Teams Developer topics

Copilot Studio bot in Teams occasionally sends duplicate responses

Leo9 — Thu, 30 Apr 2026 13:52:23 GMT

I’m using a Copilot Studio bot deployed in Microsoft Teams, and I’m experiencing an intermittent issue where a single user message occasionally triggers two identical responses.

This does not happen consistently, and there is no intentional duplicate logic in my bot design.

I’m not sure whether this is caused by duplicate message delivery from Teams (e.g., retries or at-least-once delivery behavior), or something within Copilot Studio itself.

Is this a known behavior for the Teams channel or Copilot Studio?

Are there any recommended ways to detect or prevent duplicate responses at the bot level?

Any insights or best practices would be appreciated.

Copilot Studio in Teams sometimes wraps user input with HTML tags (e.g.,
)

Leo9 — Thu, 30 Apr 2026 13:49:51 GMT

I’m using Copilot Studio deployed to Microsoft Teams, and I noticed that user messages are occasionally received with HTML tags.

For example, when a user sends "get me the onboarding status", sometimes it displays in the dialog box as "<div>get me the onboarding status</div>"

This does not happen consistently.

I’m not sure whether this is caused by how Teams renders or sends messages (e.g., HTML vs plain text), or if it is something specific to Copilot Studio.

Is this expected behavior for the Teams channel?

Any clarification or recommended handling would be appreciated.

CRM Teams Connection Problem

jrbuero — Tue, 21 Apr 2026 09:11:56 GMT

I have CRm integreated in Teams and every time i need to use crm app function like email-sync i get an error.

ad-hoc call transcripts via graph api endpoint

ldruker — Mon, 20 Apr 2026 14:01:27 GMT

I have an app with the below permissions. I can successfully get list of transcripts and transcript content for online meetings. But when I try to get list for ad-hoc calls, I get the 400 Bad Request error. Any suggestions on how to get ad hoc call transcripts?

Permissions

Error:

Create Bot without Developer Studio

Petri-X — Thu, 16 Apr 2026 14:16:34 GMT

Hi,

We have a bit hard policies and users are not able to use the Developer Studio by they own to make new Bot:

If you press [New Bot] you can give the name, but then [Create Bot] start hanging and does nothing. Previously on Azure had a user setting which block or allow users to register apps.

Now I need our tenant admins or application administrators (?) to setup the bot(s) manually.

Does anybody knows if the bot registration for Teams is possible to do without developer studio? The Developer Studio shows only your own Bots, so they cannot do that for me using Developer Studio.

Web Notifications API from Personal Tab app doesn't work

SGymerATComitFS — Tue, 14 Apr 2026 10:05:08 GMT

I have a client-side web application that we're trying to get to run as a Teams personal tab app.

I have the app working as a teams app, as long as we "open in new window" so that the app doesn't get put to sleep as it needs a permanently up session with something else.

Our app uses Web Notifications API (https://developer.mozilla.org/en-US/docs/Web/API/Notification) to create desktop notificiations, but this does not seem to work when running as a Teams tab app popped out into a new window. No notifications are displayed.

Permissions have been requested correctly and given and Windows is set to allow notifications, but these web notifications never make it out of teams to the desktop.

There are no errors in the browser console to say the web notifications are not supported in Teams.

Is this not supported as a teams app? The inbuilt activity feed is useless for our purpose (for a few reasons), so please don't suggest I use graph to make use of that instead.

SSO for a Python Teams Bot (M365 Agents SDK + FastAPI) — Single-Tenant, Multi-Tenant, and UAMI

seydou — Mon, 13 Apr 2026 15:19:00 GMT

We're building, a Teams bot (Python / FastAPI) that uses the M365 Agents SDK (microsoft-agents-hosting-fastapi + microsoft-agents-authentication-msal, v0.8.0) with a CloudAdapter and MsalConnectionManager. The bot is currently scoped to personal only and runs behind an Azure Bot resource.

We are trying to implement SSO to authenticate users, so far we are not successful. The main blocker is that we failed to authenticate users from tenant different than the Azure Bot resource of our app.

