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 company uses Dynamics 365 Commerce. They want to offer a promotion: 'Buy one, get one free' for specific products. Which pricing engine capability should they use?
Mix and match discounts
Mix and match discounts support buy-one-get-one-free promotions.
Quantity discount
Why wrong: Quantity discount applies when buying multiples, not necessarily free.
Periodic discount
Why wrong: Periodic discount is a simple percentage off, not buy-one-get-one.
Total discount
Why wrong: Total discount is a percentage off the entire order, not specific products.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Mix and match discounts
The 'Buy one, get one free' promotion is a classic mix and match scenario where a specific combination of products (e.g., two items from a defined set) triggers a discount. In Dynamics 365 Commerce, the Mix and match discount engine is designed to handle such promotional offers by defining a set of products and the required quantity to qualify for a discount, including free items. This capability allows the system to automatically apply the discount at the point of sale when the correct product combination is scanned.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Mix and match discounts
Why this is correct
Mix and match discounts support buy-one-get-one-free promotions.
Related concept
Read the scenario before looking for a memorised answer.
Quantity discount
Why it's wrong here
Quantity discount applies when buying multiples, not necessarily free.
Periodic discount
Why it's wrong here
Periodic discount is a simple percentage off, not buy-one-get-one.
Total discount
Why it's wrong here
Total discount is a percentage off the entire order, not specific products.
Common exam traps
The trap here is that candidates often confuse 'Mix and match discounts' with 'Quantity discounts' because both involve multiple items, but quantity discounts reduce the price per unit for all items, while mix and match discounts require a specific combination and can offer free items.
Detailed technical explanation
Under the hood, the Mix and match discount engine in Dynamics 365 Commerce uses discount setup rules that define a discount group, a minimum quantity (e.g., 2), and a discount method (e.g., 'Buy this quantity, get this quantity free'). The system calculates the discount by identifying the cheapest product in the qualifying set to apply the free item logic, which is critical for promotions like 'Buy one, get one free' where the free item is typically the lower-priced one. In a real-world scenario, if a retailer sets up a 'Buy one, get one free' on a specific brand of shoes, the mix and match engine ensures that only the exact product IDs in the discount group trigger the promotion, preventing unintended discounts on similar items.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
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FAQ
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..
The correct answer is: Mix and match discounts — The 'Buy one, get one free' promotion is a classic mix and match scenario where a specific combination of products (e.g., two items from a defined set) triggers a discount. In Dynamics 365 Commerce, the Mix and match discount engine is designed to handle such promotional offers by defining a set of products and the required quantity to qualify for a discount, including free items. This capability allows the system to automatically apply the discount at the point of sale when the correct product combination is scanned.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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