economy Development Office) and TMF (Thai Media Fund) decided to migrate from Dynamics AX to Saeree ERP before Extended Support expires, because:

Advance planning — implementing a new ERP system takes 6-12 months; waiting until the last minute is too risky
Reduced licensing costs — Dynamics AX has high annual license fees; migrating earlier saves long-term budget
Better fit for requirements — Saeree ERP is designed specifically for Thai government agencies, supporting procurement regulations, financial compliance, and Disaster Recovery
Audit compliance — running a fully supported system avoids audit findings from government auditors

What Is End of Support? — Risks of Unsupported Software