What is the ‘what if’ tool in Azure Active Directory conditional access?
By: Dave Romano
The conditional access what if policy tool allows you to understand the impact of your conditional access policies on your environment. Instead of test driving your policies by performing multiple sign-ins manually, this tool enables you to evaluate a simulated sign-in of a user. The simulation estimates the impact this sign-in has on your policies and generates a simulation report. The report does not only list the applied conditional access policies but also classic policies if they exist.
The what if tools also provides a way to quickly determine the policies that apply to a specific user. You can use the information, for example, if you need to troubleshoot an issue.
How it works
In the conditional access what if tool, you first need to configure the settings of the sign-in scenario you want to simulate. These settings include:
- The user you want to test
- The cloud apps the user would attempt to access
- The conditions under which access to the configures cloud apps is performed
As a next step, you can initiate a simulation run that evaluates your settings. Only policies that are enabled are part of an evaluation run.
When the evaluation has finished, the tool generates a report of the affected policies.
Running the tool
You can find the what if tool on the Conditional access – Policies page in the Azure portal.
To start the tool, in the toolbar on top of the list of policies, click What if.
Before you can run an evaluation, you must configure the settings.
This section provides you with information about the settings of simulation run.
You can only select one user. This is the only required field.
The default for this setting is All cloud apps. The default setting performs an evaluation of all available policies in your environment. You can narrow down the scope to policies affecting specific cloud apps.
The IP address is a single IPv4 address to mimic the location condition. The address represents Internet facing address of the device used by your user to sign in. You can verify the IP address of a device by, for example, navigating to What is my IP address.
This setting mimics the device platforms condition and represents the equivalent of All platforms (including unsupported).
This setting mimics the client apps condition. By default, this setting causes an evaluation of all policies having Browser or Mobile apps and desktop clients either individually or both selected. It also detects policies that enforce Exchange ActiveSync (EAS). You can narrow this setting down by selecting:
- Browser to evaluate all policies having at least Browser selected.
- Mobile apps and desktop clients to evaluate all policies having at least Mobile apps and desktop clients selected.
This setting mimics the sign-in risk condition.
You start an evaluation by clicking What if. The evaluation result provides you with a report that consists of:
- An indicator whether classic policies exist in your environment
- Policies that apply to your user
- Policies that don’t apply to your user
If classic policies exist for the selected cloud apps, an indicator is presented to you. By clicking the indicator, you are redirected to the classic policies page. On the classic policies page, you can migrate a classic policy or just disable it. You can return to your evaluation result by closing this page.
On the list of policies that apply to your selected user, you can also find a list of grant controls and session controls your user must satisfy.
On the list of policies that don’t apply to your user, you can and also find the reasons why these policies don’t apply. For each listed policy, the reason represents the first condition that was not satisfied. A possible reason for a policy that is not applied is a disabled policy because they are not further evaluated.
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