Recent Discussions
File Uploads Not Passed to Custom Engine Agent in Microsoft 365 Copilot Chat
Hi all, I'm working with a custom agent built in Copilot Studio (full authoring experience — topics, knowledge sources, agent flows) published to both the Microsoft Teams channel and the Microsoft 365 channel. I've noticed a significant UX discrepancy when it comes to file and image attachments, and I want to confirm my understanding and check whether any workaround or roadmap item exists. What works: ✅ File/image uploads work as expected in the Copilot Studio test pane ✅ File/image uploads work in Teams chat when interacting with the agent What doesn't work: ❌ File/image uploads do not reach the agent when interacting via the Microsoft 365 Copilot app (both the desktop app and the web experience at microsoft365.com) The UX problem: The M365 Copilot app presents a "+" button in the chat input area with options including "Upload" and "Take screenshot." Users naturally assume these options work. The file even appears as an attachment in the sent message — but the agent never receives it. There's no warning, error, or indication to the user that the attachment was silently dropped. This creates a misleading experience, particularly for end users who have no visibility into the channel behavior differences. What I've found so far: I'm aware this is documented as a known issue for custom engine agents in the Microsoft 365 Copilot Extensibility Known Issues page: "File attachments — Users can't upload files in agent chats and the agent can't return files for download." I also found a related GitHub issue (OfficeDev/microsoft-365-agents-toolkit #15325) where a Microsoft team member confirmed this is a "Copilot platform shortage" — not an Agents Toolkit issue — with no published ETA. My questions for the community and any Microsoft product team members: Is there any currently supported workaround to enable file/image input for a Copilot Studio agent running in the M365 Copilot app (desktop or web)? For example, any manifest configuration, agent settings, or alternate approach? Is this limitation being actively worked on? Is there a roadmap item or Microsoft 365 feature ID that can be tracked for when file attachment support is extended to custom engine agents in the M365 Copilot chat experience? Is the UI behavior (showing upload options that don't work) being addressed separately? Even if full file processing isn't ready, a visible warning or disabled state in the UI would significantly reduce user confusion. Any insight from others who have hit this — or from Microsoft PMs — is appreciated. Happy to share more configuration details if helpful. Thanks! BrianBest Practices for Copilot Studio Environment Strategy and Application Lifecycle Management (ALM)
As organizations increasingly adopt Microsoft Copilot Studio to build intelligent copilots, virtual assistants, and AI-powered business solutions, establishing a robust environment strategy and Application Lifecycle Management (ALM) framework becomes critical. While creating copilots is relatively straightforward, managing them across development, testing, and production environments requires careful planning to ensure scalability, security, governance, and operational excellence. https://dellenny.com/best-practices-for-copilot-studio-environment-strategy-and-application-lifecycle-management-alm/
Copilot Chat missing in Outlook Web and Outlook Classic
Hello, since recently we are experiencing a tenant wide issue with Microsoft Copilot Chat in Outlook. Environment: Microsoft 365 Business Premium Microsoft 365 Copilot Chat enabled Copilot Chat is pinned for all users via admin settings Copilot Chat works in other Microsoft 365 apps (e.g. Word) Copilot Chat is missing in Outlook Web (OWA) and Outlook Classic for all users in the tenant Key details: No recent admin, policy, or licensing changes were made Copilot Chat does not appear in OWA, which suggests a backend or service side issue The behavior is consistent for all users Questions: Is anyone else seeing Microsoft 365 Copilot Chat disappear from Outlook Web or Outlook Classic tenant wide? Has Microsoft changed the availability or scope of Copilot Chat in Outlook recently? Are there known dependencies or rollout changes that affect Copilot Chat visibility in Outlook specifically? Any confirmation from other tenants or additional technical insight would be helpful.Copilot Studio Preview : MCP Agent works in Teams but not in Microsoft 365 Copilot Chat
