I want to update Microsoft Teams Chats (one-on-one / Channel) programmatically via C# .NET6. Additionally, I want to download and delete attachments.

The Microsoft Graph API has an “Update chatMessage” section.

https://learn.microsoft.com/en-us/graph/api/chatmessage-update?view=graph-rest-1.0&tabs=http

Can someone please confirm if we can update/delete chat messages and delete and download attachments via the Graph API?

If yes, could you provide a sample code?

Thank you.