Setting up a cloud to cloud federation is a great way to simplify your infrastructure and limit the amount of infrastructure components that you need to manage. It also provides an easy way for users to authenticate to ServiceNow without having to remember a dedicated username and password for the system. As a system administrator you also have the added benefit of having only one place to administrate your company’s identities.
In the article I will go through the setup on both Microsoft Azure and in ServiceNow. You can read the full article here: https://community.servicenow.com/docs/DOC-7543