MB-920 Practice Question: Describe the core capabilities of the finance and operations apps
This MB-920 practice question tests your understanding of describe the core capabilities of the finance and operations apps. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 warehouse manager notices that a purchase order receipt for 100 units of an item only updates the on-hand quantity by 80 units. The item is serial-controlled. The reception was recorded. What is the most likely reason for the discrepancy?
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
✓
Not all serial numbers were registered during the receipt process.
When a purchase order receipt for 100 units of a serial-controlled item only updates on-hand quantity by 80, the most likely cause is that not all serial numbers were registered during the receipt process. In Dynamics 365 Supply Chain Management, serial-controlled items require each unit to have a unique serial number recorded at the time of receipt; if some serial numbers are missing or not scanned, the system only updates inventory for the registered serial numbers, leaving the receipt partially posted.
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.
✓
Not all serial numbers were registered during the receipt process.
Why this is correct
Serial numbers must be individually registered; missing registrations cause quantity discrepancy.
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.
✗
The product dimensions (e.g., color) were not specified.
Why it's wrong here
Missing dimensions would prevent receipt altogether, not cause partial update.
✗
A quality order was created for the received items.
Why it's wrong here
Quality orders block inventory but still reflect the full receipt quantity.
✗
The items were partially reserved for a sales order.
Why it's wrong here
Reservation does not affect the receipt quantity; it affects availability.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often assume a quality order or reservation would reduce on-hand quantity, but in Dynamics 365, quality orders create a separate inventory status (e.g., 'Quarantine') without reducing the total on-hand, and reservations only block availability without changing the physical count.
Detailed technical explanation
How to think about this question
Under the hood, the `InventTrans` table records each inventory transaction, and for serial-controlled items, the `InventSerial` table must have a row for each serial number. If the receipt is processed via a mobile device or manual entry and some serials are omitted, the system posts only the registered serials, leaving the receipt line partially posted (status 'Received' but quantity less than ordered). A real-world scenario is a warehouse worker scanning only 80 of 100 physical items due to a barcode scanner error, causing the system to show a discrepancy that requires a serial number correction or a new receipt for the missing 20 units.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Describe the core capabilities of the finance and operations apps — This question tests Describe the core capabilities of the finance and operations apps — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Not all serial numbers were registered during the receipt process. — When a purchase order receipt for 100 units of a serial-controlled item only updates on-hand quantity by 80, the most likely cause is that not all serial numbers were registered during the receipt process. In Dynamics 365 Supply Chain Management, serial-controlled items require each unit to have a unique serial number recorded at the time of receipt; if some serial numbers are missing or not scanned, the system only updates inventory for the registered serial numbers, leaving the receipt partially posted.
What should I do if I get this MB-920 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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