Hello Folks,
I'm facing an issue that I want to monitor the end date of our DRA cert and the best option that I have found is to list out our WIP policies via Graph API and there should be the date. So I made an app and set the necessary permission for that and when I submit my request I receive an empty array with 200 Ok, but I have more WIP policies.

I'm using this request:
List windowsInformationProtectionPolicies - Microsoft Graph v1.0 | Microsoft Docs
I'm using application permission instead of delegated because it doesn't work with delegated permission.
What I'm doing wrong? Could somebody help me?
Best regards,
József Ódor