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...

Orgwide custom background coming to Microsoft Teams

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Custom backgrounds have been available for Microsoft Teams for some time now, but managing them from an organizational point of view has not been easy. The feature is expected to be rolling out in preview in the April-May time frame, and will hopefully reach GA by the end of July.

Mind you, the feature requires the "Advanced Communications license" when the feature hits GA. If you roll out this feature during preview, the images will be unavailable for users without the license one the preview ends.