If anyone has successfully managed to authenticate users on Teams using a setup similar than ours please do share your experience. We would love to learn from your experience.

So far this was our main source of documentation:

https://learn.microsoft.com/en-us/microsoftteams/platform/bots/how-to/authentication/bot-sso-overview

Many thanks

how to know if user has blocked bot conversation teams

viveknuna — Mon, 13 Apr 2026 12:57:56 GMT

https://techcommunity.microsoft.com/discussions/teamsdeveloper/possibly-check-blocked-state-instead-of-exception/2358858/replies/4509997

Get all AA/CQ with Resource Accounts

JFM_12 — Thu, 02 Apr 2026 11:13:56 GMT

Hello

Is it possible to have a script that pulls out all AA/CQ with resource accounts.

I would like to pull it to find out which of the AA/CQ do not have resource account.

If there is no resource account the field would be empty.

Regards
JFM_12

Bot not receiving message events in shared channels (RSC)

deepak_nayak — Fri, 27 Mar 2026 10:59:17 GMT

Hi folks,

Running into an issue with a bot in Microsoft Teams shared channels.

I've configured RSC permissions to listen for new messages. This works as expected in standard channels - I receive events for every new message.

However, in shared channels, the behavior is different:

I only receive events when the bot is explicitly tagged
Regular messages in the channel don’t trigger any events

Permissions currently granted:

Channel.ReadBasic.All (Application)
ChannelMember.Read.All (Application)
ChannelMessage.Read.All (Application)

Has anyone faced this with shared channels? Is this expected behavior or am I missing something in setup?

Thanks!

Error ColdStoreNotSupportedForMessageException when sending message MS Teams via Graph API.

Kimchhun — Wed, 25 Mar 2026 10:29:13 GMT

I'm using the Graph API to send a message to a Microsoft Teams channel, but I'm getting the following error.

Endpoint: https://graph.microsoft.com/v1.0/teams/{team_id}/channels/{channel_id}/messages

Reference: https://learn.microsoft.com/ja-jp/graph/api/chatmessage-post?view=graph-rest-1.0&tabs=http#http-request

Error response:

{ "code": "NotFound", "message": "NotFound", "innerError": { "code": "1", "message": "MessageNotFound-Message does not exist in the thread: ColdStoreNotSupportedForMessageException:ColdStoreMessageOperations is not supported if cutOffColdStoreEpoch is not provided. (msgVersion:1773201279001, cutoff:1773137924398)", "date": "2026-03-17T10:18:44", "request-id": "7e4d1acd-05d0-4ff6-82ac-4cf0549bfa56", "client-request-id": "7e4d1acd-05d0-4ff6-82ac-4cf0549bfa56" } }

I couldn't find any documentation related to ColdStoreNotSupportedForMessageException. Has anyone encountered this before or have any insight into what's causing it?

Citations on MS Teams IPad is broken

achebrol — Tue, 24 Mar 2026 22:42:53 GMT

Hi,

Citations rendering on Teams(iPad) is broken. it works fine on desktop as shown below

but it shows an error saying "unable to access" on ipad. this was working fine a month ago but broken now.

Can i get some help?

Thanks

Azeet

Question about barCode.scanBarCode

BHS — Wed, 18 Mar 2026 08:04:20 GMT

Dear sir

I'm developing Teams mobile application, static tab(Personal app Tab).
We need a QR scan feature. However I can't use that.

barCode.isSupported() is always false.

Is there any restriction on static tab app?

Here are my conditions.

-. "import { app, authentication, barCode } from '@microsoft/teams-js';" . version : 2.37.0

-. manifest.json : "devicePermissions": ["media"],

-. app.initialize() is sucessfully done. I can see the barCode object

Unfortunatly, barCode.isSupported() shows false.

Android, iOS has the same result.

Can you advise how I can use the barCode camera.?

Many thanks

Would Microsoft Teams SDK for Python (Preview) affect marketplace submission

tharushikds — Wed, 04 Mar 2026 06:32:34 GMT

Hi,

I need to know if it's possible to publish a custom teams app and get validated to have the app in marketplace for public if it's developed using Teams SDK with python which is mentioned as still in preview.

