Recent Discussions
TeamsTab.ReadWriteSelfForTeam: deleting a tab fails with 400 "appId cannot be null or whitespace"
We have a published Teams app that pins a configurable tab into a team channel via Microsoft Graph and removes it again when the user uninstalls our app from that channel. Creating the tab works. Deleting it always fails with a 400 that looks like an unhandled null-argument exception inside the Graph Teams service rather than a permission problem. I reported this in October 2025 as https://github.com/MicrosoftDocs/msteams-docs/issues/13432, but that is a documentation repository and the issue has had no response, so I am reposting here, as we can still reproduce the issue. We're using a delegated token for the operation. The only tab-related scopes are `TeamsTab.Read.All` (read-only) and `TeamsTab.ReadWriteSelfForTeam`. According to the docs (https://learn.microsoft.com/en-us/graph/api/channel-delete-tabs), `TeamsTab.ReadWriteSelfForTeam` is the **least privileged** delegated permission for the delete, so the token should be ok. What works Creating the tab, with the same delegated user token: POST https://graph.microsoft.com/v1.0/teams/«teamId»/channels/«channelId»/tabs Content-Type: application/json { "displayName": "«AppName»", "email address removed for privacy reasons": "https://graph.microsoft.com/v1.0/appCatalogs/teamsApps/«teamsAppId»", "configuration": { "entityId": "«entityId»", "contentUrl": "https://«ourhost»/teams/tabs/channel/«entityId»", "websiteUrl": "https://«ourhost»/app/tickets?channel=«entityId»", "removeUrl": "https://«ourhost»/teams/remove-tab/«entityId»" } } → `201 Created`. The tab appears in the channel and renders correctly. Listing the tabs afterwards also works and returns our tab together with its `id`: GET https://graph.microsoft.com/v1.0/teams/«teamId»/channels/«channelId»/tabs?$expand=teamsApp Works as well and lists our tab. Might be served by the TeamsTab.Read.All permission. What fails DELETE https://graph.microsoft.com/v1.0/teams/«teamId»/channels/«channelId»/tabs/«tabId» → `400 Bad Request` { "error":{ "code":"BadRequest", "message":"appId cannot be null or whitespace. (Parameter 'appId')", "innerError":{ "date":"2026-07-27T13:45:31", "request-id":"f930c847-0b48-4a46-b17e-f0ee10ff8177", "client-request-id":"f930c847-0b48-4a46-b17e-f0ee10ff8177" } } } (leaving in the error details, maybe that helps diagnosing the issue) appID is not even part of the request, it's probably resolved against the TeamsTab.ReadWriteSelfForTeam permission on your side. Let me know if you need any more details.
CS agent OK in M365 Copilot; Teams chat silent / no Studio session
We are troubleshooting a Copilot Studio agent that works correctly in Microsoft 365 Copilot and in the Copilot Studio test surface, but does not receive inbound activities from Microsoft Teams personal chat. Environment and evidence: - Agent: Copilot Studio agent (custom business assistant) - Copilot Studio agent ID: 88901b10-… (truncated) - Teams/Entra app ID: 7e4a53cc-… (truncated) - Manifest version: 1.0.8 - Channel configuration: Microsoft 365 Copilot + Microsoft Teams - Publish: Succeeded / Channel state: Synchronized - Agent Registry: Available - Authentication: Integrated / Tool credentials: Maker-provided - MCP/custom connector runtime: working (Studio tool test HTTP 200) - Microsoft 365 Copilot routing: working Failure specific to Teams: - Messages in Teams web and desktop appear delivered in the agent personal chat - Agent never replies - Studio monitor has M365 Copilot sessions, but no Teams session for those timestamps - Teams Admin Center Manage apps returns 0 results by name or exact app ID despite Agent Registry Available - Intentionally not republishing / reconnecting OAuth / rewiring connectors because M365 Copilot path proves the same agent+connection works Classification: FAIL — Teams inbound activity is not reaching the Copilot Studio agent. Questions focused on Teams delivery: 1. Why would Teams personal 1:1 messages never create a Studio conversation while M365 Copilot does? 2. Is a missing TAC Manage apps row expected under Unified App Management when Registry shows Available? 3. Known gaps: Agent Registry Available + channel Synchronized, but Teams client chat bound to a non-runtime endpoint? 4. Best diagnostic if Monitor shows 0 Teams sessions after a confirmed client send? Looking for production experience / documented workaround. Redacted evidence available; no tokens/secrets.Blinking red light on Poly CCX 500 Teams phones
I have a few users that have a Blinking red light on the phone, they have no missed call, or activity notices. I have tried - This is usually caused by a missed call, or activity notices on the account signed into the phone, on the phone I go to “Calls”, once looked at the light generally goes off.
