Question I'm not seeing any results when selecting Graph API as a data source type. I see error message "This graph API path did not return any results" in Calendar Plus web part or in Org. Chart web part when using Graph API as a data source type. Answer
When connecting to a Group endpoint using Data View Plus tools (Calendar Plus, Org. chart, List Aggregator), you will need to make sure you have provided access to Group endpoint with “approve the Group.Read.All” to be able to read groups. After you have made the permission changes, try using the Graph API again.
You can check your permission for the Graph API by following the steps below;
4. From there select the Graph APIs you would like to use and click Approve or Reject
If you run into errors during the approve/reject process, try refreshing the page and select the APIs one at a time to approve rather than approving them in bulk.