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    1. Microsoft 365
    2. Teams
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      Build apps for Microsoft Teams

      Integrate your apps and services with Teams, the collaboration platform for the modern workplace, and reach millions of users.

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      Get a Teams development environment in seconds

      Join the Microsoft 365 Developer Program today to get a new instant sandbox with Teams sample data.

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    Plan your app

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    Build apps for Teams

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    Design your app

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    Use the Teams API to access data in Microsoft Graph​

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    Publish your app

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    Build apps with the Teams Toolkit for Visual Studio and Visual Studio Code

    Use these toolkits to streamline your Teams app development and quickly create, debug and deploy directly from Visual Studio and Visual Studio Code.

    Get the toolkit for Visual Studio Get the toolkit for Visual Studio Code
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    Get started with Teams app templates

    Check out our inventory of ready-to-use app templates. Accelerate custom Teams app development with these production-ready templates and customize as you see fit for your org.

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    Build solutions with Teams app development resources

    Find solutions, scenarios, best practices, and sample code to help you maximize business value as you build apps for Microsoft Teams.

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    Join the Microsoft 365 Developer Program

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

    • A free Microsoft 365 E5 developer subscription, preconfigured with sample data, including Teams data
    • Microsoft Graph users, mail, and calendar, Teams, and SharePoint Framework sample data packs
    • Access to a community of Microsoft 365 experts
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    Latest blogs

    • Microsoft Teams development: All you need to know

      Microsoft Teams is the ultimate messaging app for your organization—a workspace for real-time collaboration, communication, meetings, and fi...

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    • Developing real-time collaborative apps with Azure, Microsoft 365, Pow...

      Collaborative apps – apps built for a collaboration platform like Microsoft Teams, Slack, Google Workspace, etc. – are apps with collaborati...

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    • Guidance for implementing partner offerings for Viva Connections with ...

      We are excited to announce new guidance on how to build Microsoft Viva Connections extensibility with Adaptive Card Extensions (ACEs), which...

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    • Announcing Teams JS SDK v2 in public preview: Extend Teams apps across...

      We are excited to share Microsoft Teams JS SDK v2 is now in public preview, which unlocks the ability for developers to begin extending Micr...

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    Latest videos

    • Automatically recognize your team champions 🏆 with CLI for Microsoft ...

      In this 12-minute demo, Albert-Jan Schot shows how with existing cmdlets in CLI, query criteria and a business objective (to identify champi...

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    • Microsoft Power Apps community call – November 2021

      Topics covered in this month’s community call include demos Power Apps Christmas Calendar Games (Advent calendar with engaging games) - Cr...

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    • Office Add-ins community call – November 2021

      This month's community call features a customer presentation - CodeTwo Outlook Add-in for email signature management - (email signature mana...

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    • Viva Connections & SharePoint Framework Community call – 18th of Novem...

      Viva Connections & SharePoint community call on November 18. Demos on SPFx Extension for Copying and Moving List Items, Viva Connections – ...

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    Teams has 900+ apps.

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