Scope: Microsoft Sentinel is not being discontinued; the management experience is consolidating into Microsoft Defender.
Microsoft has extended the deadline for managing Microsoft Sentinel through the Azure portal to 31 March 2027. The company had previously set 1 July 2026 as the transition deadline.
The change affects the management interface rather than ending Sentinel itself. Microsoft says customers are moving to the unified Defender portal.
Verified facts
- The original transition deadline was 1 July 2026.
- Microsoft extended the Azure-portal sunset to 31 March 2027.
- The underlying Sentinel product continues; the management plane is changing.
Analysis
This is a platform-consolidation event with operational consequences for workflows, permissions and automation. It should not be framed as Sentinel being retired.
Limitations
Microsoft does not publish a complete customer-adoption rate or universal migration-complexity measure.
Sources
Microsoft Sentinel Blog: updated transition timeline
Microsoft Security Community: architecture considerations