Create event sometimes returns 201 but no Teams meeting link
Hello, I am creating calendar events through Microsoft Graph and setting them as Teams online meetings. Most of the time it works correctly, but very rarely the API returns 201 Created and the event is created without the Teams join link in the response. I have already checked the following: isOnlineMeeting is always set to true. The correct online meeting provider is being used. The issue is intermittent, not consistent. The same integration normally creates Teams meetings successfully. What I need to understand is: Why can Graph return 201 Created but still omit the Teams meeting link? Is this a known intermittent issue with event creation or Teams meeting provisioning? Is there anything I should check in the response, headers, permissions, or follow-up GET call to verify the meeting link was actually created
Is Microsoft Teams a good Intranet?
Our company is fully on Microsoft 365, but employees still struggle to find basic information like policies, company updates, forms, department resources, and important links. Most of it is scattered across SharePoint sites, Teams channels, emails, and random folders. I want to turn Microsoft Teams into that hub where all of this lives, kind of like an intranet. Any suggestions?
Bug? Teams thread permalink does not show the full thread history (Desktop + Web)
Hi everyone, I believe I've found a bug in the new Teams threaded channel experience and I'm trying to determine whether others can reproduce it. Scenario I have a long-running thread in a Teams channel. If I open the thread directly from the channel by clicking the reply count (e.g."340 replies"), I can see the complete conversation, including the most recent replies. However, if I: Open the thread Use Copy link Open the generated link Teams opens the thread, but only displays part of the conversation. Newer replies are missing even though they exist and are visible when opening the same thread directly from the channel. Note: I cannot share the permalink publicly because it points to content within my organisation. However, the link was generated by Teams itself using the thread's Copy link action. The issue is reproducible with any user who has access to the thread. What I've tested Teams Desktop Teams Web Same behaviour in both clients Opening via the channel reply count shows all recent replies Opening via the permalink shows only a partial thread Expected behaviour A thread permalink generated by Teams should open the same live thread view as clicking the reply count from within the channel. The full conversation history should be available and the latest replies should be visible. Ideally: The full thread history should be available. The latest replies should be visible. The link should open the current state of the thread, not an apparently truncated version. Actual behaviour The permalink opens the correct thread but appears to stop at an older point in the conversation, while newer replies remain accessible only when opening the thread from the channel itself. Has anybody else seen this behaviour with threaded channels? Screenshot 1 and 2: Correct behaviour Open thread via "340 replies" Show: Thread title Reply count (e.g. 340 replies) One or two recent messages (July 2026) Screenshot 3: Incorrect behaviour Open the same thread via the permalink Show: Same thread title Same thread Conversation stopping much earlier Missing recent repliesFeature request: Historical Agent Activity Timeline for Microsoft Teams Queues
Hi everyone, We're currently using the new Microsoft Teams Queues app for our IT Service Desk and are very pleased with the improvements Microsoft has introduced. One capability we feel is still missing is a historical Agent Activity Timeline. Today supervisors can only see an agent's current Opt-in/Opt-out status. There is no historical overview showing: When an agent opted in When an agent opted out Which agents were opted in at a specific moment Whether the change was made by the agent, a supervisor or automatically This makes it difficult to investigate: Missed calls Queue performance SLA deviations Staffing questions Incident investigations A simple historical timeline containing the timestamp, queue, agent and source of the status change would already provide tremendous value for supervisors and service desk managers. We've submitted this as a feature request through the Microsoft Feedback Portal: https://feedbackportal.microsoft.com/feedback/idea/2df346ee-bc89-f111-9b47-7c1e52444ef6 If you experience the same limitation, we'd really appreciate your vote. I'm also interested in hearing how other organisations deal with this today. Are you using manual checks, screenshots or another workaround? Thank you! Romain Weimer Head of ICT Operations and Support Witteveen+Bos
Cannot delete organisation from Teams
Hi, It appears to be impossible to delete an organization from Teams Please see the picture below. I am unable to remove the organization beginning with L. I have used my personal email for many years, so I should be the one in control of it! I am the owner/ admin of the email account. However there is no way to delete the rogue /linked organization to which I no longer have access. How can I take back full control of my email/Teams account and remove this rogue organization? I've clicked on everything I can find and nowhere else mentions this organization. Clicking on the organization in Teams just takes me to a page saying "Microsoft Teams Free (Classic) is no longer available" with options to upgrade. I don't want to upgrade I want it deleted! TIA
Auto Attendant & Call Queue Call forwarding to external numbers failing.
