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...

Restore a single Lync server from CsConfiguration Backup

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In my previous video, I restored the entire CsConfiguration in order to recreate the correct SimpleURLs. In the following video I am showing how you may restore the configuration to a single Lync server, which has been taken offline. The backup was with the Lync 2013 backup script v3.5

The video has been trimmed to about 8 minutes long, and shows a restore of in my lab. The trimming has been done to shorten the time I had to wait through bootstrapper. It has no sound, but the CC will explain what's going on.


The important giveaways from this movie should be:
  • Permissions required to run Lync commands
  • Things to look out for
    • Use -LocalStore when targeting a single computer
  • A quick troubleshooting (where to find the logs)
As always, you can find the script right here.