SNOW-CAD Practice Question: Application development using ServiceNow Studio
When creating a business rule in Studio, a developer wants the rule to run only when the state field changes from 'New' to 'Work in Progress'. Which condition 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
✓
current.state.changesTo('Work in Progress')
ChangesTo('Work in Progress') triggers when the field changes to that specific value. Option A triggers on any change, B triggers when changing from a value, and D checks current and previous values incorrectly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
current.state.changesFrom('New')
Why it's wrong here
This fires when changing from 'New' to any other value.
- ✗
current.state == 'New' && previous.state == 'Work in Progress'
Why it's wrong here
This incorrectly checks current is 'New' and previous is 'Work in Progress', opposite of the required transition.
- ✓
current.state.changesTo('Work in Progress')
Why this is correct
This correctly fires only when state changes to 'Work in Progress'.
- ✗
current.state.changes()
Why it's wrong here
This fires on any change to the state field, not specific transitions.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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