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Microsoft Extends DLP Policy for Copilot Protection to All Storage Locations
Microsoft has enhanced the DLP policy for Copilot to cover Office files held in any storage location instead of only Microsoft 365 locations like SharePoint Online and OneDrive for Business. The change is made in the Office augmentation loop, a little-known internal component that coordinates use of connected experiences by apps. Extending the DLP policy to cover all locations makes perfect sense. https://office365itpros.com/2026/02/24/dlp-policy-for-copilot-storage/
Publish an Excel Add-in by just submitting the add-in manifest to Microsoft Marketplace
I am working on Excel Add-in built using the react template. We are planning to host the add-in code on our domain and update the manifest to point to the URL for our domain. Can I just submit the add-in manifest to Microsoft to publish it in Microsoft Marketplace?Microsoft Takes Aim at ChatGPT
Microsoft would very much like Microsoft 365 tenants to use Copilot instead of ChatGPT. A recent comparison between Copilot and ChatGPT outlines some areas that Microsoft thinks are important when deciding which AI tool to use. Microsoft has a point because Copilot is embedded into Microsoft 365 whereas ChatGPT is more of an add-on. The competition for hearts and minds is very intense in the AI space. https://office365itpros.com/2026/02/20/copilot-and-chatgpt/Using Dev Proxy with the Microsoft Graph PowerShell SDK
Dev Proxy is a Microsoft tool built to help developers figure out the most effective way of using Microsoft Graph API requests. On the surface, Dev Proxy doesn’t seem like a tool that would interest people who use the Microsoft Graph PowerShell SDK to write scripts for Microsoft 365. But all tools have some use, and Dev Proxy can help. https://office365itpros.com/2026/02/19/dev-proxy-graph-sdk/How to Use Scoped Graph Permissions to Access SharePoint Files
Scoped permissions grant apps granular access to files and folders in SharePoint Online and OneDrive for Business sites using the Files.SelectedOperations.Selected Graph permission. The permission allows apps to access specific files or all the files in a folder. It’s a great way to make sure that apps don’t have unfettered access to confidential documents. Not that any app would try to have that kind of access… https://office365itpros.com/2026/02/18/scoped-access-files-and-folders/Modern SharePoint Architecture: Best Practices for Scalable Intranets in 2026
In 2026, SharePoint has evolved from being a basic collaboration portal into the backbone of digitally-connected organizations. With businesses demanding agility, security, and personalized employee experiences, the architecture of your SharePoint intranet isn’t just “plumbing” it’s a strategic asset that shapes how people work, share knowledge, and innovate. In this guide, we’ll explore modern SharePoint architecture principles, practical best practices, and technical steps that will ensure your intranet scales with your organization securely and intelligently. https://dellenny.com/modern-sharepoint-architecture-best-practices-for-scalable-intranets-in-2026/Code Error Allowed Copilot Chat to Expose Confidential Information
A code error allowed Copilot Chat to expose confidential email. Microsoft is fixing the problem, but it’s a reminder of how AI can expose information of Microsoft 365 tenants don’t use available features to restrict AI access. Those features need to be configured and deployed, but that doesn’t take much effort. It’s better than users complaining when Copilot exposes their most secret thoughts. https://office365itpros.com/2026/02/13/dlp-policy-for-copilot-bug/New Outlook Gets Smarter DLP
The news that the new Outlook client will support custom oversharing dialogs for DLP policies might not seem very interesting, but it provoked me into looking more closely into how to build and deploy custom oversharing dialogs. All it takes is some well-structured JSON and an update to DLP rules, and the classic and Monarch Outlook clients should display custom tenant instructions to anyone who violates DLP rules. https://office365itpros.com/2026/02/12/custom-oversharing-dialog-dlp/How to Deactivate an Entra ID Application
This article explores how to deactivate applications (aka disable apps) in Entra ID. Everything is done through PowerShell and the Microsoft Graph PowerShell SDK because the feature isn’t currently available in the Entra admin center. We’ve even included a fully functional example script to show you how the process works. Feel free to fix or enhance our code in GitHub! https://office365itpros.com/2026/02/11/deactivate-application-entra/Maester and UTCM Are Complementary Tools for Microsoft 365 Tenant Management
Since the release of the preview version of the UTCM solution, some have asked if UTCM will replace the Maester tool. The answer is no. The tools are complementary and both are very useful to Microsoft 365 tenant management. Maester is a community-driven reporting tool that highlights inconsistencies between external and Microsoft baselines. UTCM focuses on setting drift that can occur in workload configurations. Both have their own niche. https://office365itpros.com/2026/02/10/maester-and-utcm/
