Question 393 of 500

Core Application Development →hardMultiple ChoiceObjective-mapped

Quick Answer

The answer is that the Business Rule lacks a condition using `changesTo()` to verify the status field actually transitioned to 'Completed'. Without a condition like `current.u_status.changesTo('Completed')`, the rule fires on every insert and update, calling `gs.eventQueue` even when the status hasn't changed, which means the event is not scoped to the specific state transition required for the notification to trigger. On the ServiceNow Certified Application Developer CAD exam, this tests your understanding of Business Rule conditions and the `changesTo()` API—a common trap is assuming the event queue alone handles filtering, when in reality the condition must explicitly check for the field change. A reliable memory tip is to think "condition before action": always pair `changesTo()` with any event-triggered notification to ensure it only fires on the exact transition, not on every record save.

SNOW-CAD Core Application Development Practice Question

This SNOW-CAD practice question tests your understanding of core application development. 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 company has implemented a custom application for tracking employee training. The application uses a custom table 'u_training' with fields: u_employee (reference to sys_user), u_course (string), u_completion_date (date), and u_status (choice: Not Started, In Progress, Completed). The application has a Business Rule that runs after insert and after update. The rule should send an email notification to the employee when the status changes to 'Completed'. However, the email is not being sent. The developer has verified that the notification record exists and is active. The Business Rule script uses the 'gs.eventQueue' method to trigger a custom event. The event is registered and the notification is configured to be triggered by that event. What is the most likely cause of the issue?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

Question 1hardmultiple choice

Full question →

A
The event name is misspelled in the gs.eventQueue call.
Why wrong: If the event name were incorrect, the notification would not trigger, but the developer verified the event exists.
B
The Business Rule does not have a condition to check if the status changed to 'Completed'.
Without a condition, the event is fired on every insert and update, but the notification may have a condition that checks status. However, the likely issue is that the rule fires on all updates, but the notification condition might not be met. More precisely, the rule should fire only when status changes to Completed.
C
The notification is set to 'Inactive'.
Why wrong: The developer verified the notification is active.
D
The employee's email address is not set in sys_user.
Why wrong: If the email were missing, the notification would still be sent but fail delivery; the question says the email is not being sent at all.

Full breakdown with real-world context →

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

✓

The Business Rule does not have a condition to check if the status changed to 'Completed'.

Option B is correct because the Business Rule lacks a condition to verify that the status field actually changed to 'Completed'. Without a condition like `current.u_status.changesTo('Completed')`, the rule fires on every insert and update, calling `gs.eventQueue` even when the status hasn't changed. This means the event is triggered unnecessarily, but more critically, the notification may not fire because the event is not scoped to the specific state transition. The developer verified the notification record is active, so the missing condition is the most likely root cause.

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.

✗
The event name is misspelled in the gs.eventQueue call.
Why it's wrong here
If the event name were incorrect, the notification would not trigger, but the developer verified the event exists.
✓
The Business Rule does not have a condition to check if the status changed to 'Completed'.
Why this is correct
Without a condition, the event is fired on every insert and update, but the notification may have a condition that checks status. However, the likely issue is that the rule fires on all updates, but the notification condition might not be met. More precisely, the rule should fire only when status changes to Completed.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The notification is set to 'Inactive'.
Why it's wrong here
The developer verified the notification is active.
✗
The employee's email address is not set in sys_user.
Why it's wrong here
If the email were missing, the notification would still be sent but fail delivery; the question says the email is not being sent at all.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates assume the Business Rule will always fire the event, overlooking the need for a condition to check the specific field change, which is a common oversight in ServiceNow development.

Detailed technical explanation

How to think about this question

In ServiceNow, `gs.eventQueue` fires an event that is processed asynchronously by the event queue. The event is only queued if the Business Rule's condition evaluates to true. Without a condition like `current.u_status.changesTo('Completed')`, the rule runs on every insert and update, potentially flooding the event queue and causing the notification to fire on incorrect state changes. The `changesTo()` method compares the new value against the previous value in the database, ensuring the notification is sent only when the status transitions to 'Completed'.

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.

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

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.

What to study next

Got this wrong? Here's your next step.

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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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 — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: The Business Rule does not have a condition to check if the status changed to 'Completed'. — Option B is correct because the Business Rule lacks a condition to verify that the status field actually changed to 'Completed'. Without a condition like `current.u_status.changesTo('Completed')`, the rule fires on every insert and update, calling `gs.eventQueue` even when the status hasn't changed. This means the event is triggered unnecessarily, but more critically, the notification may not fire because the event is not scoped to the specific state transition. The developer verified the notification record is active, so the missing condition is the most likely root cause.

What should I do if I get this SNOW-CAD question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 11, 2026

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This SNOW-CAD practice question is part of Courseiva's free ServiceNow certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SNOW-CAD exam.