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...

Webinar updates for Teams webinars.

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Webinar meeting settings are getting an update with two new settings for the lobby. These are "Allow registered users to bypass" and "Reject users who cannot bypass the lobby". Both options are only available for Webinars. These options have been rolling out for some time already, and should be available for all by the end of August. This feature is associated with roadmap item 125881


Another welcomed feature for webinars is the new capability to automatically publish a recoding and updating participants with a link to view it. This allows an organizer to pre-approve a meeting to be published after the recording has been completed. There are no technical documents on this yet, but expect this feature to be controlled by the "CsTeamsEventsPolicy" settings. This feature is listed as roadmap item 123052. According to the message center, this should be rolling out starting in September