[Adaptive Card] Issue with rendering images and ToggleVisibility
I am using a simple accordion style adaptive card with a collapsible section: { "type": "AdaptiveCard", "$schema": "https://adaptivecards.io/schemas/adaptive-card.json", "version": "1.5", "body": [ { "type": "Container", "items": [ { "type": "ColumnSet", "columns": [ { "type": "Column", "items": [ { "type": "TextBlock", "text": "Title", "wrap": true, "size": "Medium" } ], "width": "stretch" }, { "type": "Column", "id": "chevronDown", "spacing": "Small", "verticalContentAlignment": "Center", "items": [ { "type": "Image", "url": "https://adaptivecards.io/content/down.png", "width": "20px", "altText": "collapsed" } ], "width": "auto" }, { "type": "Column", "id": "chevronUp", "spacing": "Small", "verticalContentAlignment": "Center", "items": [ { "type": "Image", "url": "https://adaptivecards.io/content/up.png", "width": "20px", "altText": "expanded" } ], "width": "auto", "isVisible": false } ], "selectAction": { "type": "Action.ToggleVisibility", "targetElements": [ "cardContent", "chevronUp", "chevronDown" ] } }, { "type": "Container", "id": "cardContent", "isVisible": false, "items": [ { "type": "Container", "items": [ { "type": "TextBlock", "text": "Text" } ] } ] } ], "separator": true, "spacing": "Medium" } ] } On the initial load, the image (down arrow) gets rendered properly. If I click on it, the collapsed section opens (and the down arrow gets hidden and replaced by the up arrow). However, if I collapse the accordion again, the following happens: And it stays like this until I restart the Teams client. Looking at the devtools network tab for the web client the following behavior can be observed: During the initial load (1) the down.png gets fetched and stored in memory. You can also see the result on the right. If I extend the component (2), the up.png gets fetched and stored in memory. If I then collapse the section again (3), the call to memory for the down arrow fails with GET blob:https://teams.microsoft.com/51e89b2e-7da4-4c80-bf98-a6ee4d257052 net::ERR_FILE_NOT_FOUND It happens in both the standalone client and the web version. Also for multiple users (so it is not just some caching issue on my side). It seems to me that toggling the visibility somehow removes the images from memory. But it only happens for images that are initially visible (it doesn't happen for the up arrow in my case).
Web Notifications API from Personal Tab app doesn't work
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
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
Bot not receiving message events in shared channels (RSC)
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.
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?
Question about barCode.scanBarCode
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
