Reporting Usage of Azure App Proxy App Registrations / Service Principals

Question

Is there anyway to report on the usage of the App Registration / Service Principal used for an Application Proxy? Even though the App Proxy service registers a client secret for pre-authentication there is never any sign-in data for the service principal ...

Answer 1

hello Jamies, Welcome to MS Q&A

To report on the usage of the App Registration or Service Principal used for an Application Proxy, you can utilize the Service principal sign-in activity report available in Microsoft Entra. This report provides the last activity date for every service principal, detailing whether it was used as a client or resource app and in what context (app-only or delegated).

You can access this report through the Microsoft Entra admin center or by using Microsoft Graph. Service principal sign-in activity using Microsoft Graph.The servicePrincipalSignInActivity reports can be viewed using Microsoft Graph.

Add the following query in Graph Explorer to retrieve the service principal sign-in activity, then select the Run query button.

GET https://graph.microsoft.com/beta/reports/servicePrincipalSignInActivities/{id}

References:

• What is the Usage and insights report in Microsoft Entra ID?

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Deepanshu