Windows Autopilot error “can’t connect to the URL for your organization’s MDM terms of use” | Quisitive

I was spinning up Windows Autopilot in a new customer’s tenant and got hit with this message during the Windows Out-of-Box experience (OOBE).

Windows11 Autopilot-can't connect to the URL
Windows11 Autopilot-can’t connect to the URL
Something went wrong.
Looks like we can't connect to the URL for your organization's MDM terms of use.  Try again, or contact your system administrator with the problem information from this page.
Additional problem information:
Error: invalid_client
Error subcode:
Description: failed%20%to%20%authenticate%20user

The most interesting Google/Bing/DuckDuckGo search result was on a MSDN forum, but that didn’t seem to make sense for this tenant.

For this tenant / scenario, the solution was really simple… the user wasn’t licensed for Microsoft Intune or Azure AD Premium.