1. Sign in to the Azure portal.
2. Next, go to Azure Active Directory>Enterprise applications>All applications.
3. Select your application, and then go to the Provisioning configuration page.
4. Configure provisioning by providing your admin credentials.
5. Select Provision on demand.
6. Search for a user by first name, last name, display name, user principal name, or email address. Alternatively, you can search for a group and pick up to five users.
7. Finally, select Provision (bottom of the page).

Here's an example of what you might see after the successful on-demand provisioning of a user: