Azure AD makes single-sign on and access management for Freshdesk super simple for your entire organisation. SSO increases the efficiency of internal operations, improves security and reduces the need to create and store passwords * Enterprise Single Sign-On - Azure Active Directory supports rich enterprise-class single sign-on with Freshdesk out of the box. Users sign in using their organizational accounts hosted in Active Directory. * Easy Configuration - Azure Active Directory provides a simple step-by-step user interface for connecting Freshdesk to Azure AD. You can control in Azure AD who has access to Freshdesk. You can enable your users to automatically get signed-on to Freshdesk (Single Sign-On) with their Azure AD accounts. You can manage your accounts in one central location - the Azure portal.

Read complete instructions on https://docs.microsoft.com/en-gb/azure/active-directory/saas-apps/freshdesk-tutorial