get_teams_conversation_history2.py

def get_teams_conversation_history(user_graph_auth_token, event_body):
    #...
    # Look at type of conversation and build URL to fetch messages
    if conversation_type == "channel":
        #...        
        # Read conversation ID, find the parent message ID of the conversaton "Post"/thread
        try:
            full_convo_id = event_body.get("conversation", {}).get("id", "")
            parent_message_id = None
            if ";messageid=" in full_convo_id:
                parent_message_id = full_convo_id.split(";messageid=")[-1]
            else:
                raise Exception("❓ Could not extract root message ID from conversation ID")

        except Exception as error:
            print(f"🚫 Error extracting root message ID: {error}")
            raise