You get "This user is not authorized to enroll. Error code 80180003" when trying to enroll a Windows device in Intune. This usually means an enrollment restriction is blocking the device, the user hit their device limit, or MDM auto-enrollment isn't configured for their account.
The Fix
Check three things in the Intune admin center:
1. Device Limit
Devices > Enrollment restrictions > Device limit restrictions > Default
Make sure the user hasn't hit the limit (default is 15). Delete old devices or increase the limit.
2. Platform Restrictions
Devices > Enrollment restrictions > Device type restrictions > Default
Confirm Windows (MDM) is set to Allow, not Block. Check if personally-owned devices are allowed if this isn't a corporate device.
3. MDM User Scope
Azure AD > Mobility (MDM and MAM) > Microsoft Intune
MDM user scope should be set to All or a group that includes this user.
Verify
Have the user retry enrollment via Settings > Accounts > Access work or school > Connect.
The device should enroll without the 80180003 error.

Related Reading
Need hands-on help? Contact RainCity Techworks.
