Check below steps in explanation for Task.
Explanation:
To create a new Azure AD directory named 28681041.onmicrosoft.com that contains a new user named [email protected], you can follow these steps:
* In the Azure portal, search for and select Azure Active Directory.
* In the left pane, select Domains.
* Select Add domain.
* In the Add a custom domain pane, enter the following information:
* Domain name: Enter the domain name you want to use. For example, 28681041.onmicrosoft.com.
* Add domain: Select Add domain.
* In the left pane, select Users.
* Select New user.
* In the New user pane, enter the following information:
* User name: Enter the user name you want to use. For example, [email protected].
com.
* Name: Enter the name of the user.
* Password: Enter a password for the user.
* Groups: Select the groups you want the user to be a member of.
* Select Create.
You can find more information on these topics in the following Microsoft documentation:
* Add a custom domain name to Azure Active Directory
* Create a new user in your organization - Azure Active Directory