Tip – Using Azure AD Monitoring to track Conditional Access failures

If you ever wanted to have an overview of the devices in your environment that have have been blocked from accessing cloud resources due to Conditional Access, then you can use the Monitoring Sign-Ins feature in Azure AD. Using this really simple feature, you can view the user name, the application that the user used, the operating system, and the actual conditional access policy that blocked the user from accessing the cloud resource.

This post will show how you can use Azure AD Monitoring to find devices that failed to meet the needs of the Conditional Access. In my example I have a simple Conditional Access policy for iOS devices that require the device to be compliant to access Exchange Online. I will test accessing Exchange Online using the Outlook mobile app on an iOS device that is not enrolled in Intune.

In Azure Active Directory in either https://devicemanagement.microsoft.com/ or https://portal.azure.com, go to Azure Active Directory and you will see a section called Monitoring. Under Monitoring, you will see Sign-ins.

If you click on Sign-ins, you can then use the drop downs and buttons to view specific information. For example, if you click on Columns you can choose to hide or show certain columns to get the information that you need.

Columns

 

In the example below I have clicked the drop-down under Conditional Access and selected Failure so I can see the devices that have been blocked due to not meeting the Conditional Access policies. In the screenshot below you can see there is an iOS device that used the Outlook Mobile app with a Conditional Access failure.

CAPolicy

 

If you select this, you can then view more information about the device including Username, Application, Client App, and you can also view the Conditional Access policy name that it failed on by clicking on the Conditional Access tab.

In the example below you can see that I have a Conditional Access policy called “Exchange Online iOS Managed Only Devices” with the Grant control of “require compliant device” and that my device failed against this Conditional Access policy.

CADetails

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