External Sharing in SharePoint and OneDrive is changing: What You Need to Know

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In an ongoing effort to create a more secure environment by default, Microsoft is introducing an important security update that will affect how external users access content shared through SharePoint and OneDrive. Starting July 1, 2025, any links shared with external users before your organization enabled Microsoft Entra B2B integration will no longer work. This change applies to all organizations that have already enabled or will enable SharePoint and OneDrive integration with Microsoft Entra B2B (Most organizations I have looked into so far). External users trying to use old links will see an error message saying the organization has updated its guest access settings. To regain access, the content must be reshared. Highlights of how the change affects organizations who have enabled B2B: All external sharing will require guest registration. External users must be added as guests in your Microsoft Entra directory. Access will be managed through Microsoft Entra B2B Invitation Manager. T...

New Microsoft Loop workspace policy coming: Require Existing Microsoft 365 Group for New Loop workspaces

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Microsoft is improving the security of Loop workspaces by giving admins the capability to connect new workspaces into existing Microsoft 365 Groups. This change will allow end-users to choose existing groups for managing new workspaces, providing a structured environment for collaboration. While this integration supports governance, it may challenge scenarios like automatic aggregation of Teams meeting content into a Loop workspace or creating short-term project workspaces. I recommend reading the following post on how aggregating teams meeting into loop workspaces works.

If organizations have separate workflows for creating and govern Microsoft 365 groups, now would be the time to look into them and see if they need to be updated to include Loop Workspaces (or allowing to add workspaces)

This update is currently planned to be complete by the end of April 2025 but keep an eye on Microsoft 365 Roadmap ID 422725 for changes.