Hi all, Since this weekend users accross our org. have been noticing that AA/CQ that forward Calls to external numbers FAIL. This was not the case last week. Flow example : User dials number of AA, this AA has a menu which has Internal and external numbers. Internal numbers -> no problem. Externa numbers -> message (new never heard this): "Please Hold while we forward your call, .... Sorry we could not forward your call at this time, try again later". On user level we are not experiencing this issue when I redirect my calls from work number to external number there is no issue. What is very strange in this entire scenario is that we are EU bases, the resource accounts "Usage location" is on the proper country in EU. But in the Microsoft PSTN USAGE logs we see that the "Azure region for Media" is USSC, USEA, USWE, JPWE, JPEA, MAWE, KRCE where it should be EUWE, FRCE and EUNO ... But No Fail Codes, just Bye ... The dates hold up with the issue... before 26/07 everything passed over EU Region. After 26/07 everything passes over US, KR, MA, JP ... Anyone else having this issue ? Related to the new AI routing implementation gone bad ?Is Microsoft Teams a good Intranet?
Our company is fully on Microsoft 365, but employees still struggle to find basic information like policies, company updates, forms, department resources, and important links. Most of it is scattered across SharePoint sites, Teams channels, emails, and random folders. I want to turn Microsoft Teams into that hub where all of this lives, kind of like an intranet. Any suggestions?Building an employee recognition program that actually lives in Teams?
HR asked me to set up some kind of peer recognition system where people can give kudos to each other. They want it inside Teams because thats where everyone already is. I spent a few hours looking at options, Power Automate flows with adaptive cards, custom bots, etc. but nothing feels clean or sustainable. Has anyone set up a recognition/kudos system thats actually integrated into Teams and not just a bot that posts to a channel?MC1317197 Microsoft Teams: simpler controls and a smarter share panel
Has anybody seen the end user visual guide supposedly to be published on July 9th, 2026, to the Microsoft Adoption site? Either they have not published the visual guide yet or I cannot find the guide on the site. We need to notify users this is coming, and it would be great to have the visual guide to use for the communications / messaging. https://adoption.microsoft.com/microsoft-teams/new-meeting-controls-experience https://admin.cloud.microsoft/?ref=MessageCenter/:/messages/MC1317197 Thank you SharynAndroid phone stuck in login loop for account with previous organisation
Hi. I've recently joined a new organisation and want to have Teams active on my phone as I did with a previous organisation. Unfortunately, my app is stuck in a login loop, I can't log in to log out (my account has been deactivated) and I can't find any place to remove any further user accounts in the system. Basically, I can't use Teams on my phone until I can find away to fix this. Any suggestions?TEAMS - Extra Space between Keyboard and Typing Window
Dear All, I am also facing the issue in TEAMS. During the typing, a large space appears between Keyboard and Typing Window. This is happening only in TEAMS app. I moved from my Nothing phone to Vivo X200Fe, then this problem started. This may be a bug in TEAMS to be fixed for VIVO phones. I use VIVO X200 FE with Android 16 and Google Keyboard. It's very annoying to see this big gap and making us uncomfortable while typing. Please help me how to resolve this. Thanks for your help. Mobile : Vivo X200FE Operating System : Origin OS Android 16 Teams Version : 1416 / 1.0.0.2026123608 Keyboard : Google Keyboard - Version 17.7.4.93236420Teams PowerShell Embraces Web Account Manager and Imposes Control Over Federated Chat
Teams released a new version of their PowerShell module on July 19. The new module contains WAM support and cmdlets to limit federated chat for specific users and tenants. The new controls are welcome, but it’s a sad state of affairs that to configure the settings you must install a new version of a module that doesn’t work so well alongside other Microsoft 365 modules. https://office365itpros.com/2026/07/24/federated-chat-controls/Teams to show offline despite having mobile app
Hi, So I'm sure most of us aware, if you have Teams mobile app installed and signed in, you never show as offline, unless you appear offline. If you go offline on your desktop app, you simply show as "Away" due to having the app on your mobile device. Is there anyway to stop this, and have it show as offline once you quit the desktop app, regardless of having the mobile app? Thanks, ZebTeams Account picker list empty on Welcome screen?
We have a shared computer (conference room), on which people sign in into Teams with "This App only". After the meeting, they sign out. Teams restarts and shows the Welcome screen with the text "Pick an account to continue". Suddenly, this list with saved accounts is now empty. Did something changed in the last update(s) of Teams? If it is an improved security/privacy update, why is the text still shown "pick an account..." if this list remains empty?
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