The answer is a signing certificate mismatch, specifically that the app is signed with a different certificate than the one uploaded to Intune. Error 0x87D1041C occurs because Intune must verify the integrity and trust chain of a line-of-business (LOB) app before installation, and when the app binary’s signature does not match the uploaded certificate, the deployment fails. On the MD-102 exam, this scenario tests your understanding of Intune’s certificate-based validation for device-required installs on iOS and Android, often appearing as a trap where candidates blame network issues or device policies. A common memory tip is to think of the error code as a “lock and key” problem: the uploaded certificate is the lock, and the app’s signing certificate is the key—if they don’t match, the door stays closed.
MD-102 Manage applications Practice Question
This MD-102 practice question tests your understanding of manage applications. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company uses Microsoft Intune to manage iOS and Android devices. Users report that some line-of-business (LOB) apps fail to install with error '0x87D1041C'. The apps are signed and deployed as device-required installs. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The app is signed with a different certificate than the one uploaded to Intune.
Error 0x87D1041C in Intune indicates a signature mismatch. When a line-of-business (LOB) app is deployed as a device-required install, the app binary must be signed with a certificate that has been uploaded to the Intune console. If the signing certificate used to sign the app differs from the one uploaded, Intune rejects the installation because it cannot verify the app's integrity and trust chain.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 user is not assigned to the app deployment.
Why it's wrong here
User assignment issues result in 'not available' rather than installation failures.
✗
The app is not compliant with the device's OS version.
Why it's wrong here
OS version issues typically show error 0x87D13B9F or similar.
✗
The device does not have the required app configuration policy.
The app is signed with a different certificate than the one uploaded to Intune.
Why this is correct
This error specifically indicates a certificate mismatch.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse error 0x87D1041C with a user assignment or OS version issue, but the specific error code directly points to a certificate mismatch, not a policy or compliance failure.
Trap categories for this question
Similar concept trap
OS version issues typically show error 0x87D13B9F or similar.
Command / output trap
OS version issues typically show error 0x87D13B9F or similar.
Detailed technical explanation
How to think about this question
Intune uses the uploaded signing certificate to validate the app's digital signature during installation on iOS and Android devices. For iOS, this involves the provisioning profile and the developer certificate; for Android, it involves the APK signing certificate. If the certificate used to sign the app is not the same as the one uploaded to Intune, the device's operating system will reject the app because the trust chain cannot be established, resulting in error 0x87D1041C. This is a common issue when apps are re-signed with a different certificate after initial upload.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this MD-102 question in full detail.
Manage applications — This question tests Manage applications — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The app is signed with a different certificate than the one uploaded to Intune. — Error 0x87D1041C in Intune indicates a signature mismatch. When a line-of-business (LOB) app is deployed as a device-required install, the app binary must be signed with a certificate that has been uploaded to the Intune console. If the signing certificate used to sign the app differs from the one uploaded, Intune rejects the installation because it cannot verify the app's integrity and trust chain.
What should I do if I get this MD-102 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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