Conditional Access is a premium feature of Azure Active Directory that allows administrators to specify conditions under which users can authenticate into other cloud services. With conditional access, you can specify that a certain set of users can only authenticate to specific applications from specific IPs for example.
The hard part about conditional access is that it takes a lot of work to configure and test the policies. Ensuring that you know how a policy is going to affect your users is critical. In this blog post I’m going to look at a new tool in the Conditional Access line that helps with this problem. "Azure-Active Directory-Conditional Access-What If" gives administrators a new way to test Conditional Access policies to see what the effect of applying those policies will be.