- A
Remove the Coalesce field from the Transform Map so that duplicate detection is disabled.
Why wrong: Removing coalesce would cause every import to insert a new record, even if a record with the same logical key already exists, resulting in duplicates.
- B
Change the 'On Success' action on the Transform Map to 'Insert' to ensure all incoming records are treated as new.
Why wrong: This would cause duplicate records if the same order is imported again, leading to data integrity issues.
- C
Modify the Coalesce field to use a combination of fields (e.g., order number and region) that uniquely identifies each record, or create a dedicated unique identifier.
A unique coalesce field ensures that the system correctly matches existing records, preventing false 'already exists' errors and allowing proper updates.
- D
Increase the frequency of the scheduled import to run every hour so that errors are minimized.
Why wrong: Frequency does not fix the matching logic; errors would persist regardless of timing.
SNOW-CAD Integrating and managing application data Practice Question
This SNOW-CAD practice question tests your understanding of integrating and managing application data. 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 large enterprise uses a scheduled import to retrieve order data from an external ERP system every night at 2 AM. The import runs a REST API call that returns JSON data, which is processed by an Import Set Row and a Transform Map to populate the custom table 'u_order'. Recently, the import completed with errors: some orders were not imported, and the error log shows 'Record already exists' for those orders. However, when the developer checks the 'u_order' table, the referenced orders do not exist. The developer reviews the Import Set Row and finds that the 'Coalesce' field is set to 'u_order_number', but further investigation reveals that the 'u_order_number' field is not unique in the table; multiple records can have the same order number because they are from different regions. The Transform Map is configured with 'On Success' = 'Update'. What is the best course of action to resolve the issue?
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
Modify the Coalesce field to use a combination of fields (e.g., order number and region) that uniquely identifies each record, or create a dedicated unique identifier.
Option C is correct because the coalesce field must uniquely identify records to avoid false positive matches. Using a combination of fields (e.g., order number and region) ensures each record is uniquely identified. Option A would cause duplicates if the same logical order is reimported. Option B would also cause duplicates because coalesce is disabled. Option D does not address the root cause of incorrect matching.
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.
- ✗
Remove the Coalesce field from the Transform Map so that duplicate detection is disabled.
Why it's wrong here
Removing coalesce would cause every import to insert a new record, even if a record with the same logical key already exists, resulting in duplicates.
- ✗
Change the 'On Success' action on the Transform Map to 'Insert' to ensure all incoming records are treated as new.
Why it's wrong here
This would cause duplicate records if the same order is imported again, leading to data integrity issues.
- ✓
Modify the Coalesce field to use a combination of fields (e.g., order number and region) that uniquely identifies each record, or create a dedicated unique identifier.
Why this is correct
A unique coalesce field ensures that the system correctly matches existing records, preventing false 'already exists' errors and allowing proper updates.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Increase the frequency of the scheduled import to run every hour so that errors are minimized.
Why it's wrong here
Frequency does not fix the matching logic; errors would persist regardless of timing.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- 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 practitioner preparing for the SNOW-CAD exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
Visual reference
What to study next
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Identify which SNOW-CAD exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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FAQ
Questions learners often ask
What does this SNOW-CAD question test?
Integrating and managing application data — This question tests Integrating and managing application data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Modify the Coalesce field to use a combination of fields (e.g., order number and region) that uniquely identifies each record, or create a dedicated unique identifier. — Option C is correct because the coalesce field must uniquely identify records to avoid false positive matches. Using a combination of fields (e.g., order number and region) ensures each record is uniquely identified. Option A would cause duplicates if the same logical order is reimported. Option B would also cause duplicates because coalesce is disabled. Option D does not address the root cause of incorrect matching.
What should I do if I get this SNOW-CAD question wrong?
Identify which SNOW-CAD exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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