Access Dynamics CRM API with Service Principal

Hello there,

I am trying to read data from a couple of tables stored in Microsoft Dataverse through the API. I've completed the following steps:

Register application under App registrations in Microsoft Entra ID
Allow access to "Dynamics CRM" under API Permissions, also made sure to select Grant admin consent for XXX
Create new Application User in Power Platform Admin console (as described here: https://learn.microsoft.com/en-us/power-platform/admin/manage-application-users)
Added the newly registered application in Entra ID to the Application User
- I added "System Administrator" Security Role for now, but intend to change this in the future. I only need to be able to read data, but I want to avoid having issues due to the insufficient priviliges

When I try to send a request to the api endpoint https://<organization>.crm4.dynamics.com/api/data/v9.2/<table> (url is directly from the power platform admin console) I keep getting the error

... "The user is not a member of the organization."}}

I am able to successfully complete the request when I authenticate using Azure CLI, however the error occurs when I try to authenticate with client ID, client secret & tenant ID (as received from the MS Entra ID app registration).

Code snippet (in Python) for performing the request:

---

import requests

from azure.identity import DefaultAzureCredential

DATAVERSE_URL = "https://<organization>.crm4.dynamics.com"

def get_token():
credential = DefaultAzureCredential()

token = credential.get_token(DATAVERSE_URL + '/.default')

return token.token

def send_request():

token = get_token()

headers = {
'Authorization': f'Bearer {token}',
'OData-MaxVersion': '4.0',
'OData-Version': '4.0',
'Accept': 'application/json',
}

url = f"{DATAVERSE_URL}/api/data/v9.2/<table>"
response = requests.get(url, headers=headers)