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How can I build an AI chat agent that will take a natural language question and search my company's Teams posts?

Lynne Calligaro 0 Reputation points
2026-06-09T20:24:39.2733333+00:00

My company uses MS Teams and we have a lot of stored information in our posts. Unfortunately, the information easily gets lost. I would like to have a "chat bot" where a user can ask a question (e.g., "I'm looking for instructions on what to do when Netbird is down", the bot will search all the Teams posts and provide the best answer. Teams channel restrictions should be respected, so that the bot will not search channels that the user is not a member of. There is no need to search other internal documentation or external sites. Just Teams. Is this something that can be done in Copilot Studio, or Microsoft 365 Copilot?

Microsoft Teams | Microsoft Teams for business | Teams and channels | Manage a team or channel
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  1. Sophie N 15,640 Reputation points Microsoft External Staff Moderator
    2026-06-11T00:56:36.0466667+00:00

    Dear @Lynne Calligaro,

    I would be happy to assist you with this. The short answer is yes, this can absolutely be done, and Microsoft 365 Copilot is the ideal solution to fulfill your requirements out of the box.

    Here is how both platforms handle your scenario and the recommended path forward:

    Option 1: Microsoft 365 Copilot

    Microsoft 365 Copilot Chat natively provides exactly what you are looking for without needing any custom code or complex backend configuration.

    Option 2: Copilot Studio

    If you want to build a highly customized, standalone "chat bot" interface rather than using the generic Copilot chat, you can use Copilot Studio.  Please refer to this: Quickstart: Create a classic agent and publish it to Microsoft Teams - Microsoft Copilot Studio | M…

    • How it works: You can use the Agent Builder experience inside Microsoft 365 Copilot to create a custom agent, selecting Teams channels as a designated knowledge source.
    • Security: Like Microsoft 365 Copilot, custom agents built within the M365 ecosystem automatically leverage user-delegated permissions via Microsoft Graph, ensuring users only get answers from channels they have access to.

    I recommend leveraging Microsoft 365 Copilot directly. It requires zero development time, immediately solves your problem of information getting "lost" in posts, and guarantees that channel restrictions are perfectly respected out of the box.

    For more details on how Copilot handles channel data, you can refer to the official How to use Microsoft 365 Copilot in Teams chats and channels | Microsoft Support

    Please let me know if you need any further details.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

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  2. AI answer

    2026-06-09T20:24:58.8033333+00:00

    Yes, this scenario is supported, and there are two main approaches that align with Microsoft 365 security and Teams permissions.

    1. Use a Channel Agent in Microsoft Teams
    • A Channel Agent is a Copilot-based agent that lives in a specific Teams channel.
    • It uses the channel’s SharePoint files, channel messages, and meetings as grounding information.
    • When answering, it checks the permissions of the requesting user and won’t use:
      • Files the user doesn’t have access to
      • Files whose sensitivity labels prevent extraction
      • Files with DLP policies that block AI usage
    • If the agent can’t verify that everyone in a chat/meeting has access to the underlying content, it asks the requester before sharing the response with the group.
    • It respects Teams information barriers and sensitivity labels (labels are indicated visually but their controls don’t automatically apply to the generated output).

    For your scenario:

    • Create a Channel Agent in each key Teams channel where important instructions are stored.
    • Users can then ask natural language questions in that channel (for example, “What do we do when Netbird is down?”), and the agent will answer based on that channel’s content, respecting membership and permissions.
    • Note: Only one Channel Agent is supported per channel, and private channels and external users are not currently supported.
    1. Use Microsoft 365 Copilot / Copilot Chat (search across Teams content)
    • Microsoft 365 Copilot and Copilot Chat support natural language queries and can search across Microsoft 365 content, including Teams chats and meetings.
    • Copilot Search can answer questions like “show me emails from John about Q4 forecasting” or “where is the spreadsheet that breaks down marketing ROI by region?” and returns results from emails, files, chats, meetings, and more.
    • Copilot Answers are AI-generated responses grounded in Microsoft 365 data and, optionally, the web, while preserving Microsoft 365 permissions.
    • This gives a user a single Copilot entry point (for example, in the Microsoft 365 Copilot app or Teams) to ask questions in natural language and get synthesized answers from Teams posts and other Microsoft 365 content the user is allowed to see.
    1. Build a custom agent or app using Copilot Studio and the Copilot Chat API
    • Copilot Studio can be used to create agents that leverage Microsoft 365 Copilot capabilities.
    • The Microsoft 365 Copilot Chat API allows a custom solution to:
      • Send natural language prompts
      • Receive answers grounded in enterprise search (Teams, SharePoint, OneDrive, email, etc.) and optionally the web
      • Rely on Microsoft 365’s built-in security and compliance so that users only see content they have access to.
    • A custom Teams app or bot can call the Chat API and constrain prompts so that the agent focuses on Teams conversations and related content. Permissions and access control are enforced by Microsoft 365, so the bot won’t surface content from Teams a user is not a member of.

    Summary of options

    • “Out-of-the-box” channel-centric experience: Use Channel Agents in Teams channels where knowledge lives.
    • Tenant-wide search experience: Use Microsoft 365 Copilot / Copilot Chat to query across Teams and other Microsoft 365 content in natural language.
    • Custom, developer-centric solution: Use Copilot Studio plus the Microsoft 365 Copilot Chat API to build a Teams bot that queries Microsoft 365 data (including Teams) while automatically respecting user permissions.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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