Salesforce DEX-403 Exam Dumps

Get All Declarative Development for Platform App Builders in Lightning Experience Exam Questions with Validated Answers

DEX-403 Pack
Vendor: Salesforce
Exam Code: DEX-403
Exam Name: Declarative Development for Platform App Builders in Lightning Experience
Exam Questions: 291
Last Updated: August 21, 2026
Related Certifications: Platform APP Builder
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Free Salesforce DEX-403 Exam Actual Questions

Question No. 1

An app builder just added a lookup field to Account from the existing custom object, Box.

Which report type is automatically created?

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Correct Answer: D

Upon adding a lookup field to Account from a custom object, Box:

D . Accounts with Boxes. Salesforce automatically creates a new report type that reflects the relationship from the perspective of the parent object, in this case, Accounts, showing related Box records.

This new report type enables users to create reports that list Accounts along with their associated Boxes, if any.

For further understanding of report types and relationships, Salesforce's guide on Report Types provides comprehensive information on how these are structured following modifications to object relationships.


Question No. 2

At Universal Containers, each admin and developer use a separate developer pro sandbox. Configuration and code are then migrated to a partial data sandbox for combination and initial testing. Once approved the configuration and code are then migrated to a full sandbox for final toad and regression testing before going to production.

When should the full sandbox be refreshed?

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Correct Answer: C

The full sandbox should be refreshed after each major release to production. This way, the full sandbox will have the most updated data and metadata from the production org, and can be used for final load and regression testing before the next release. Option A is incorrect because refreshing the full sandbox after user acceptance testing is complete is not necessary, as user acceptance testing can be done in the partial data sandbox or the production org. Option B is incorrect because refreshing the full sandbox after each push from the partial data sandbox is not necessary, as the full sandbox can receive configuration and code changes from the partial data sandbox without refreshing. Option D is incorrect because refreshing the full sandbox after a new user is added to production is not necessary, as adding a new user does not affect the data and metadata in the full sandbox.


Question No. 3

An app builder would like to streamline the user experience by reflecting summarized calculations of specific fields on various objects. Which field types could be used in roll-up summary fields to accomplish this? Choose 3 answers

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Question No. 4

Universal Containers uses a private sharing model on Accounts. User A and user B both own Accounts of their own and have both been sent a new account record in an email owned by user C to take a look at. User A is able to open and view the record but user B receives an insufficient privileges error. User A and user B have the same role in the role hierarchy as user.

What are the three reasons user A has access but user B is unable to access the record? Choose 3 answers

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Correct Answer: A, C, E

The three reasons user A has access but user B is unable to access the record are:

User A is on the same account team as user C. Account teams are groups of users who work together on an account. Users who are on an account team can have access to the account and related records owned by other team members.

User C has manually shared the record with user A. Manual sharing is a way of granting access to individual users or groups by the record owner or someone above them in the role hierarchy.

User A is in a public group that has access via a sharing rule. Public groups are groups of users who can be used to share data or assign permissions. Sharing rules are automatic rules that grant access to groups of users based on certain criteria. Option B and D are not reasons for user A's access.


Question No. 5

An app builder needs to deploy a new account detail page layout from sandbox to production.

Which three components should an app builder include in the Change Set to ensure it deploys successfully and visually as expected?

Choose 3 answers

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Correct Answer: A, B, C

To deploy a new account detail page layout from sandbox to production, an app builder should include three components in the change set:

Detail page layout: The page layout defines the arrangement of fields, buttons, related lists, and other components on a record detail or edit page. It also controls which fields are required or read-only for users.Source

Custom fields: Custom fields are fields that are created by users to store additional information on standard or custom objects. Custom fields can have different data types, such as text, number, date, picklist, etc.Source

Custom actions: Custom actions are actions that are created by users to extend the functionality of standard or custom objects. Custom actions can be global or object-specific, and they can invoke different tools such as Lightning components, Visualforce pages, flows, etc. [Source]


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