Status Page

O365 - myDal/SharePoint

2026-02-27	Status	Description
07:51 AM		Title: Some users may be unable to open some SharePoint Online list links through Microsoft Teams on iOS and receive an error User impact: Users may have been unable to open some SharePoint Online list links through Microsoft Teams on iOS and received an error. More info: Specifically, users who attempted to access SharePoint lists through Teams on iOS may have received an access permissions error stating: "Permission required - You do not have permission to open this file." While we were focused on remediation, users on iOS could’ve accessed the affected pages and list links by manually copying the impacted URLs from the Teams chat to open them elsewhere. Additionally, users with access to alternative Microsoft Teams access methods such as the Microsoft Teams desktop client and web app could’ve used these to avoid impact. Final status: Our update containing the fix has completed deploying to the entirety of the affected infrastructure and we’ve confirmed through internal testing that the issue is resolved. Scope of impact: Any users who attempted to access SharePoint lists through links shared on Microsoft Teams while on iOS may have been impacted. Start time: Friday, December 12, 2025, at 3:10 AM UTC End time: Thursday, February 26, 2026, at 1:30 AM UTC Root cause: A latent code issue was affecting the request flow leveraged for SharePoint Online list link access within Microsoft Teams on iOS and resulted in impact. Next steps: - We're investigating further into the latent code issue to better understand how it was introduced and why it wasn't caught prior sooner so that we can prevent impact to SharePoint Online list links through Microsoft Teams on iOS in the future. This is the final update for the event.