Teams SDK is now generally available for JavaScript and C#, supports Python in developer preview

https://learn.microsoft.com/en-us/microsoftteams/platform/bots/overview

https://learn.microsoft.com/en-us/microsoftteams/platform/resources/dev-preview/developer-preview-intro?tabs=new-teams-client

https://github.com/microsoft/teams.py

Thank you!

When I install my app to a second channel in Teams, the this.onMessage will nto trigger

markofarl — Mon, 02 Mar 2026 14:53:50 GMT

I have a bot which when installed to a channel will read messages using this.onMessage, if I add another channel to the same team it will also read the messages without installing the bot on that channel.

However if a user installs the bot again, to the second channel which some users do, the second channel will not trigger the onMessage listener except when using the @botname command. I cant log errors anything because it just wont trigger. I feel like the context gets screwed up, all the other listeners fire on other channel

Any help please?

All Teams Bots Not Working At All

DasunDaDev — Thu, 12 Feb 2026 03:16:47 GMT

This morning all of a sudden all our Teams bots stopped working. These are bots built using bot framework running on Azure Bot Teams Channel. Is this related to the current Teams API issue we talking about? All of a sudden all our client and test bots stopped working. But the Web Channel is working as expected. Only the teams channel. We even checked with ngrok and its not even hitting the service.

We checked the app registrations and their credentials as well to ensure not issues there too. Completely lost whats happening.

Help?

Add Teams Chat Member API call inexplicably Failing

AutomatonSolutionsRDE — Tue, 10 Feb 2026 19:22:56 GMT

I have tried every possible permutation of this API call that I can imagine. Nothing works. I already started a thread on this, but now it appears to be glitched and I can no longer reply to message sin that thread for some reason. What can I do to contact Microsoft Support and speak directly to their API team? The responses I have gotten all appear to be AI generated and NONE ARE CORRECT. I really need help, from a human, that actually might understand what's going on here. Please help.

"#microsoft.graph.aadUserConversationMember' for 'odata.type' is not valid for this operation." <- I am receiving this error despite the fact that we already have several users in this channel with that same type.

This API call is intended to invite a user to an existing group chat. This should really be a very simple thing.

1. ALL users in the group chat already have type = '#microsoft.graph.aadUserConversationMember' so the error message doesn't even make sense.
2. This IS a Group chat. NOT a channel. NOT a one on one chat.
3. The Inviter has permission to invite users to this groupchat through the frontend. (and in fact can do so using the frontend.)

Why is this API call failing? I have tried scrubbing the API call of special characters, I have tried using the beta endpoint, I have tried several different formats for the input.

ERROR:

{"error":{"code":"BadRequest","message":"The provided '#microsoft.graph.aadUserConversationMember' for 'odata.type' is not valid for this operation.","innerError":{"date":"2026-02-10T19:11:28","request-id":"XXXXX","client-request-id":"XXXXXX"}}}

POST

URL: https://graph.microsoft.com/v1.0/chats/IDHERE/members

BODY:
{

"chatType": "group",

"\u0040odata.type": "#microsoft.graph.aadUserConversationMember",

"user\u0040odata.bind": "https://graph.microsoft.com/v1.0/users/IDHERE",

"roles": []

}

Issue with Teams 'Add a User to Group Chat' API call?

AutomatonSolutionsRDE — Tue, 03 Feb 2026 19:57:18 GMT

I am getting a very strange error when trying to add a new user to an existing group chat using a GraphQL call. I have looked through the documentation, asked AI, and even contacted Microsoft support and no one can seem to explain why this API call is failing.

Below is the API call that I am making. I can find no reason that I should be receiving the error message '#microsoft.graph.aadUserConversationMember'

To get the basic questions out of the way....

Yes, the account making the API call DOES have permission to add users to the channel (and can do so using the frontend as normal.)
Yes, the thread in question is a group chat, so adding members to that chat should be a valid command.
Yes, ALL members in the group chat currently have the type '#microsoft.graph.aadUserConversationMember', so it is definitely a valid type for users in this channel.
Yes, I have tried both the beta and stable channel; each gives the same error message.
Yes, the invited user is internal to our organization, and is a valid target for the invite (invites work through frontend as well.)
No, I cannot use the 'add member to channel' endpoint, because the chat is a group chat, not a channel.

