SNOW-CAD Core Application Development Practice Question
A developer needs to display a warning message to the user when a specific field value changes on a form, but the record should still be savable. Which approach should be used?
⚠ Common exam trap
Candidates often confuse client-side warnings with server-side blocking mechanisms, often choosing a Business Rule (Option B) because they think gs.addErrorMessage() can display a warning before save, but it actually runs after the record is committed, making it unsuitable for real-time field change notifications.
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 an 'onChange' Client Script using g_form.addErrorMessage() or g_form.showFieldMsg().
An 'onChange' Client Script runs on the client side when a specific field value changes, allowing the developer to display a warning message using g_form.addErrorMessage() or g_form.showFieldMsg() without preventing the record from being saved. This approach ensures the user sees the warning interactively while still being able to submit the form, which matches the requirement exactly.
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 UI Policy with a condition and a UI message.
Why it's wrong here
UI Policies can show messages but also affect field states, which is overkill for just a warning.
- ✗
Create a Business Rule that uses gs.addErrorMessage().
Why it's wrong here
gs.addErrorMessage() runs server-side and returns the message on the next server interaction, not instantly client-side.
- ✓
Create an 'onChange' Client Script using g_form.addErrorMessage() or g_form.showFieldMsg().
Why this is correct
Client Script 'onChange' can display a message client-side without preventing save.
- ✗
Create a Data Policy for the field and set a warning message.
Why it's wrong here
Data Policies are for enforcing mandatory/read-only, not for displaying warnings.
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