Microsoft 365 Alert – Service Degradation – Microsoft 365 suite – Users may fail to retrieve Microsoft OneNote content using Microsoft Graph APIs – RESOLVED

Announcements Shagufta Naaz

04/06/2026 08:31:00 AM

NHSmail Reference: INC46842525

Microsoft Reference: MO1338742

Issue Status: RESOLVED

Issue Description: Users may fail to retrieve Microsoft OneNote content using Microsoft Graph APIs.

More info: Impacted APIs include:
GET-recentnotebooks
GET-notebooks
GET-sections
GET-pages
POST-pages
POST-sections
GET-sectiongroups

Final Update: 04/06/2026 08:31:00 AM – Microsoft has confirmed that our deployment of the previous unimpacted service build version has completed, and that the impact has been fully remediated for all affected users.

Scope of impact: This issue may affect some users of Microsoft Graph APIs retrieving Microsoft OneNote content.

Root cause: A recent build deployment introduced an issue which is causing failures when utilizing impacted APIs to retrieve Microsoft OneNote content.

Next steps by: Microsoft are continuing to monitor service health to ensure that this impact does not reoccur.
They will analyze their internal validation processes to identify any avenues for enhancing quality assurance to ensure that potential issues are preemptively remediated.