4,767 questions with Microsoft Teams | Development tags

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2 answers

Teams Developer Portal: 412 Error "Sandbox Resources not available" and Validation Steps Skipping

Hi, I am experiencing a recurring issue with the Automatic App Validation tool that is preventing me from preparing my app for the Microsoft Teams Store. The Issue: I successfully ran the validation twice earlier today. However, since the third attempt,…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-30T15:02:16.1533333+00:00
Edgar Aguilar 5 Reputation points
commented 2026-02-02T05:28:13.4366667+00:00
Sayali-MSFT 4,611 Reputation points Microsoft External Staff Moderator
2 answers

My custom app installation fails with a generic “App manifest validation error”

My custom app installation fails with a generic “App manifest validation error” message. The same manifest worked previously, and no major changes were made to the app logic. What are the common causes of Teams app manifest validation errors

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-31T06:30:25.5633333+00:00
Gao Pengcheng 0 Reputation points
commented 2026-02-02T05:26:03.68+00:00
Sayali-MSFT 4,611 Reputation points Microsoft External Staff Moderator
2 answers

Shifts App - Bug with setting availability?

Hi, I discovered the Shifts app in Teams when looking for a way to track team member availability and work schedules. It's got exactly what I need - the availability for members to clock in, take breaks, and clock out, and most importantly, set times…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-30T14:41:38.2666667+00:00
DalTRAC Operations 0 Reputation points
answered 2026-02-02T04:47:57.1133333+00:00
Kai-Ex 645 Reputation points Microsoft External Staff Moderator
1 answer

I developed a bot but now I'm having issues trying to access it via teams.

I already tried all settings possible, from Microsoft Team admin to Power Shell commands. I am global admin. Any suggestions?

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-02-02T00:30:19.94+00:00
Ricardo Kazuo 0 Reputation points
answered 2026-02-02T02:43:03.7633333+00:00
Teddie-D 11,430 Reputation points Microsoft External Staff Moderator
3 answers

'Invite User' API call is failing with "The provided '#microsoft.graph.aadUserConversationMember' for 'odXXX.type' is not valid for this operation"

Receiving an error message when trying to add a team member to an existing group chat. However, the error message, ""The provided '#microsoft.graph.aadUserConversationMember' for 'odXXX.type' is not valid for this operation"" doesn't…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-29T18:14:50.9533333+00:00
Automaton Solutions 0 Reputation points
edited a comment 2026-02-02T02:37:56.46+00:00
TiNo-T 10,735 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Subscriptions to virtual events

We use these subscriptions for webinars from this documentation The registration events of a webinarsolutions/virtualEvents/webinars/{webinarId}/registrationsThe events of a specific webinarsolutions/virtualEvents/webinars/{webinarId}This works for…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-30T11:48:31.18+00:00
Andrei Aliseyeu 40 Reputation points
accepted 2026-02-01T11:31:31.0433333+00:00
Andrei Aliseyeu 40 Reputation points
3 answers

MS teams - Create an outgoing webhook issue

Hi when i try to create "Create an outgoing webhook issue" i am unable to do it due to error "Error submitting webhook!" The problem is that, the teams should send a webhook but nothing is received. I am saying that there is no issue…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-22T08:23:50.18+00:00
Miha Zoubek 5 Reputation points
commented 2026-01-31T21:28:47.07+00:00
William Kewley 0 Reputation points
2 answers One of the answers was accepted by the question author.

In-meeting notifications issues

According to the https://learn.microsoft.com/en-us/microsoftteams/platform/apps-in-teams-meetings/in-meeting-notification-for-meeting?referrer=announcement&tabs=desktop#feature-compatibility-by-user-types in-meeting notification should be available…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-30T14:14:21.68+00:00
Dima K 20 Reputation points
accepted 2026-01-31T15:32:56.1033333+00:00
Dima K 20 Reputation points
2 answers

Using power automate in a private channel with an @mention tag gives the tag as 0 members

When running a power automate off the back of an email receipt I want to mention a tag in a private channel. The flow runs fine with no errors however when you hover over one of the used tags it says it has no members even though the tag has been set up…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-21T12:51:21.24+00:00
Adam Chipchase 0 Reputation points
answered 2026-01-30T17:08:15.04+00:00
Prasad-MSFT 10,281 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Why does a Microsoft Teams tab fail to load after authentication in the Teams client?

