Showing results for Office Add-ins - Microsoft 365 Developer Blog

The unified manifest is a key component of the Microsoft 365 ecosystem providing a single model for distributing and managing Teams apps, Outlook add-ins, as well as Copilot agents which work across Microsoft 365 apps.  We've released it for Outlook, and now it is available for Word, PowerPoint, and Excel.

The Office Add-ins Development Kit for Visual Studio Code is now generally available! After months of public preview, we've gathered invaluable feedback from the community and improved the experience.

Earlier this year, the Office Platform Team announced that Exchange Online legacy tokens are deprecated and will be turned off. This is part of Microsoft’s Secure Future Initiative (SFI) to give organizations the tools they need in the current threat landscape. We’ll begin turning off legacy tokens in February 2025. Publishers and developers are ac...

Developers can leverage the accessibility improvements in PDF export in Word, Excel, and PowerPoint to build more inclusive solutions.

The Office Platform team has been busy working on improvements to the platform since we last reported. This blog covers the new features from the office-js team announced at Ignite 2024.

The Office Add-ins Development Kit is a new development tool to help you set up your environment, create Office Add-ins, and debug the code with a streamlined developer experience in Visual Studio Code.

In April, we announced that Exchange tokens will be turned off by default for all tenants in October 2024. This has been updated and you should have more time to move your Outlook add-ins from Exchange tokens to NAA.

In this blog, the Office Platform team announces the new capabilities and features announced at Build 2024.  

Microsoft now requires Office Add-in developers to prompt users for permission to access their device capabilities. To do this, you can now implement the Device Permission API.

Announcing the public preview of Nested App Authentication (NAA) and that legacy Exchange user identity tokens and callback tokens will be turned off by default for all Exchange Online tenants in October 2024.