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

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...

Welcoming a new colleague in Teams Notifications

A new notification option will start rolling out next month. According to the news posted in the admin center, roadmap feature 57455 will be rolling out in December. It is a new way to recognize new members to Teams, but also another notification setting we need to train users to control if that's what they like. This feature will be on by default, and there are to my knowledge nothing admins have to do or consider. But update your internal documentation and training if you have them.
You will find these settings under the usual notifications section in Teams settings, and your options are as "usual" "Banner and feed", "Show only in feed" and "off".