MD-102 Manage and maintain devices Practice Question
You are troubleshooting an iPhone that cannot enroll in Microsoft Intune. The user receives an error stating 'This device is already enrolled in another MDM.' What is the most likely cause?
⚠ Common exam trap
It's easy for candidates to confuse MDM enrollment conflicts with other common issues like outdated OS or licensing, but the specific error message directly points to an existing MDM profile, not generic configuration or access problems.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The device is already enrolled in Apple Business Manager or another MDM.
The error 'This device is already enrolled in another MDM' indicates that the iPhone has an existing MDM profile that conflicts with Intune enrollment. This typically occurs when the device is already enrolled in Apple Business Manager (ABM) or another MDM solution, as iOS enforces a single MDM enrollment per device. Intune cannot overwrite an existing MDM profile without first removing it.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The device is already enrolled in Apple Business Manager or another MDM.
Why this is correct
The error indicates an existing MDM enrolment record tied to the device's Apple serial or enrolment ID. iPhones permit only one MDM profile at a time, so a prior enrolment — via Apple Business Manager, Apple Configurator, or another MDM — must be removed before Microsoft Intune can enrol it.
- ✗
The device has a VPN configuration installed.
Why it's wrong here
A VPN configuration does not register a device with an MDM authority, so it cannot trigger the "already enrolled" error. VPN profiles merely route traffic through a tunnel. This would be relevant when troubleshooting connectivity to Intune endpoints, not enrolment conflicts. The error stems from a stale MDM enrolment record, typically in Microsoft Entra ID or Apple Business Manager.
- ✗
The device is not running the latest iOS version.
Why it's wrong here
An outdated iOS build cannot trigger an "already enrolled in another MDM" error; that message comes from a stale MDM enrolment record, either in Microsoft Entra ID or Apple Business Manager, blocking re-enrolment. Version checks matter when a device fails the minimum OS requirement for a configuration profile or compliance policy, not for duplicate-enrolment conflicts.
- ✗
The user's license is expired.
Why it's wrong here
An expired licence blocks enrolment entirely, producing a licensing or subscription error rather than the "already enrolled in another MDM" message, which Intune returns when a device record or MDM enrolment profile already exists. Licensing failures are tempting because they do halt enrolment, and would be the answer if the error cited an inactive user licence.
Go deeper
Related to this question
Learn chapter
Enrolling Devices with Microsoft Intune
Key term
MDM
MDM stands for Mobile Device Management, a technology that allows IT administrators to securely manage, monitor, and enforce policies on mobile devices like smartphones and tablets from a central console.
Key term
Microsoft Intune
Microsoft Intune is a cloud-based service that helps organizations manage employee devices, apps, and security policies without needing to own or control the physical hardware.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MD-102 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the MD-102 exam.