MB-330 Implement Inventory and Asset Management Practice Question
Exhibit
Error: The inventory transaction cannot be closed because the quantity is negative. Current balance: -5.00. Valuation method: FIFO.
Refer to the exhibit. You are experiencing issues with inventory reconciliation in the closing process. What is the root cause of this error?
⚠ Common exam trap
Candidates often assume closing errors stem from currency exchange or ledger setup issues, ignoring how negative physical inventory corrupts FIFO cost layer matching.
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 inventory model group allows negative physical inventory.
The error occurs because the FIFO inventory model cannot calculate a cost for an item when the physical inventory balance is negative. FIFO relies on established cost layers from receipts; if the system has issued more than it has received, it cannot match the issue to a receipt layer, causing the inventory closing process to fail during the matching phase.
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 inventory model group allows negative physical inventory.
Why this is correct
Allowing negative inventory permits the issuance of stock before it is physically received. When the inventory closing process attempts to calculate the actual cost using FIFO, it fails because there is no receipt layer to attach the cost to, as the balance is currently in a negative state.
- ✗
The item requires a mandatory serial number.
Why it's wrong here
Serial numbers are tracking dimensions used for traceability, not financial valuation. While they can complicate the reconciliation process if not recorded correctly, they do not block the inventory closing process from finalizing transactions in the same way that a negative physical balance does for FIFO valuation models.
- ✗
The inventory closing is missing a ledger account.
Why it's wrong here
Missing ledger accounts would result in posting errors during the settlement process, not a quantitative balance error. The error explicitly mentions that the quantity is negative, which points directly to a physical inventory handling issue rather than a configuration issue related to the General Ledger posting profiles.
- ✗
The storage dimension group is improperly configured.
Why it's wrong here
Storage dimension groups manage site, warehouse, and location settings. While they affect how inventory is stored and tracked, they are not the primary cause of inventory closing failures due to negative quantities. The issue is fundamentally a valuation conflict, which stems from the item model group settings.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Microsoft exam blueprint
This MB-330 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 MB-330 exam.