Using Python / MSGraph to list a Office365 Email Conversation

Question

We have a shared Office365 mailbox and I’m trying to write some Python code using MSGraph to identify emails which have been responded to.

In Outlook, if you attempt to reply to a message that has already been replied to then a message will pop up at the top of the email stating : “You are not responding to the latest message in this conversation. Click here to open it.” This is what I am attempting to mimic in my code.

I am able to list folders and emails quite happily, but I cannot work out how to identify conversations.

I have found a Microsoft post “List Conversations” https://learn.microsoft.com/en-us/graph/api/group-list-conversations?view=graph-rest-1.0&tabs=python From which I have extracted this line

result = await graph_client.groups.by_group_id('group-id').conversations.get()

which returns

msgraph.generated.models.o_data_errors.o_data_error.ODataError: APIError Code: 404 message: None error: MainError(additional_data={}, code='ErrorInvalidGroup', details=None, inner_error=None, message="The requested group 'group-id' is invalid.", target=None)

Which makes sense, as I have no idea what to enter for the group-id so I’ve just left in the literal text ‘group-id' from the original.

I don’t understand how groups are associated with an email conversation. Is anyone able to enlighten me as to what group-id I should be entering here, how I can find that id, and how groups are associated with email conversations.

I took a quick look at the API docs and there is a List Groups operation, learn.microsoft.com/en-us/graph/api/…. From that, you may need to choose one of the groups to list its associated conversations. — paisanco
– paisanco, Commented Jun 6 at 15:36

Quinn Favo · Accepted Answer · 2025-06-18 03:12:41Z

0

def get_group_id_by_email(access_token, group_email):
    """Get the group ID using the group's email address"""
    headers = {
        'Authorization': f'Bearer {access_token}',
        'Content-Type': 'application/json'
    }
    
    # Filter groups by email address
    endpoint = f"https://graph.microsoft.com/v1.0/groups?$filter=mail eq '{group_email}'"
    response = requests.get(endpoint, headers=headers)
    
    if response.status_code == 200:
        groups = response.json().get('value', [])
        if groups:
            return groups[0].get('id')
    
    return None

try this, you'll need to pass in your access token of course

answered Jun 18 at 3:12

Quinn Favo

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