Setting an MDM authority gives your administrators the ability to manage the configuration settings for devices throughout your organization. Possible authorities include the following:

• Intune Standalone (configured in Azure)
• Intune co-management (configure using the System Center Configuration Manager console)
• Office 365 MDM (selected in the Microsoft 365 admin center)

When viewing the Intune/Microsoft 365 device management portal, you may see an orange banner prompting you to select an authority. If not, select an option such as Device enrollment to get the authority selection prompt:

In this section, we selected an MDM authority. Now we'll set the device enrollment type and quantity limits.