'Microsoft Teams: List all Chats regardless of users

We would like to achieve an eDiscovery integration that can track all past and new chat & channel messages.

But we observed that with Delegated Permissions, the app can only list Chats that the user (admin or not) is a member of; while with Application Permissions the list Chats endpoint is not supported.

Searching through the site we see this question: How to retrieve another user's MS Teams chats with the Microsoft Graph API?

Which indicates it's not possible. But his question was a bit different than ours and it was about a year ago. So I'd like to confirm:

  1. Is it possible to list ALL Chats in the tenant? If yes, how?
  2. If it's currently not supported, is there a roadmap or schedule to support it?
  3. Seems the linked question was about impersonating an user and list his/her Chats. Is it still not supported?

Thanks!

microsoft-graph-apimicrosoft-teamsmicrosoft-graph-teams


Solution 1:[1]

It is currently in our backlog but there is no ETA on this. You could create a subscription and get all chat messages in the organization

Solution 2:[2]

This can be done with graph API currently in beta.

GET /teams/{id}/channels/{id}/messages

https://docs.microsoft.com/en-us/graph/api/channel-list-messages?view=graph-rest-beta&tabs=http

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Subhasish
Solution 2 Magnus Karlsson

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