Users may have been unable to sign into the OneNote Web Clipper

Title: Users may have been unable to sign into the OneNote Web Clipper User impact: Users may have been unable to sign into the OneNote Web Clipper. More info: Users may have received an error when attempting to sign into the OneNote Web Clipper. Final status: We've completed the deployment of the fix, and service monitoring indicates that the impact has now been resolved. Scope of impact: Your organization was affected by this event, and any users attempting to sign in to OneNote Web Clipper were impacted. Start time: Friday, July 24, 2026, at 8:06 AM UTC End time: Thursday, August 6, 2026, at 10:20 AM UTC Root cause: A recent maintenance update intended to remove unnecessary components from the service inadvertently removed a required authentication component, resulting in impact. Next steps: - We're reviewing our service maintenance procedures and validation processes to help prevent this problem from happening again. This is the final update for the event.

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've completed the deployment of our fix to the majority of the affected environments and anticipate that most users will no longer be affected by the issue. We expect deployment to complete in the remaining affected infrastructure by our next scheduled update. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper are impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Thursday, August 6, 2026, at 12:30 PM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've completed validations on the new fix and have initiated its deployment. We're monitoring as it progresses to establish a completion timeline. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper are impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Thursday, August 6, 2026, at 10:30 AM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've completed the deployment of our fix to our internal testing environment; however, the fix did not resolve the issue as expected. We've prepared another fix which is being deployed to our testing environment. Once complete, we'll perform validations and confirm if we see impact remediation, after which we'll confirm a timeline for deployment to the affected environment. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper are impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Thursday, August 6, 2026, at 6:30 AM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've confirmed that the deployment is progressing as expected and anticipate sharing a completion timeline by our next scheduled update. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper are impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Wednesday, August 5, 2026, at 9:30 PM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've identified that the deployment of the fix is taking longer than initially anticipated, but we're monitoring its progress closely to ensure the deployment completes without encountering any complications. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper are impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Wednesday, August 5, 2026, at 2:00 PM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've completed creating the code fix, and we've initiated deployment to the imapcted environment. We expect the deployment will be complete and the issue resolved by our next scheduled update. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper are impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Wednesday, August 5, 2026, at 3:30 AM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We've identified that a recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication HTML, preventing users from signing into the OneNote Web Clipper. We're creating a code fix that will add this authentication HTML back into the service and remediate impact. Scope of impact: Your organization is affected by this event, and any users attempting to sign into the OneNote Web Clipper is impacted. This information may be updated as our investigation continues. Root cause: A recent maintenance action meant to remove unneeded code from the service has mistakenly removed the authentication html, preventing users from signing into the OneNote Web Clipper. Next update by: Wednesday, August 5, 2026, at 1:00 AM UTC

Title: Users may be unable to sign into the OneNote Web Clipper User impact: Users may be unable to sign into the OneNote Web Clipper. More info: Users may receive an error when attempting to sign into the OneNote Web Clipper. Current status: We're investigating a potential issue with the OneNote Web Clipper and checking for impact to your organization. We'll provide an update within 30 minutes.