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...

Microsoft 365 Copilot Audio Overviews: A New Way to Engage with your Content

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Audio overviews powered by Copilot

I think we all knew this some time ago, the speed at which new AI related news and updates are coming will only accelerate. Here is yet another change in how we can and will interact with our documents in Microsoft 365 Office. Associated with no less than 5 roadmap Items, Microsoft is releasing a new user-centric feature: audio overviews powered by Copilot. The rollout started in May and is probably on it's way to your users as you read this post. 

What does it do:

With a simple prompt in the Copilot chat pane, users can generate an audio overview, a narrated summary or a dynamic dialogue between two virtual hosts like a discussion on a podcast (Microsoft's description, not mine). These hosts don’t just read content; they analyze, connect ideas, and even banter, making the experience engaging and digestible.

Users be able to customize the experience with the following choices:
  • Choose between one or two speakers
  • Adjust the tone (concise, informative, or playful)
  • Set the length (short, medium, or long)
The feature will be integrated into tools you already use: Word, Teams, OneDrive, and Copilot Notebooks, making it accessible wherever you work.

Timeline

As I mentioned, this updated is related to 5 separate roadmap items (487423, 478649, 485747, 487854 and 490051), and will probably not be implemented all at once. My understanding is that the first features have stared rolling out already, but it will not be completed until the Late June or July. According to the message center, there will be three waves:
  • May 2025: Available in English for Word (web & desktop), OneDrive (web), and Copilot Notebooks (web)
  • June 2025: Expands to Teams (desktop & mobile) and OneDrive (mobile)
  • June 2025: Customization options for audio overviews arrive in Word
You can read more about all of this in detail in this newsletter.

As with many of these features, they will light up automatically for users without any admin actions required. But the feature does require a Copilot license. I do recommend updating your training material and maybe share some news internally to your users, so they know how it works and how it can help them.