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    • Photo of woman using Teams on a laptop

      Develop for the Microsoft 365 platform

      Build rich solutions that integrate apps and business processes to enhance productivity in the modern workplace.

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      Build apps for Microsoft Teams

      Extend and customize Teams to create and connect apps and workflows.

      Visit Dev Center
    Start with the Microsoft identity platform
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    Connect to data through Microsoft Graph
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    Extend your solution through Microsoft Teams​
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    Publish your app

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    Get the latest news

    • Breaking changes to the Microsoft Graph connectors API (beta)

      We have made improvements to our API to make it more useful and intuitive to developers. Implementing these improvements requires us to intr...

      View blog
    • Announcing public preview of SharePoint Framework 1.13 – with Viva Con...

      We are excited to announce the availability of public preview of the SharePoint Framework (SPFx) 1.13 - with Microsoft Viva Connections exte...

      View blog
    • Microsoft Graph .NET SDK v4 now generally available with streamlined a...

      New features and improvements simplify building high-quality, efficient and resilient applications accessing Microsoft Graph.

      View blog
    • MSAL for Angular v2 is now available

      This library improves on the existing MSAL Angular v1 library bringing exciting new features to provide a better experience.

      View blog
    • MSAL for React is here!

      The new release of MSAL for React expands the libraries you can use with the Microsoft identity platform to developers using React.

      View blog
    • Announcing upcoming Microsoft Viva Connections public developer previe...

      We are excited to announce an upcoming public preview for building experiences for Viva Connections using SharePoint Framework. We will be r...

      View blog
    • Access Microsoft Graph through a new preview CLI

      We’re excited to bring an alternative to PowerShell  and JMESPath capabilities to you with the preview new command line interface (CLI) for ...

      View blog
    • Raise the bar for your app security – Get Microsoft 365 Certification ...

      As an app publisher, you can work with analysts in the Microsoft 365 App Compliance team to demonstrate that both your application and its s...

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    • Uniper boosts employee productivity using Office Scripts

      Using Office Scripts and Power Automate, I built a script that fully automates a report that used to take me at least one to two hours per m...

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    • Explore new change notification API resources for your Microsoft Teams...

      You can now subscribe to all types of changes (create, update, and delete) to teams, channels, and team membership. You also have the option...

      View blog
    • Manage frontline workers in Microsoft Teams with Tags and Time Clock A...

      Learn about some scenarios where these APIs come in handy and view the code snippets that you can leverage to manage Tags and Time Clock in ...

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    • Updates on the Microsoft 365 platform community calls

      We are adjusting our Microsoft 365 platform community call structure based on the community survey feedback. As part of this change, some ca...

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    Use Power Platform to build low-code solutions

    Streamline business processes and reporting through Power Apps, Power BI, Power Automate, and Power Virtual Agents.

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    Integrate with Office

    Use Office Add-ins with familiar web technologies to extend Word, Excel, PowerPoint, and Outlook on multiple platforms.

    Use Office Scripts in Excel on the web to automate your common tasks.

    Integrate with Office Explore Office Scripts
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    Join the Microsoft 365 Developer Program

    Get a free sandbox, tools, and other resources you need to build solutions for the Microsoft 365 platform, including:

    • A free Microsoft 365 E5 developer subscription
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    Join now

    Featured tools

    Graph Explorer
    Try Microsoft Graph API requests and see sample responses.
    Explore
    Teams UI Kit
    Get core components, scenario-based templates, and best practices for designing Teams apps.
    Explore
    Adaptive Cards
    Create and share rich, interactive UI content in a consistent way.
    Explore
    Script Lab
    Use the Office JavaScript API tool to create Office Add-ins for Excel, Word, or PowerPoint.
    Explore

    Find resources

    • Word Style Checking Add-in Built on Angular 2.0

      View code sample
    • Microsoft Graph Webhooks Sample for Node.js

      This sample NodeJS web application shows how to subscribe to change notifications using webhooks. This sample also supports receiving change...

      View code sample
    • Power Apps Demo Extravaganza 2021 - Sports Stats Tracker

      In this 14-minute citizen developer-focused demo, Todd Baginski and the Canviz team deliver a Power App that allows team statisticians to ca...

      View video
    • Using Microsoft Graph Explorer to make REST API requests

      Microsoft Graph Explorer is a developer tool that lets you conveniently make Microsoft Graph REST API requests and view corresponding respon...

      View video
    • Power Apps Demo Extravaganza 2021 - Number Puzzle

      In this 11-minute citizen developer-focused demo, Krishna Rachakonda shares his automated number shuffling board game built using only Power...

      View video
    • Building SharePoint Framework solutions with Microsoft Teams Toolkit v...

      In this 12-minute developer-focused demo, Vesa Juvonen introduces an alternative to using the SPFx Yeoman Generator for building Teams apps....

      View video
    • Microsoft Graph Change Notifications Sample for ASP.NET Core

      This sample ASP.NET Core web application shows how to subscribe to change notifications using webhooks. This sample also supports receiving ...

      View code sample
    • Outlook add-in on send code sample

      Learn how to check for restricted words in an Outlook email message body, add a recipient to the CC line and check that there is a subject i...

      View code sample
    • Power Apps Demo Extravaganza 2021 - Course Maker Solution

      In this 9-minute citizen developer-focused demo, Rory Neary walks through his course management - Canvas Model driven app that organizes 3...

      View video
    • Building a COVID attestation solution for Microsoft Teams and Viva Con...

      Through this 26-minute developer-focused demo, Julie Turner and Derek Cash-Peterson walks viewers through a personal app that collects infor...

      View video
    • Intune Graph Samples

      This repository of PowerShell sample scripts show how to access Intune service resources. They demonstrate this by making HTTPS RESTful API...

      View code sample
    • Demo - Create .NET console app to work with users in the organization ...

      In this demo, you'll learn how to create a .NET console app and configure the Microsoft Authentication Library (MSAL) to submit requests to ...

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    View more

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