Quick Answer
The correct answer is On load. This is one of the two primary UI Policy trigger types in ServiceNow, alongside On change, which together control client-side form behavior. On load triggers execute automatically when a form is first rendered in the browser, allowing you to set default values, hide or show fields, or make fields read-only before any user interaction occurs. On change triggers fire only when a specified field’s value is modified by the user, enabling dynamic updates like showing a new section when a checkbox is ticked. On the ServiceNow Certified Application Developer CAD exam, this distinction is frequently tested because candidates often confuse On load with On change or mistakenly think On submit is a valid UI Policy type. A common trap is assuming UI Policies run server-side—they do not; they are purely client-side scripts. To remember: think of On load as the “setup” trigger that runs once when the page opens, and On change as the “reaction” trigger that responds to user edits. A simple mnemonic is “Load sets the stage, change turns the page.”
This SNOW-CAD practice question tests your understanding of core application development. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Which TWO of the following are types of UI Policies? (Choose two.)
On change
UI Policies can run when a field changes.
On load
UI Policies can run on form load.
On submit
Why wrong: On submit is not a UI Policy type.
On delete
Why wrong: On delete is not a UI Policy type.
On query
Why wrong: On query is not a UI Policy type.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
On change
UI Policies in ServiceNow are client-side scripts that run on the browser to control the behavior of fields on a form. The 'On change' type triggers when a specified field's value changes, allowing dynamic field updates or visibility changes. The 'On load' type triggers when the form is initially loaded, enabling default value setting or field configuration before user interaction.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
On change
Why this is correct
UI Policies can run when a field changes.
Related concept
Read the scenario before looking for a memorised answer.
On load
Why this is correct
UI Policies can run on form load.
Related concept
Read the scenario before looking for a memorised answer.
On submit
Why it's wrong here
On submit is not a UI Policy type.
On delete
Why it's wrong here
On delete is not a UI Policy type.
On query
Why it's wrong here
On query is not a UI Policy type.
Common exam traps
The trap here is that candidates often confuse UI Policy triggers with Business Rule triggers, mistakenly selecting 'On submit' or 'On query' because they are familiar server-side events, but UI Policies only support 'On load' and 'On change' as client-side events.
Detailed technical explanation
UI Policies execute as client-side JavaScript in the browser, using g_form and g_user APIs to manipulate field properties like mandatory, visible, or read-only. They are evaluated on the client without a server round-trip, making them efficient for real-time form interactions. A subtle behavior is that 'On change' UI Policies can be configured to run on a specific field's change, while 'On load' runs once per form load, and both can be combined with conditions to control execution.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Core Application Development — This question tests Core Application Development — Read the scenario before looking for a memorised answer..
The correct answer is: On change — UI Policies in ServiceNow are client-side scripts that run on the browser to control the behavior of fields on a form. The 'On change' type triggers when a specified field's value changes, allowing dynamic field updates or visibility changes. The 'On load' type triggers when the form is initially loaded, enabling default value setting or field configuration before user interaction.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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.
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