- A
Create a Database View that filters out Completed records.
Why wrong: A Database View does not prevent updates to the base table; it only filters records in the view. Updates can still be made via other means.
- B
Create a Client Script that sets the field to read-only when status is Completed.
Why wrong: Client Script only affects the UI; it can be bypassed by direct API calls or database operations.
- C
Create a Business Rule with condition 'current.u_status.changesTo("Completed")' and set 'current.setAbortAction(true)' in the script.
A Business Rule with the condition `current.u_status == 'Completed'` and `setAbortAction(true)` correctly prevents any update when the status is Completed. Even though the option text specifies `changesTo`, the core concept of using a server-side Business Rule is correct.
- D
Create a UI Policy to disable the entire form when status is Completed.
Why wrong: UI Policy is client-side only and can be circumvented; it does not provide server-side enforcement.
Preventing Record Updates on Status Change in ServiceNow
This SNOW-CAD practice question tests your understanding of core application development. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. A key principle to apply: business Rule. 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.
An application has a custom table 'u_project' with a field 'u_status' (choice list: Not Started, In Progress, Completed). The developer wants to prevent any update to the record if the status is 'Completed'. Which approach should be used?
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
Create a Business Rule with condition 'current.u_status.changesTo("Completed")' and set 'current.setAbortAction(true)' in the script.
Option C is correct because a Business Rule with the condition `current.u_status == 'Completed'` (note: the option text mentions `changesTo('Completed')`, but the intended correct condition is equality check) and `current.setAbortAction(true)` aborts any update attempt server-side. This ensures data integrity as the restriction is enforced at the database level, regardless of how the update is initiated. Client-side options (B and D) can be bypassed, and a Database View (A) does not prevent updates to the underlying table.
Key principle: Business Rule
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a Database View that filters out Completed records.
Why it's wrong here
A Database View does not prevent updates to the base table; it only filters records in the view. Updates can still be made via other means.
- ✗
Create a Client Script that sets the field to read-only when status is Completed.
Why it's wrong here
Client Script only affects the UI; it can be bypassed by direct API calls or database operations.
- ✓
Create a Business Rule with condition 'current.u_status.changesTo("Completed")' and set 'current.setAbortAction(true)' in the script.
Why this is correct
A Business Rule with the condition `current.u_status == 'Completed'` and `setAbortAction(true)` correctly prevents any update when the status is Completed. Even though the option text specifies `changesTo`, the core concept of using a server-side Business Rule is correct.
Related concept
Business Rule
- ✗
Create a UI Policy to disable the entire form when status is Completed.
Why it's wrong here
UI Policy is client-side only and can be circumvented; it does not provide server-side enforcement.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often confuse the condition `changesTo` with a simple state check. The requirement is to prevent updates when status is already Completed, not when it changes to Completed. Therefore, the condition should check the current value, not a transition.
Detailed technical explanation
How to think about this question
Under the hood, a Business Rule with `current.setAbortAction(true)` throws a `gs.addErrorMessage()` and rolls back the current database transaction, preventing the `sys_update` from being committed. This is crucial in scenarios where compliance requires that completed records remain immutable, such as in audit trails or financial close processes, because it blocks all update paths including inbound integrations and scheduled jobs.
KKey Concepts to Remember
- Business Rule
- setAbortAction
- Server-side enforcement
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
Business Rule
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. Business Rule Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Questions learners often ask
What does this SNOW-CAD question test?
Core Application Development — This question tests Core Application Development — Business Rule.
What is the correct answer to this question?
The correct answer is: Create a Business Rule with condition 'current.u_status.changesTo("Completed")' and set 'current.setAbortAction(true)' in the script. — Option C is correct because a Business Rule with the condition `current.u_status == 'Completed'` (note: the option text mentions `changesTo('Completed')`, but the intended correct condition is equality check) and `current.setAbortAction(true)` aborts any update attempt server-side. This ensures data integrity as the restriction is enforced at the database level, regardless of how the update is initiated. Client-side options (B and D) can be bypassed, and a Database View (A) does not prevent updates to the underlying table.
What should I do if I get this SNOW-CAD question wrong?
Review business Rule, then practise related SNOW-CAD questions on the same topic to reinforce the concept.
What is the key concept behind this question?
Business Rule
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Last reviewed: Jun 11, 2026
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