MB-910 Describe Dynamics 365 Customer Insights Practice Question
A retail company uses Dynamics 365 Customer Insights to unify customer data from their online store, loyalty program, and in-store POS systems. After unification, they notice that some customers have duplicate profiles. What is the most likely cause and recommended action?
⚠ Common exam trap
Many candidates assume duplicates are a data quality issue requiring manual cleanup or a support escalation, rather than recognizing that the unification engine's match rules are the primary control for deduplication and must be tuned appropriately.
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
✓
Review and adjust the match rules used during the data unification process
Duplicate profiles after unification typically occur when the match rules (deduplication rules) are not configured precisely enough to identify that two records represent the same customer. In Dynamics 365 Customer Insights, the unification process uses these rules to merge profiles based on attributes like email or phone; if the rules are too loose or missing key identifiers, duplicates persist. Adjusting the match rules—such as setting exact match on email or using fuzzy matching with appropriate thresholds—resolves the issue without altering source data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Re-run the data unification process without any changes
Why it's wrong here
Re-running without changes will produce the same results.
- ✓
Review and adjust the match rules used during the data unification process
Why this is correct
Adjusting match rules can reduce false positives and improve deduplication accuracy.
- ✗
Manually delete duplicate customer records from the source systems
Why it's wrong here
Manual deletion is error-prone and not a recommended long-term solution.
- ✗
Contact Microsoft support to increase the deduplication limit
Why it's wrong here
Deduplication limits are not the issue; the problem is rule configuration.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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