It's possible that there may be an issue with your API request or parameters. Here are a few things you can try to troubleshoot the issue:
- Verify that your authentication is working correctly and that you have the necessary permissions to access the report data.
- Double-check your report request parameters to ensure they are correct. Make sure you are specifying the correct date range and aggregation level. You can also try running the report for a smaller date range to see if you get any data back.
- Check the response from the API to see if it contains any error messages that could explain why the report container is None. If there are any error messages, you can use them to help diagnose the issue.
- Try using a different reporting API or library to see if you get different results. This can help you determine if the issue is with your API request or the library you are using. If none of these steps resolve the issue, you may want to reach out to Microsoft support for further assistance.