Want to integrate Graph API with the Azure app for sending messages to the team's users uisng email

Hi @ghulam murtaza

Sending messages in team channels on behalf of other users in the organization is currently not supported, only on behalf of logged-in users, because application permissions are only available in migration, you need to create the team and channel in the migration state:

Import messages:

POST https://graph.microsoft.com/v1.0/teams/team-id/channels/channel-id/messages

{
   "createdDateTime":"2019-02-04T19:58:15.511Z",
   "from":{
      "user":{
         "id":"id-value",
         "displayName":"Joh Doe",
         "userIdentityType":"aadUser"
      }
   },
   "body":{
      "contentType":"html",
      "content":"Hello World"
   }
}

Hope this helps.

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