I’m developing a custom Microsoft Teams tab using Azure AD authentication. The tab loads correctly in a regular browser, but inside the Teams desktop client it either stays blank or fails after sign-in. The console shows authentication-related errors,…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-29T05:46:03.3133333+00:00
SteinbacherBaich-4897 165 Reputation points
accepted 2026-01-30T14:57:19.5766667+00:00
SteinbacherBaich-4897 165 Reputation points
1 answer

How to create multi tab teams app using Microsoft 365 agents toolkit like team's toolkit

We have an existing Microsoft Teams application that was originally created using the Teams Toolkit extension in VS Code. However, the Teams Toolkit extension has now been deprecated, and Microsoft has introduced the new Microsoft 365 Agents Toolkit. We…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-29T11:47:34.1366667+00:00
Hanumant Soft - Dev 60 Reputation points
commented 2026-01-30T11:16:08.8833333+00:00
Steven-N 19,295 Reputation points Microsoft External Staff Moderator
2 answers

Microsoft Teams webhook events and recording

I am developing a C# application with the purpose of recording Microsoft Teams calls (PSTN, internal calls etc). I have set up an app registration and configured it as multi-tenant. I have also setup a multi tenant Azure Bot. Right now, I am trying to…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-20T06:19:02.52+00:00
CG 0 Reputation points
commented 2026-01-30T10:58:25.1633333+00:00
Kudos-Ng 12,685 Reputation points Microsoft External Staff Moderator
1 answer

Migrating 1:1 chat messages to Teams from another platform

I am testing the possibility of importing 1:1 chat messages from another platform into Teams. I have been following the procedures described here. I've found that it is possible to put a 1:1 chat into migration mode, import historical messages, and mark…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-29T06:54:19.3366667+00:00
L 0 Reputation points
commented 2026-01-30T09:23:09.5366667+00:00
Steven-N 19,295 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Microsoft Graph – startTranscription API returning 400 “The input was not valid” even with correct payload and bot permissions

I am trying to start live transcription for a Microsoft Teams call using the Graph Cloud Communications API (beta): POST https://graph.microsoft.com/beta/communications/calls/{callId}/microsoft.graph.startTranscription Request body: {…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-23T12:22:40.85+00:00
Shahid Haider 21 Reputation points
commented 2026-01-30T09:22:23.3733333+00:00
Sayali-MSFT 4,611 Reputation points Microsoft External Staff Moderator
1 answer

Migrating messages with inline images forbidden

I am testing the possibility of importing messages from another platform into Teams. I have been following the procedures described here. When I try to post a message with an inline image to a channel in migration mode, a 403 Forbidden response is…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-30T05:20:06.6266667+00:00
L 0 Reputation points
answered 2026-01-30T08:08:02.1166667+00:00
Kudos-Ng 12,685 Reputation points Microsoft External Staff Moderator
2 answers

RSC policy

Hi Team, can somebody pls provide details to create and assign a RSC policy to a user/group of users/all users if there is another way to do it to simplify the process. currently we are using below steps to do this activity but the process is lengthy…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-28T01:37:40.9566667+00:00
Sushil Dangi 0 Reputation points
commented 2026-01-30T06:53:10.4966667+00:00
TiNo-T 10,735 Reputation points Microsoft External Staff Moderator
2 answers

retrieve shifts of my teams for a given period of time

Hello, I want to get all the shifts of my teams for a period of time but the api route that i found doesn't seem to work .... Here it is : https://graph.microsoft.com/v1.0/teams/{team_id}/schedule/shifts?$filter=draftShift/startDateTime ge…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-26T15:24:13.81+00:00
Sirine 40 Reputation points
commented 2026-01-30T05:44:06.7866667+00:00
Teddie-D 11,430 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Teams tab authentication fails with “Refused to display login.microsoftonline.com in a frame (X-Frame-Options: deny)”

I’m developing a Microsoft Teams tab and trying to authenticate users using an embedded login flow. When the tab loads, the browser console shows the error: Refused to display ‘https://login.microsoftonline.com/…’ in a frame because it set…

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-28T12:43:58.7933333+00:00
Purdy Charry 80 Reputation points
accepted 2026-01-30T05:13:56.4266667+00:00
Purdy Charry 80 Reputation points
2 answers

i want to disable Read Ai form my teams account please

Hi I wish to diable read AI on my teams please help Moderator note: personal info removed

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2026-01-29T01:53:50.06+00:00
Catherine Saunders 0 Reputation points
commented 2026-01-30T04:28:53.0266667+00:00
Sophie N 10,755 Reputation points Microsoft External Staff Moderator
2 answers

Teams Room using multiple control panels

Is Microsoft Teams Room System capable of supporting more then 1 control panel? Effectively having 2 control panels mirroring each other.

Microsoft Teams | Development
Microsoft Teams | Development
Building, integrating, or customizing apps and workflows within Microsoft Teams using developer tools and APIs
4,767 questions
asked 2025-02-28T11:22:47.3033333+00:00
James Marciano 0 Reputation points
edited an answer 2026-01-29T22:51:05.6766667+00:00
Paul Hargrove 20 Reputation points