SNOW-CAD Practice Question: Application development using ServiceNow Studio
A developer needs to implement a server-side validation that prevents update to a record if a related record's status is 'Closed'. Where should this logic be placed?
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
✓
Business rule
A business rule runs server-side when a record is updated and can enforce the validation before the update occurs. Client scripts and UI policies are client-side and can be bypassed. ACLs are for access control, not validation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ACL
Why it's wrong here
ACLs control read/write access, not validation logic.
- ✗
Client script
Why it's wrong here
Client scripts run in the browser and can be circumvented.
- ✗
UI policy
Why it's wrong here
UI policies are client-side and primarily for UI behavior, not server-side validation.
- ✓
Business rule
Why this is correct
Business rules execute on the server and can abort transactions based on conditions.
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