Microsoft 365 Alert – Service Degradation – Microsoft 365 suite – Some users can’t open, or see delays with, premium plans in Microsoft Planner or projects in Project for Web – RESOLVED

Announcements Sourav Nandi

18/08/2025 08:42:00 AM

NHSmail Reference: INC46605169

Microsoft Reference: MO1135326

Issue Status: RESOLVED

Issue Description: Some users can’t open, or see delays with, premium plans in Microsoft Planner or projects in Project for Web.

Final Update: 18/08/2025 08:42:00 AM – Microsoft have completed restarting the affected infrastructure and confirmed impact was successfully remediated.

Scope of impact: Your organization was affected by this event, and some users accessing premium plans in Microsoft Planner or projects in Project for the web were affected.

Root cause: A recent configuration change resulted in spike in memory usage on infrastructure supporting the Project for Web and Microsoft Planner services which was inhibiting premium plan and project access requests from being processed or completing in a timely manner.

Next steps: Microsoft are reviewing their configuration change testing and validation procedures to identify opportunities to improve impact detection and prevent similar future occurrences.