There are 2 ways to add admin user in to an instance.
1. System Administrator User Import from Acive Directory.
2. Using admin user provisioning tool.
Using admin user provisioning tool.
1. Run the AdminUserProvisioning shortcut placed in desktop of AOS server.
2. Enter the email address of the account has AAD ( Azure Active directory) and Submit.
During VM creaction, we may missed out to add the shortcut of user provisioning tool in desktop, for that we have to manually create the shortcut from the installed exe run file.
Add shortcut to desktop for selected file.