Free DEX-403 Mock Exam – Practice Online Confidently

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Exam Code: DEX-403
Exam Questions: 654
Declarative Development for Platform App Builders in Lightning Experience (WI25)
Updated: 24 Aug, 2026
Question 1

An app builder wants to create a custom Sync button on Account that will call a Lightning Web Component that connects with an external system. This action should only be available If the custom Status field is set to Ready to Sync.
What should an app builder use to add this functionality to an Account record page?

Options :
Answer: B

Question 2

You should use a lookup filter if __________. (Choose two.)

Options :
Answer: A,C

Question 3

Universal Containers uses the Asset object to track products that are installed at customer locations. A new
object, Asset Inventory, has been created to capture details about the asset.
Which approach should the app builder take to show Asset Inventory as a related list on Asset?

Options :
Answer: D

Question 4

When an opportunity is closed date is pushed more than 30 days, manager approval is required. An approval
process is in place but reps frequently forget to submit for approval to run the process.
How can an app builder ensure that these opportunities are submitted into the approval process?

Options :
Answer: D

Question 5

Universal Containers needs the ability to generate proposal documents. All the data required for a proposalresides in a custom object.What is the recommended solution?

Options :
Answer: C

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