I’m currently testing the new preview version of Copilot Studio and I ran into a behavior I’d like to validate with the community. I created a custom Copilot agent using the new interface, connected to a Microsoft Learn MCP server (for retrieving official documentation), and deployed it across both: - Microsoft Teams - Microsoft 365 Copilot (Copilot Chat) Configuration-wise, everything seems correctly set up: - Agent published - Channel enabled for Teams and Microsoft 365 Copilot - Permissions and access configured - MCP tool working properly Here is the key point: - In Microsoft Teams: The agent works perfectly. It correctly calls the MCP server, retrieves Microsoft Learn documentation, and returns accurate responses. - In Microsoft 365 Copilot Chat: The same agent does not work at all. No MCP call is triggered, and no response is generated from the agent. Instead, Copilot returns the following message: "Sorry, I am not able to find a related topic. Can you rephrase and try again?" Even with: - Explicit invocation using @AgentName - Very simple prompts - Minimal instructions - Added knowledge sources (for testing) The behavior remains the same. At this point, it looks like: - The agent is accessible and deployed - But it is not actually executed by the Microsoft 365 Copilot runtime Has anyone experienced the same behavior with agents in the new Copilot Studio preview, especially when using MCP tools? Is there any known limitation or requirement for agents to be properly executed inside Microsoft 365 Copilot Chat (compared to Teams)? Thanks in advance for your feedback.Deleted Copilot Chats and Temporary Chat: What End Users Should Know
I published a short video for end users who are asking a practical Copilot question: Can employers see deleted Copilot chats? The question usually starts when users see the “Permanently delete chat?” warning in Copilot. That warning can be easy to misunderstand, especially in work or school accounts where workplace policies may still apply. The video explains this in plain language, including: What users should understand before deleting Copilot chats Why Temporary Chat needs a closer look Why deleted from your view may not mean the same thing in a workplace account What users should avoid typing into Copilot at work Watch the video here: https://youtu.be/ND9Cdp5h9rs?si=FyBkInRHpVgc_x1I Supporting article: https://traccreations4e.com/can-employers-see-deleted-copilot-chats/ Related deletion guide: https://traccreations4e.com/copilot-delete-chat-history/ traccreations4e-p26 6/8/2026
Can Microsoft Frontier Program Copilot Cowork Agent Delegate Tasks to Other Copilot Agents?
Hi everyone, I'm currently exploring the capabilities of Copilot Cowork that is available through the Microsoft Frontier Program, and I'm trying to understand whether a multi-agent orchestration pattern is officially supported. My Use Case I want users to interact with only a single, central Copilot Cowork agent. For example: User asks the Cowork agent to create or update a Jira ticket. Instead of Cowork handling the Jira operation directly, it delegates or hands off the task to a dedicated Jira Copilot Agent. The Jira agent performs the required actions and returns the result. The Cowork agent then presents the final response back to the user. Similarly, I would like to have specialized agents for: Jira ServiceNow Knowledge Management HR Operations Internal IT Support Other business systems The goal is to have Cowork act as an intelligent orchestrator/router while specialized agents handle domain-specific operations. Questions Is agent-to-agent delegation or handoff officially supported in Copilot Cowork (Frontier Program)? Can Cowork directly invoke another Copilot Studio agent? Is there any built-in multi-agent orchestration framework available today? If this is supported, what is the recommended architecture and implementation process? If it is not currently supported, what workarounds are people using? Power Automate? Agent as a tool/action? Custom APIs? Azure AI Foundry / Azure AI Agent Service? Other approaches? I'm specifically looking for guidance from anyone who has worked with Copilot Cowork in the Frontier Program, since the documentation and public examples seem to focus mostly on standalone agents. Any insights, architecture diagrams, documentation links, or real-world experiences would be greatly appreciated. Thanks!Microsoft Introduces Scout: The Always-On Personal AI Agent
Microsoft has officially unveiled Microsoft Scout, a new AI-powered personal agent designed to work continuously in the background and help users manage tasks, schedules, communications, and workflows across the Microsoft 365 ecosystem. Announced on June 2, 2026, Scout represents Microsoft’s latest step toward autonomous AI agents that move beyond traditional chatbot interactions and actively help users get work done. https://dellenny.com/microsoft-introduces-scout-the-always-on-personal-ai-agent-that-could-redefine-workplace-productivity/Learning Agent by Microsoft: The Future of Personalized AI-Powered Employee Upskilling Has Arrived
In today’s rapidly evolving workplace, one challenge continues to stand out for organizations across industries: keeping employee skills aligned with changing business needs. Traditional training programs often struggle to deliver relevant learning experiences at the right time, leaving employees overwhelmed with generic courses that may not match their career goals or daily responsibilities. https://dellenny.com/learning-agent-by-microsoft-the-future-of-personalized-ai-powered-employee-upskilling-has-arrived/
Copilot Studio Agent resetting when processing PDF drawings (300MB+) via Claude 4.6 Sonnet