I can only assume, at this point, that the error message is a red herring and there's something else wrong with my API call?Why am I receiving this error message when trying to add a member to a pre-existing group chat? Thanks in advance for any assistance.

POST to URL:
https://graph.microsoft.com/beta/chats/[[THREAD_ID]]@thread.v2/members

BODY:
{

"@odXXX.type": "#microsoft.graph.aadUserConversationMember",

"roles": [],

"email address removed for privacy reasons": "https://graph.microsoft.com/v1.0/users/[[USER_ID]]"

}

ERROR MESSAGE:
{"error":{"code":"BadRequest","message":"The provided '#microsoft.graph.aadUserConversationMember' for 'odXXX.type' is not valid for this operation.","innerError":{"date":"2026-01-29T18:10:32","request-id":"<PII:moderator removed>","client-request-id":"<PII:moderator removed>"}}}

Status during a Teams call : "in a call" only once others have joined!

HBod — Mon, 26 Jan 2026 14:26:18 GMT

Hi,

I work remotely so most of my job is through Teams calls with laypeople (i.e. not necessarily Teams savvy).

I like to start the calls a few minutes before to prepare my shared whiteboard, etc., make sure sound is OK...

However, the status, even when I'm alone, is automatically "in a call" and so I don't have notifications anymore, which is generally OK, except that if my client tries to call me on the phone (which is on Teams), they go directly to voicemail. It is annoying to manually switch it.

I think that when we are ALONE in the call, waiting for others to join, we should appear as AVAILABLE so that all notifications, etc. are still enabled until we are not alone in the meeting... and then, yes, all the do not disturb aspects must kick in!

Thanks!

How to create an audio calling bot for the Marketplace?

Olly1212 — Mon, 26 Jan 2026 11:59:15 GMT

What is the correct set of framework(s)/tools that allow a bot to make audio calls to teams users that can be installed to multiple customer's Teams instances, and added to the Teams Marketplace, as of January 2026?

It seems that there is a lot of transition going on in the various bot frameworks that are supported by Microsoft. The new Microsoft 365 Agents SDK doesn't yet support streaming audio , and won't do until at least March 2026. The Teams Microsoft Graph Comms libraries still work and appear to be current, however that is only half the puzzle. I need to also package up the bot that has been built, including build an app manifest, etc. The AzureBot still works, but upon packaging up, it seems that Multi-tenant support was obsoleted. The permissions for the various Microsoft graph samples do not match up with the permissions for the packaging of the new agent (e.g. Calls.AccessMedia.All, Calls.Initiate.All are required, but not present). It also isn't clear to me Microsoft Graph App Manifest can help in this matter.

Any clarity on the matter would be much appreciated. This is kinda urgent, so can't wait until Agent SDK

Teams Developer topics

Copilot Studio bot in Teams occasionally sends duplicate responses

Copilot Studio in Teams sometimes wraps user input with HTML tags (e.g., )

CRM Teams Connection Problem

ad-hoc call transcripts via graph api endpoint

Create Bot without Developer Studio

Web Notifications API from Personal Tab app doesn't work

SSO for a Python Teams Bot (M365 Agents SDK + FastAPI) — Single-Tenant, Multi-Tenant, and UAMI

how to know if user has blocked bot conversation teams

Get all AA/CQ with Resource Accounts

Bot not receiving message events in shared channels (RSC)

Error ColdStoreNotSupportedForMessageException when sending message MS Teams via Graph API.

Citations on MS Teams IPad is broken

Question about barCode.scanBarCode

Would Microsoft Teams SDK for Python (Preview) affect marketplace submission

When I install my app to a second channel in Teams, the this.onMessage will nto trigger

All Teams Bots Not Working At All

Add Teams Chat Member API call inexplicably Failing

Issue with Teams 'Add a User to Group Chat' API call?

Status during a Teams call : "in a call" only once others have joined!

How to create an audio calling bot for the Marketplace?

Copilot Studio in Teams sometimes wraps user input with HTML tags (e.g.,
)