When you are looking to use the "Office 365" authentication to configure the SigningHub Account Settings, you need to register your app in Azure Active Directory. Upon successful registration, a unique Application ID is generated in Azure that will be used in the Account Settings. Let's jump straight as how to obtain this identity.  


Step 1: Register App in Azure Active Directory
Step 2: Application ID and Reply URI Configurations
Step 3: Support for Multiple Enterprises