Configure Office 365 Domain
Registering Domains in Office 365
Before you can configure usersIn Okta literature, we generally refer to "users" as the people who serve as Okta administrators. When we refer to "end users" we are generally referring to the people who the administrators serve. That is, those who use Okta chiclets to access their apps, but have no administrative control. for federated authentication with Office 365, you need to add a domainA domain is an attribute of an Okta organization. Okta uses a fully-qualified domain name, meaning it always includes the top-level domain (.com, .eu, etc.), but does not include the protocol (https).. By default, when you create your Office 365 subscription, Microsoft gives you a default domain in the format yourtenant.onmicrosoft.com. Users with a UPN that resolves to this domain (i.e. firstname.lastname@example.org) cannot be federated, therefore you need to add another domain.
You can add a domain through the Office 365 portal interface or by using PowerShell. The Microsoft guide provides instructions on how to add a domain. If you plan to use Okta’s Office 365 integration for provisioning new accounts, and your users in Active Directory do not have a username that reflects the domains you wish to use in Office 365, then refer to the sections About Universal Directory.
After adding domain, Office 365 will ask if you want to add new user accounts. Continue and select the option to skip the step again.
Then, set the domain purpose and let Office 365 configure your domain if you intend to use Exchange or Skype for Business services.Top