Microsoft 365 Developer Blog
A developer platform for building collaborative apps for hybrid work
Featured posts
SharePoint Framework (SPFx) roadmap update – August 2026
SPFx 1.24 Beta 3 is now available, React 18 support is coming in 1.24, and a new Copilot Components preview program opens for customers and partners.
Building Agents for Teams: Managing the noise of collaboration
Most of us are familiar with one-to-one agent chats: private, direct interactions where rules are relatively simple. With only you and the agent, each moment ha...
Latest posts
Accessing Outlook items in a user’s archived, shared or delegated mailboxes using Microsoft Graph
We have noticed that a few customers are unsure about the right way to access Outlook messages and contacts in mailboxes other than the signed-in user’s primary mailbox (archive, delegated, or shared mailboxes). For example, some customers use one of the following API URLs to access Outlook items in another mailbox, using the item ID and the /me URL path. https://graph.microsoft.com/v1.0/me/messages/{message_id} https://graph.microsoft.com/v1.0/me/contacts/{contact_id} Note that the item ID corresponds to an item that resides in a mailbox (archive, shared, or delegated) that is different from the signed-in user...
Microsoft Graph .NET SDK updates
It has been a while since the Microsoft Graph SDK team provided an update and customers have been asking us when the next update will be available. It is great to hear that people care! These updates took a longer to deliver than we planned as we made a few bolder steps towards our longer-term plans, and we had a few hiccups along the way.
UI Fabric is evolving into Fluent UI
We've renamed our UI Fabric GitHub repo to Fluent UI. This is step one toward our vision to make the Fluent Design System a true design-to-code system. Fluent UI will directly connect that effort to a broad set of products, through code, specifically the convergence of our most used web engineering frameworks - Fabric and Stardust.
Build contextual UI experiences with Office add-ins
Microsoft is previewing enhancements to Office add-ins that provide two-way messaging between dialog and host page, hiding the task pane, and disabling buttons and menu items.
Announcing Xamarin broker support in MSAL.NET 4.9.0
We are excited to announce that MSAL.NET now supports brokers for both Xamarin iOS and Xamarin Android apps!
Microsoft 365 / SharePoint Community (PnP) – March 2020 update
Microsoft 365 / SharePoint Patterns and Practices (PnP) March 2020 update is out with a summary of the latest guidance, samples, and solutions from Microsoft or from the community for the community. This article is a summary of all the different areas and topics around the Microsoft 365 and SharePoint Dev ecosystem during the past month.
Identity Protection APIs for US Gov: New Availability & Deprecation Notice
Today we’re announcing two new ways for customers in the US Government cloud to get Azure AD Identity Protection data through Microsoft Graph: The riskyUsers API and the riskDetection API.
Build your own SCIM endpoint for streamlined provisioning of your applications
Today we published an overview on how design, build and test your own SCIM endpoint for your application. To learn more, read our Provisioning with SCIM – design, build, and test your SCIM endpoint post on the identity standards blog.
Office 365 CLI v2.7
We've just published a new version of the Office 365 CLI with commands for managing Office 365 tenants and SharePoint Framework projects on any platform.