DEX-403E Exam Questions and Answers

QUESTION: 26

Universal Containers created a custom object called Component to capture details about products sold.
What approach should an app builder take to show Component as a related list on Product?

Create a master-detail relationship on Product to Component. Add the Component related list to the Product page layout.
Create a junction object to relate Component and Product. Add the Component related list to the Product page layout.
Create a roll-up on Product. Add the Component related list to the Product page layout.
Create a lookup relationship on Component to Product. Add the Component related list to the Product page layout.

Answer(s): D

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QUESTION: 27

What are the limitations of Schema Builder when creating a custom object?

"Save" should be clicked each time a new object, field, or relationship is created.
Fields and relationships can be created, but they will be unable to add the fields to the page layout from the canvas.
Relationships can be made to any custom objects, but any relationships to standard objects should be built in Lightning Object Manager.
Custom fields can be added to any custom objects, excluding formula field types.

Answer(s): B

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Cloud Kicks received a new requirement to calculate summaries from child objects of a standard object. The team would prefer to solve this declaratively.
What are two considerations an app builder should evaluate? Choose 2 answers

An app builder is unable to change a lookup to a master-detail relationship.
An object can have up to two master-detail relationships.
A trigger on save or update can kick off calculations.
A value is required in all records of the lookup field prior to converting to a master-detail relationship.

Answer(s): A,B

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QUESTION: 29

An app builder is creating a Lightning record page and has added Mobile & Lightning Actions to the page layout.
What two components could be included on the layout to display the actions? Choose 2 answers

Highlights panel
Chatter
Activities
Path

Answer(s): A,C

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QUESTION: 30

A Cloud Kicks employee submitted an opportunity for approval by their manager.
What would happen if the employee attempts to edit the description field after submission?

User will be presented with a 'Record Lock' notification.
User will be able to edit the description field only.
User will see the record is now owned by their manager.
User will be able to edit the name, but unable to edit the description.

Answer(s): A

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Salesforce DEX-403E Exam (page: 6)
Salesforce Declarative Development for Platform App Builders in Lightning- Extended
Updated on: 15-Feb-2026

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Salesforce DEX-403E Exam (page: 6) Salesforce Declarative Development for Platform App Builders in Lightning- Extended Updated on: 15-Feb-2026

QUESTION: 26

QUESTION: 27

QUESTION: 28

QUESTION: 29

QUESTION: 30

Salesforce DEX-403E Exam (page: 6)
Salesforce Declarative Development for Platform App Builders in Lightning- Extended
Updated on: 15-Feb-2026