Hello everyone, I am building an automated drawing review verification agent inside Copilot Studio using the Claude 4.6 Sonnet model. The goal of the agent is to read a comments package (20-40MB) and verify if those design comments were successfully incorporated into a milestone drawing set (300MB–400MB). When testing this workflow natively within Claude, the model handles the token load perfectly and returns an accurate compliance/incorporation summary within approximately 20 minutes. However, when running the exact same agent setup within Copilot Studio, the conversational canvas repeatedly crashes and resets the session. I suspect I am hitting the 100-second synchronous conversational timeout or overloading the chat runtime payload limits due to the massive file sizes. Because of corporate compliance policies, this agent must live within our Microsoft tenant so it can be scaled across our operations team via Microsoft 365. How can I fix Copilot Studio to have its performance match Claude's, as it is utilizing the same agent model. I am fairly new to working with AI but am willing explore any avenue as if I can figure out a solution this will help save a lot of time for colleagues. Thanks in advance for any insights!Designing Multi-Agent Systems in Copilot Studio
Modern organizations rarely solve complex business problems with a single AI assistant. Customer support, IT operations, sales, HR, and analytics teams all have different goals, data sources, and workflows. This is where multi-agent systems become valuable. Instead of relying on one large, general-purpose agent, a multi-agent architecture uses several specialized agents that collaborate to complete tasks efficiently. https://dellenny.com/designing-multi-agent-systems-in-copilot-studio/Copilot Studio Pricing Explained for Enterprises: Licensing, Costs, and ROI in 2026
As enterprises accelerate their AI adoption strategies, Microsoft Copilot Studio has emerged as one of the most powerful platforms for building custom AI assistants, automating business processes, and creating intelligent customer experiences. Whether you’re developing internal employee copilots, customer support agents, or workflow automation tools, Copilot Studio provides a flexible environment to create AI-powered solutions tailored to your business needs. https://dellenny.com/copilot-studio-pricing-explained-for-enterprises-licensing-costs-and-roi-in-2026/Copilot studio Agent Dataverse index issues.
We are testing a Copilot Studio agent and would like to test/use Dataverse as a data source. At a very basic level, the Dataverse table has been created with the following columns: Category Question and topic Answer to customer The challenge is that our Copilot Studio agent cannot find any relevant answers or data from our Dataverse table. Under ‘Knowledge’, our Dataverse table shows a status of: ‘Unknown’. It has remained in this state for several days. Removing and re-adding the knowledge source does not help. What are we doing wrong?Platform Issue: Agent-Level MCP Initialization Blocks All Topics for Users Without Connection Access
I’m writing to report a significant platform behavior issue we’ve encountered with MCP (Model Context Protocol) server initialization in Copilot Studio that is severely impacting end-user experience. ENVIRONMENT • Platform: Microsoft Copilot Studio • Deployment Channel: Microsoft Teams • Agent Type: Custom Agent (EdiSENSE DEV) • MCP Server: Atlassian Confluence-Jira MCP • Affected Users: Users without Confluence/Jira access entitlements PROBLEM SUMMARY When an MCP server is registered at the agent level in Copilot Studio, it appears to be initialized globally before any topic routing occurs. If a user’s MCP connection is in a Not Connected state — even if their query has absolutely nothing to do with that MCP server - the agent gets stuck in an authentication loop, repeatedly prompting: “Let’s get you connected first. Open connection manager to verify your credentials. Once the connection is ready, retry your request.” The user is shown Retry / Cancel buttons, and the agent never proceeds to route the query to the appropriate topic. STEPS TO REPRODUCE 1. Register an MCP server (e.g., Confluence-Jira) at the agent level in Copilot Studio 2. Deploy the agent to Microsoft Teams 3. Log in as a user who does NOT have access to the MCP-connected service (e.g., no Confluence license) 4. Ask the agent any question completely unrelated to the MCP service 5. Observe: Agent does not route to any topic. Instead, it loops on MCP connection prompt indefinitely EXPECTED BEHAVIOR • MCP initialization failure for a specific service should NOT block unrelated topic routing • The agent should gracefully degrade - if an MCP connection is unavailable for a user, it should skip that MCP and continue routing the query to relevant topics • There should be a way to scope MCP connections to specific topics, or at minimum, mark them as optional/non-blocking ACTUAL BEHAVIOR • Agent-level MCP initialization blocks the entire conversation flow • Users without MCP access cannot use ANY functionality of the agent, even features completely unrelated to the MCP service • There is no graceful fallback or bypass mechanism available to agent builders BUSINESS IMPACT This is a critical gap for enterprise deployments where: • Not all users have access to every integrated service • Agents serve a broad user base with varying entitlements • Admins have no control over MCP initialization order or failure handling In our case, a large portion of our Teams users are completely locked out of the agent’s core functionality simply because they don’t have a Confluence license - even though they never intended to use Confluence-related features. FEATURE REQUEST / SUGGESTED RESOLUTION 1. Allow MCP servers to be scoped at the topic level, not just agent level 2. Introduce an optional flag for MCP connections so initialization failure is non-blocking 3. Provide agent builders with a connection status condition node in the topic flow to handle MCP failures gracefully 4. At minimum, allow the Cancel button in the auth prompt to fall through to normal topic routing I’d appreciate any guidance on whether there is a current workaround, or if this is a known limitation on the roadmap for resolution. Thank you for your time and support.Copilot Connectors >Azure DevOps Work Items >Add Property
Hi I have setup the Azure DevOps Work Item connector and all is working OOTB. However when I try to 'Add a new source Property' and add for example 'TargetDate' when I publish the schema change it errors with: Schema failed to publish with error [Removal existing property is not allowed.] I havent removed anything just added. Anyone else experienced this? Many thanks
PowerShell: Export Microsoft 365 Copilot Agent Inventory and Availability Assignments
Hi everyone, I needed a way to export Microsoft 365 Copilot agent inventory and availability assignments from the Microsoft 365 Admin Center, but couldn't find a built-in export option. After investigating the admin portal's network traffic, I built a PowerShell script that uses the same internal API consumed by the Microsoft 365 Admin Center to export all Copilot agents to CSV. ### Features - Exports all Microsoft 365 Copilot agents - Automatically follows pagination (`nextLink`) - Exports: - Agent Name - App ID - Title ID - Publisher - Created By - Availability Settings - Allowed Users / Groups - Assignment Information - Deployment Information - Version Information - Timestamps - CSV output ### Tested The script has been tested against a tenant containing 482 Copilot agents and successfully exported the complete inventory. ### GitHub https://github.com/gwestergren/M365-Copilot-Agent-Inventory ### Notes - Uses an authenticated browser session cookie from the Microsoft 365 Admin Center. - Uses the same internal API currently consumed by the admin portal. - This is an undocumented API and Microsoft may change it at any time. Feedback, testing results, and improvements are welcome. Here are some screen shots: output to csv Successful run of the script
Copilot Down - June 1st
I used Copilot this morning and everything was working smoothly. All of a sudden when I open the app on Windows I get this message "Couldn't load the app. Wait a bit, then try again." I tried using the version on Edge but I get a "503 Service Unavailable Error." I tried restarting my laptop and I get the same error. Checked on my phone app and indeed, it confirmed the service is down. Does anyone know when this will be resolved?Has anyone seen Excel workbooks become corrupt after using M365 Copilot to summarize data?
We’ve run into an issue twice where a user opened an existing Excel sales workbook, used Microsoft 365 Copilot in Excel to summarize/analyze the data, received the response successfully, and then later could no longer open the original workbook because Excel reported it as corrupt. Internally, this has been reported as happening on some files but not all, and it has occurred twice so far. I’m trying to determine whether this is: a known issue with Copilot in Excel a workbook-specific problem related to file location/sync/versioning or something tied to workbook structure I did find public reports of related Excel Copilot issues — including Copilot crashing in Excel, failures that seem specific to certain workbooks, and Copilot-created Excel files being reported as invalid/corrupt — but I have not yet found a clear Microsoft-hosted thread describing this exact scenario with the original existing workbook becoming corrupt after summarization. If anyone has seen this, I’d appreciate any insight on: whether Microsoft has acknowledged a known issue whether this points to specific workbook features/structures whether there are logs or diagnostics that help isolate root cause whether there are best practices to reduce the risk
Succession Planning in Microsoft 365?
Hi everyone. I'm looking to implement some of our core HR practices like performance management, talent reviews, natively inside our Microsoft 365. The one that challenges me the most currently is succession planning. Do you think I can set something up where managers can evaluate succession candidates through Copilot, build succession plans on SharePoint, etc? Does anyone have any experience with this? I am also open to suggestions for any succession planning apps or software if doing it manually could be too complicated. However in that case, it would have to be a pretty native integration.
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